ライフサイエンスコーパス: methylammonium

1 (n)I(3n+1) (n = 2-4, BA= butylammonium, MA = methylammonium).

2 magnitude greater than that of MAPbI3 (MA = methylammonium).

3 onium uptake but reduced capacity to take up methylammonium.

4 alyzed had defects in accumulation of [(14)C]methylammonium.

5 s, the mutants were unable to transport [14C]methylammonium.

6 lica substrate and predict the adsorption of methylammonium.

7 vity to ammonium and to the transport analog methylammonium.

8 d accumulation of the ammonium analog [(14)C]methylammonium, a weak base, led to the proposal that me

9 lts are in accord with the view that Amt and methylammonium/ammonium permease proteins increase the r

10 lammonium transport B (AmtB) protein [called methylammonium/ammonium permeases (MEP)] that was observ

11 f enteric bacteria and their homologues, the methylammonium/ammonium permeases of Saccharomyces cerev

12 istant to oxidative stress relative to their methylammonium analogs.

13 cumulates much larger amounts of both [(14)C]methylammonium and [(14)C]methylglutamine in a washed ce

14 Methylammonium and ammonium (MEP) permeases of Saccharom

15 Large inward NH(4)(+) currents and sizable methylammonium and dimethylammonium currents were observ

16 cells so far have been obtained mainly with methylammonium and formamidinium mixed cations.

17 We find that hydrogen bonding between methylammonium and I(2) promotes triiodide formation, wh

18 ormance solar cells based on mixtures of Cs, methylammonium, and formamidinium.

19 nfer resistance to the toxic ammonium analog methylammonium are in AMT4 and a high proportion of spon

20 of formula MAPb(Br(x)I(1-x))(3), where MA is methylammonium, are of great interest for optoelectronic

21 ns (Cs (cesium), FA (formamidinium), and MA (methylammonium)) at room temperature.

22 c properties including better stability than methylammonium-based counterparts.

23 Our approach reveals that methylammonium-based perovskites form densely packed, an

24 o strategies to boost stability of sensitive methylammonium-based Sn-Pb perovskite films and devices

25 n 0D metal-organic hybrid materials based on methylammonium bismuth halide (CH3NH3)3Bi2I9.

26 t time aryl-acetylene-based (4-ethynylphenyl)methylammonium (BMAA) and buta-1,3-diyne-1,4-diylbis(4,1

27 xciton quenching through a small increase in methylammonium bromide (MABr) molar proportion, and we s

28 A simple methylammonium bromide (MABr) treatment via spin-coating

29 ence band maximum (VBM)) of device-relevant, methylammonium bromide (MABr)-doped, formamidinium lead

30 uires spraying the material of interest with methylammonium bromide and observing whether photolumine

31 Poly(N-(3-dimethyl(ferrocenyl)methylammonium bromide)propyl acrylamide) (pFcAc) was gr

32 I(10) (x = 0-1, BA is n-butylammonium, MA is methylammonium) by the incorporation of a large EA catio

33 Sn(0.5)Pb(0.5)I(3) (FA = formamidinium, MA = methylammonium), can exhibit ideal band gaps of 1.27-1.3

34 We propose to replace the widely used methylammonium cation (CH3NH3(+)) by alternative molecul

35 electrogenic and transport the ammonium and methylammonium cation with high specificity.

36 The absence of methylammonium cations in single layer perovskite accoun

37 alternating ordering of the guanidinium and methylammonium cations in the interlayer space (ACI).

38 The application of methylammonium cations makes flexible perovskite solar m

39 ing the MOCP precursor solutions with excess methylammonium cations, the MOCPs form via a dynamic com

40 ra resulting from the rotation of aspherical methylammonium cations.

41 ctivity of (3'-trifluoromethoxybiphenyl-4-yl)methylammonium chloride (8) exceeded that of phenobarbit

42 ray structure of the receptor complexed with methylammonium chloride illuminates the basis of the mol

43 e that the readily accessible (biphenyl-4-yl)methylammonium chlorides (compound class B) exhibited a

44 present findings suggest that replacing the methylammonium component in CH3 NH3 PbI3 to a species wi

45 of gap states is either suppressed when the methylammonium concentration in mixed cation films is re

46 We close by demonstrating the methylammonium-containing perovskite solar cells showing

47 m)ethyl] methane-thiosulfonate (MTSET), both methylammonium-containing thiol-modifying reagents with

48 We confirmed that accumulation of [14C]methylammonium depends on its conversion to gamma-N-meth

49 ral phases and dipolar dynamics in the mixed methylammonium/dimethylammonium MA(1-x)DMA(x)PbBr(3) hyb

50 esulting from an interaction of charges with methylammonium dipoles.

51 nd 3D MA(0.5)FA(0.5)Pb(0.5)Sn(0.5)I(3) (MA = methylammonium, FA = formamidinium) perovskite composite

52 .7x)(X)(3-0.4x) (A = MA, FA; X = Br, I; MA = methylammonium, FA = formamidinium, en = ethylenediammon

53 Pb(Br(0.4) I(0.6) )(3) perovskite films (MA: methylammonium, FA: formamidinium) are studied under sol

54 (3), FAPbBr(3), CsPbI(3), and CsPbBr(3) (MA, methylammonium; FA(+), formamidinium), are used to synth

55 systematically tuning the cesium ratio of a methylammonium-free 1.8-electron volt mixed-halide perov

56 e p-i-n structure perovskite modules made of methylammonium-free formamidinium cesium lead iodide (FA

57 Methylammonium-free PSCs also benefit from a PNR interla

58 The methylammonium group is caged by three aromatic side cha

59 g, particularly through employing additional methylammonium halide over the stoichiometric ratio for

60 leaching for the selective release of excess methylammonium halides, we achieved full and even covera

61 airs of the amino acid analogues acetate and methylammonium in aqueous NaCl solutions of concentratio

62 uired for transport of the ammonium analogue methylammonium in washed cells, only in Saccharomyces ce

63 ed by increased ammonium-induced and reduced methylammonium-induced currents.

64 its volume expansion and fast reaction with methylammonium iodide (MAI)/formamidinium iodide (FAI) (

65 Methylammonium iodide is introduced in the fullerene lay

66 respect to decomposition to lead iodide and methylammonium iodide, even in the absence of ambient ai

67 and is ineffective when replacing MABr with methylammonium iodide.

68 polybases to induce the deprotonation of its methylammonium ions (MA(+)).

69 ture of the tetragonal structure is that the methylammonium ions do not sit centrally in the A-site c

70 We have confirmed that methylammonium is not metabolized in the yeast S. cerevi

71 electric field applied to single crystals of methylammonium lead bromide (CH3 NH3 PbBr3 ) is varied,

72 Here, we synthesize single crystals of methylammonium lead bromide (CH3NH3PbBr3), characterise

73 ere, perovskite single-crystal FETs based on methylammonium lead bromide are studied and device insta

74 e of nanocrystal pinning, highly luminescent methylammonium lead bromide films are used to produce st

75 strate spin-polarized carrier injection into methylammonium lead bromide films from metallic ferromag

76 ing a small amount of neutral benzylamine to methylammonium lead bromide, which induces a proton tran

77 an der Waals (vdW) solids are realized using methylammonium lead halide (CH3 NH3 PbI3 ) as the organi

78 deposition of thick and continuous films of methylammonium lead halide (MAPbX(3); X = Br, I) from di

79 resence of a density of states in the gap of methylammonium lead halide films processