ライフサイエンスコーパス: polaron

1 the formation of localized charge carriers (polarons).

2 ying lattice distortion form a new entity, a polaron.

3 rrier-lattice coupling associated with small polarons.

4 n to carrier conductivity and bound magnetic polarons.

5 scades that lead to exceptionally long-lived polarons.

6 ce of g-factor between positive and negative polarons.

7 ng of both neutral molecular excitations and polarons.

8 imine formation, caused by deprotonation of polarons.

9 distorted metal sites consistent with small polarons.

10 nd to form new quasiparticles known as Fermi polarons.

11 ctuations of the lengths of these unconfined polarons.

12 imentally and theoretically, is transport by polarons.

13 e presence of a large density of delocalized polarons.

14 d by hole (SWNT(*+)) and electron (SWNT(*-)) polarons.

15 Ferroelectric Large Polarons.

16 is arises from the formation of paramagnetic polarons.

17 tes that dynamic stripe phase may host small polarons.

18 arriers in these materials existing as large polarons.

19 the hard gap, associated with bound magnetic polarons.

20 citations and are best explained as magnetic polarons.

21 in birnessite with the concept of the small polaron, a special kind of point defect.

22 The electron polaron, a spin-1/2 excitation, is the fundamental negat

23 This type of polaron allows efficient Coulomb screening of an electro

24 s which was attributable to the formation of polarons along the main chains.

25 uge transition state energies for hopping of polarons along wire segments.

26 bsorption spectra of DPA(-*) and the adenine polaron (An(+*)) are observed.

27 elective coupling of coherent phonons to the polaron and CDW modulation, and the emergence of a non-t

28 caused PPy oxidation, with the formation of polaron and imine species strongly dependent on the surr

29 he chemically oxidized ladders revealed both polaron and intervalence absorption bands.

30 les only the spectral predictions of a small polaron and not the pre-edge features expected for mid-g

31 competitive with charge recombination of the polaron and P (-*) only at short P-G distances.

32 ell as spectroscopic signatures of SWNT hole polaron and PDI radical anion (PDI(-.) ) states.

33 ving both an intimately associated SWNT hole polaron and PDI(-.) charge-separated state, and a relate

34 c signatures characteristic of the SWNT hole polaron and PDI(-.) states.

35 The dynamics of negative polaron and triplet exciton transport within a series of

36 units determines the relative stabilities of polarons and bipolarons, with larger donor units stabili

37 DW) coexist with strongly-localized electron polarons and bipolarons.

38 uasiparticles--such as excitons, dropletons, polarons and Cooper pairs.

39 resolve the subpicosecond formation of small polarons and estimate their reorganisation energy to be

40 The results indicate that negative polarons and excitons are transported rapidly, on averag

41 Moreover, we calculate the effective mass of polarons and find a smooth crossover from weak to strong

42 as used to monitor bias-induced formation of polarons and imines in PPy layers incorporated into soli

43 ter more polarizable lattice supports stable polarons and longer-lived residual carriers.

44 nergies of the midgap states for stable hole polarons and their corresponding spectra.

45 icrowave signal changes, we identify exciton polarons and their Rydberg states.

46 y the screening, leading to the formation of polarons and thereby extending the lifetime.

47 ce for a disputed pairing transition between polarons and tightly bound dimers, which provides insigh

48 onduits for transport of electrons (negative polaron) and triplet excitons.

49 ving electron-phonon interactions, plasmons, polarons, and a phonon analog of the vacuum Rabi splitti

50 nic species, including small polarons, large polarons, and charge density waves, and we explain a var

51 ely non-conductive bipolarons and not single polarons, and that transient absorption spectroscopy fol

52 Thus, triplet-polaron annihilation that leads to long-term luminescent

53 we identify a range of parameters where spin polarons are formed and discuss their possible experimen

54 ance are discussed, and bipolarons and small polarons are identified as the responsible photorefracti

55 vanced ab initio calculations disclosed that polarons are plausibly formed at radical sites in fluoro

56 of the two-dimensional Fermi-Hubbard model, polarons are predicted to form around charged dopants in

57 iangular geometry promotes antiferromagnetic polarons around hole dopants(7).

58 ic pressure suggest Fe2+-Fe3+ hopping (small polaron) as the dominant conductivity mechanism, the pre

59 f CMR being the scattering of spin-polarized polarons at the boundaries of ferromagnetic clusters.

60 atures of anionic PTCDI-C8 species and broad polaron bands when the organic semiconductor layer is do

61 his report provides fundamental insight into polaron-based charge-transport in p-type 2D organic laye

62 the localized magnetic moments of spin-orbit polarons become tunable and eventually become itinerantl

63 ain polaron, the result of each chain of the polaron being closer to some of the polarization charge

64 ge carrier subpopulations, in particular the polaron-bipolaron equilibrium.

65 gave a single band demonstrating the classic polaron-bipolaron transition.

66 Trapping of the (A 3-4) (+*) polaron by a G base at the opposite end of the A-tract f

67 that the ability to form ferroelectric large polarons can be a general principle for the efficient sc

68 Both types of polarons can be created, moved, erased, and moreover int

69 various hypotheses including those of large-polaron charge transport and fugitive electron spin pola

70 nce PPy conductivity depends strongly on the polaron concentration, monitoring its concentration is c

71 e, the solvent dielectric, and nanotube hole polaron concentration.

72 ature measurements are consistent with small polaron conduction, but at higher temperatures, which ar

73 th first-principles calculations, two stable polaron configurations, centered at atop and hollow site

74 Transport by these polarons could explain the results of Giese et al., rece

75 sport behavior, suggests that bound magnetic polarons create the hard gap in the system that can be c

76 rt the observation of dangling-bond magnetic polarons (DBMPs) in 2.8-nm diameter CdSe colloidal nanoc

77 vide a direct measure of the (6,5) SWNT hole polaron delocalization length (2.75 nm); (iii) determine

78 r current study thus not only determines the polaron delocalization length in PTB7 but also validates

79 crystals, the excess charge carrier forms a polaron delocalized over up to 10-20 molecules in the mo

80 The stability of the polarons depends on the organization of the polymer-full

81 Because the electron polaron dimension can be linked to key performance metri

82 account for percolation, cross-hopping, and polaron-distribution, and it is found that a near-perfec

83 gest that this ultrafast transport is due to polaron drift, which has been shown to lead to similar m

84 We conclude that polaron dynamics are intriguing and deserving of further

85 From the correlation with nanomovies of the polaron dynamics, we then infer how a softer more polari

86 issipative quantum tunnelling subject to the polaron effect.

87 Polarons-electronic charge carriers 'dressed' by a local

88 nteractions with photons, excitons, phonons, polarons, electrons, holes, spins, ions and molecules, w

89 We conclude that polarons emerge within 300 fs.

90 t-off, but physically meaningful regularized polaron energies are also presented.

91 Polaron energies obtained by our method are in excellent

92 tantially more delocalized than the positive polaron, exceeding 10 monomeric units.

93 ed reversible polythiophene oxidation to its polaron form accompanied by a one-electron viologen redu

94 ion "propagates" by growth of the conducting polaron form away from the source electrode.

95 charge-transfer (CT) character that precedes polaron formation and bulk electronic conductivity.

96 The polaron formation at low temperatures occurs by optical

97 The dynamics of two-dimensional small-polaron formation at ultrathin alkane layers on a silver

98 er phases (regardless of the strength of the polaron formation energy) is explained, and the trapped

99 duce the internal quantum efficiency of free polaron formation in the bulk-heterojunction blends of C

100 coupling to phonons by directly visualizing polaron formation in the material.

101 However, the role of small polaron formation in the photoexcited state and how this

102 ests that a universal mechanism may underlie polaron formation in transition metal oxides, and provid

103 Small polaron formation is evidenced by a sub-100 fs splitting

104 Small polaron formation is known to limit ground-state mobilit

105 -dependent localization of carriers by small polaron formation is potentially a limiting factor in ha

106 The small polaron formation kinetics reproduces the triple-exponen

107 ns in the photocurrent signals indicate that polaron formation may be coupled to specific phonon mode

108 ts energetic carriers via solvation or large polaron formation on time scales competitive with that o

109 The small polaron formation probability, hopping radius and lifeti

110 tric and magnetic fields, showing that while polaron formation remains robust under moderate fields,

111 atially resolved Raman spectroscopy revealed polaron formation throughout the polymer layer, even awa

112 ds by the inertial motion of substrate ions (polaron formation) and, more slowly, by adsorbate molecu

113 mely: (1) recombination via trap states, (2) polaron formation, (3) the indirect nature of the bandga

114 ng the initial coherent dynamics of magnetic polaron formation, and highlighting the importance of ma

115 A solid-state analogy of solvation is polaron formation, but the magnitude of Coulomb screenin

116 of the doublon is a necessary condition for polaron formation, by comparing this setting with a scen

117 Using this value and taking into account polaron formation, we find the wave functions of holes t

118 nitrile, oxidation led primarily to cationic polaron formation, while oxidation in 0.1 M NaOH in H(2)

119 enting challenges with charge transport from polaron formation.

120 sacrificial agents at the interface, slowing polaron formation.

121 This is a bending polaron, formation of which should be critically depende

122 ttice, that can be described as a collective polaron formed by a polariton condensate.

123 nment interaction, due to the new composite (polaron) formed by excitons and vibrons.

124 nds with a hole from another, and a Holstein polaron, formed by an electron dressed by a sea of phono

125 e formation of the smallest skyrmions - spin polarons, formed as bound states of an electron and a sp

126 opy and lasts several picoseconds before the polaron forms.

127 the variable-range hopping of self-localized polarons found in more disordered polymers.

128 These results suggest that shielding the polaron from the anion is a critically important aspect

129 ecules can accept either one or two electron polarons from the surface, forming superoxo or peroxo sp

130 in these hairpins is completely dominated by polaron generation and movement to a trap site rather th

131 orption spectroscopy was used to investigate polaron generation efficiency as well as recombination d

132 nd yttrium-doped LZO, which leads to a small-polaron hole.

133 coworkers proposed that transport occurs by polaron hopping between sites having approximately equal

134 We demonstrate that a small polaron hopping conduction mechanism dominates from 250

135 enomenon is explained using Mott's theory of polaron hopping in disordered solids containing transiti

136 The small-polaron hopping model has been used for six decades to r

137 are not contained in the conventional small-polaron hopping model, highlighting its inadequacy.

138 hopping that we identify as phonon-assisted polaron hopping.

139 mally induced hopping, or by phonon-assisted polaron hopping.

140 The stabilization of this polaron impedes equilibration of charge density across t

141 heoretically debated properties of the Fermi polaron in a two-dimensional Fermi gas.

142 the wavefunction and energy of the solvated polaron in DNA with a simple model in which the charge w

143 esent the discovery of an interlayer plasmon polaron in heterostructures composed of graphene on top

144 Sufficient delocalization of the positive polaron in organic photovoltaics is considered essential

145 ine the electronic structure of the positive polaron in PTB7-type oligomers.

146 large polaron in two dimensions and a small polaron in the perpendicular direction.

147 er revealed a delocalization of the positive polaron in the polymer over about four monomeric units,

148 hus, the Belgian-waffle-shaped ferroelectric polaron in the three-dimensional LHP crystal structure i

149 ely weak absorption bands of the delocalized polaron in the visible and near-infrared spectral ranges

150 dimensional LHP crystal structure is a large polaron in two dimensions and a small polaron in the per

151 opic real-space characterization of magnetic polarons in a doped Fermi-Hubbard system, enabled by the

152 Here we demonstrate the emergence of Nagaoka polarons in a Hubbard system realized with strongly inte

153 lly delocalized electrons self-trap as small polarons in a localized state within a few hundred femto

154 Here we directly image itinerant spin polarons in a triangular-lattice Hubbard system realized

155 Here we create and investigate Fermi polarons in a two-dimensional, spin-imbalanced Fermi gas

156 tingly, we find the 1D-approach in push-pull polarons in agreement to the model, pointing at the stro

157 y consistent with the experiments describing polarons in anions, bipolarons in dianions of short olig

158 ty demonstrates the potential role played by polarons in charge transport in CH3NH3PbI3.

159 ianions of short oligomers, and side-by-side polarons in dianions of long oligomers, while results fr

160 to change the effective interactions between polarons in different sites from attractive to zero.

161 r mechanism is analogous to the formation of polarons in ionic solids and mediates attractions by fac

162 the visualization and manipulation of single polarons in monolayer CoCl(2), that are grown on HOPG su

163 Here we demonstrate electron polarons in pi-conjugated multiporphyrin arrays that fea

164 visualized exciton quenching induced by hole polarons in single-polymer chains in a device geometry.

165 also reveal that diffusion of supramolecular polarons in the nanowires repairs structural defects the

166 s the microscopic exploration of the fate of polarons in the pseudogap and 'bad metal' phases.

167 In contrast, polarons in the single-unit polymer emerge to a multi- d

168 revealing the dynamical formation of magnon-polarons in the time domain.

169 A toolbox for the quantum simulation of polarons in ultracold atoms is presented.

170 Moreover, the reduced acceptors form polarons in which the electron is shared over several mo

171 lized polarons is the probable mechanism for polaron-induced exciton quenching.

172 aps in a model charge-density-wave (CDW) and polaron insulator (TaSe(4))(2)I recently predicted to be

173 (F-V/SPS) was employed to study exciton-hole polaron interactions and interfacial charge transfer pro

174 A hairpins is consistent with formation of a polaron involving an estimated 3-4 A bases.

175 Exciton polaron is a hypothetical many-body quasiparticle that i

176 of the NIR and IR spectra indicates that the polaron is delocalized over 2-3 porphyrin units in the l

177 Theory predicts that this type of polaron is delocalized over approximately four bases in

178 barriers and formation energies, the MnOh2+ polaron is energetically preferred to the FeOh2+ polaron

179 a many-body system, such as a phonon bath, a polaron is formed.

180 The binding energy of the resulting polaron is somewhat larger than that obtained for the si

181 d state devices, and the formation of stable polarons is dependent on the tendency for deprotonation

182 agnetism, a microscopic observation of these polarons is lacking.

183 vation of the internal structure of magnetic polarons is lacking.

184 hat the polymer conformation hosting nascent polarons is not significantly different from that near e

185 Formation of polarons is supported by spectroscopy and electrical-con

186 tep "energy funneling" to trapped, localized polarons is the probable mechanism for polaron-induced e

187 ariety of polaronic species, including small polarons, large polarons, and charge density waves, and

188 gh the non-covalent interaction and generate polaron-like electronic states at the Co-Co center.

189 tance transport, such as thermally activated polaron-like hopping, that incorporate radical cation de

190 s inhibited by carrier trapping in transient polaron-like states.

191 lomb potential upon the formation of a large polaron, likely with ferroelectric-like local ordering.

192 -ultraviolet measurements suggest that small polaron localization is responsible for the ultrafast tr

193 c materials, we propose that a ferroelectric polaron localizes to planar boundaries of transient pola

194 r densities below the Mott density for large polarons (<= ~10(18) cm(-3) ) are focused on here.

195 r and quadratic excitation regimes of magnon-polarons, magnon-phonon hybrid quasiparticles.

196 The ferroelectric large polaron may form in other crystalline solids characteriz

197 more applicable to the lower mantle, a large polaron mechanism is suggested.

198 these boron clusters have conductivities and polaron mobilities roughly an order of magnitude higher

199 likely caused by changes in radical cation (polaron) mobility in the film.

200 It is shown that a previously proposed polaron model is successful in predicting NDR behavior,

201 s, we hypothesize a new defect-induced bound polaron model, which is generally applicable to other de

202 r DNA charge transport is distinguished from polaron models.

203 bed by the theoretical predictions for small polaron motion made by Holstein in 1959.

204 ing, and twinkling phenomena associated with polaron motion.

205 Here, we created Bose polarons near quantum criticality by immersing atomic im

206 -radiolysis results, the data show that each polaron occupies 4.5 +/- 0.5 fluorene units, most probab

207 longer conjugated systems; instead they are polarons occupying approximately four fluorene repeat un

208 Further cooling of hot polarons occurs on the 10(-10) s timescale, and this can

209 The polarons of F(3) and F(4) display sharp absorption bands

210 ers, an injected electron or hole can form a polaron on a DNA stack.

211 stabilizes the formation of a small electron polaron on the VO(4) tetrahedral site and leads to an en

212 ns revealed localizations of spin densities (polarons) on molecular wire radical cations.

213 ealed two bands attributable to formation of polarons, one in the visible region (pF+* at 580 nm, pF-

214 The spectral changes associated with polarons or imines were stable for at least several hour

215 The Polaron Pair (PP) model has been successfully applied to

216 e yields physically realistic values for the polaron pair decay rate, local hyperfine magnetic field

217 -state dynamics leading to the creation of a polaron pair have not been investigated yet.

218 om this investigation, we elucidate that the polaron pair is formed through ultrafast intra-layer hol

219 MHz, and the recombination rate for singlet polaron pair k(S,r) = (88 +/- 6) MHz.

220 reduced to the sub-milliTesla range and the Polaron Pair Model has been successful in explaining the

221 We demonstrate a fitting technique using the polaron pair model to the experimentally obtained MC and

222 Here, we present a novel method to suppress polaron pair recombination at the donor-acceptor domain

223 sity functional theory calculations in which polaron pair recombination rate is suppressed by resonan

224 als and charged acceptors, which convert the polaron pair spin state from singlet to triplet.

225 copic measurements clearly show an increased polaron pair yield for higher excess energies directly a

226 D D-A COFs, photoexcitation would generate a polaron pair, which is a precursor to free charge carrie

227 facial charge separation can occur through a polaron pair-derived hole transfer process in all-polyme

228 Geminate polaron-pair recombination directly to the triplet state

229 s reveal that 16F-6C6 has singlet biradical (polaron-pair) character in the doubly oxidized ground st

230 a significant population of charge-separated polaron pairs along the pi-stacking direction.

231 otovoltaic devices has been recombination of polaron pairs at the donor-acceptor domain interfaces.

232 or results from the intermolecular nature of polaron pairs in oligomers.

233 T, an additional nanosecond recombination of polaron pairs is observed in conjunction with an increas

234 time of about 3 ps mediated by photo-excited polaron pairs which has a markedly high quantum efficien

235 ly, in the oligomer we observe a lifetime of polaron pairs which is one order of magnitude longer.

236 k states, such as charge transfer states and polaron pairs, play an important role in the dynamics an

237 rlap, which likely act as precursors for the polaron pairs.

238 of all-polymer solar devices by manipulating polaron pairs.

239 f species such as charge-transfer states and polaron pairs.

240 the separation rates for singlet and triplet polaron pairs: k(S,s) = (44.59 +/- 0.01) MHz, k(T,s) = (

241 Here, we probe polaron photogeneration dynamics at polymer:fullerene he

242 ctra with two bands, better described as two polarons, possibly residing side-by-side in the F(n) cha

243 The Fermi polaron problem constitutes the extreme, but conceptuall

244 Despite the importance of the polaron problem for a wide range of physical systems, a

245 The polaron propagates through the crystal by diffusive jump

246 w class of polarons, the ferroelectric large polaron, proposed initially by Miyata and Zhu in 2018 (M

247 w class of polarons, the ferroelectric large polaron, proposed initially by Miyata and Zhu in 2018.

248 questions by exploring the rich landscape of polaron quasiparticles in TiO(2) via recently developed

249 ge over OLEDs in terms of minimizing exciton-polaron quenching.

250 ensis MR-1 leads to the disappearance of the polaron (radical cation) band at >900 nm and an increase

251 ve been proposed, such as formation of large polarons, Rashba effect, ferroelectric domains, and phot

252 sidering phonon renormalization in the small-polaron regime semiquantitatively reproduces the phonon

253 e an experimental method for determining the polaron relaxation energy in solid-state organic D-A ble

254 gth of the polarization-selective attractive polaron resonance(9,10), we find that when the Mott stat

255 e perovskite lattice is protected as a large polaron responsible for the remarkable photophysical pro

256 ron is energetically preferred to the FeOh2+ polaron, resulting in an asymmetric contribution of Mn/M

257 We further outline the molecular polaron's potential as a control element in phononic cir

258 ties, should distort its structure to form a polaron, Schuster and coworkers proposed that transport

259 The photogenerated charge excitations (polarons) show two-dimensional delocalization that resul

260 The experimentally observed polaron signatures are found to be consistent with an ef

261 Using a simple model for the polaron, similar to that used for conjugated polymers su

262 separated state involving PDI(-.) and a hole polaron site produced via hole migration along the SWNT

263 Computed values for polaron size and charge mobility are in excellent agreem

264 report the discovery of localized spin-orbit polarons (SOPs) with three-fold rotation symmetry nuclea

265 Large polaron spatial dimensions result from weak electron-lat

266 vances in organic spin response include long polaron spin-coherence times measured by optically detec

267 uniquely associated with the (6,5) SWNT hole polaron state; and (iv) demonstrate that modulation of s

268 y is attributed to the formation of extended polaron states as a result of local self-organization, i

269 ed, leading, for example, to the creation of polaron states in solids or hydration shells around prot

270 rst principles calculations unveil origin of polarons that are stabilized by cooperative electron-ele

271 opose that radical cations form self-trapped polarons that migrate by thermally activated hopping.

272 structural distortions, giving rise to small polarons that serves as a bottleneck for further Li-ion

273 For one type of polaron, the properties are determined by polarization o

274 is realized via the formation of a molecular polaron, the result of a Fano-type quantum interference,

275 rger than that obtained for the single-chain polaron, the result of each chain of the polaron being c

276 Here, we describe a new class of polarons, the ferroelectric large polaron, proposed init

277 Here, we describe a new class of polarons, the ferroelectric large polaron, proposed init

278 proach for analyzing a paradigmatic model of polarons, the so-called Frohlich model, and apply it to

279 ns, we study novel quasiparticles--repulsive polarons--the lifetime of which determines the possibili

280 ent on the tendency for deprotonation of the polaron to the imine.

281 t exciton fission via resonant tunnelling to polarons to be a ubiquitous feature of these systems.

282 uclear quantum effects through a variational polaron transformation of the high-frequency vibrational

283 evels can drive spectral shifts of SWNT hole polaron transitions as well as regulate SWNT valence and

284 Negative polaron transport is studied by using pulse radiolysis/t

285 Here, the small-polaron transport model is tested by using a spinel syst

286 homogeneous lattice distortions that provide polaron-type cage-to-cage electron hopping.

287 elding spectra with the two bands typical of polarons upon single reduction.

288 the slow diffusion of heat out of the large polaron volume due to the low thermal conductivity of LH

289 ber of different sequences, we find that the polaron wavefunction is predominantly on one of the two

290 w-temperature magnetism in terms of magnetic polarons, we are able to quantify the vibronic contribut

291 Detectable hole polarons were found to be immediately extracted by added

292 olarons: excess electrons reside as separate polarons when two or more electrons were injected.

293 onstrates the live formation and movement of polarons which is best suited for in situ solid-state Ra

294 A hole polaron, which consists of a metal-oxide distortion arou

295 facilitate the study of interactions between polarons, which may lead to collective behaviour, such a

296 olymeric semiconductors, charge carriers are polarons, which means that the excess charge deforms the

297 urity and BEC gives rise to the formation of polarons whose mutual interaction can be effectively tun

298 calized electron density, highly delocalized polarons with mobilities equivalent to films doped with

299 Bose-Einstein condensates (BECs) composed of polarons would be an advance because they would combine

300 uctural determination in NMR spectroscopy to polaron Zeeman splitting organic spintronics and organic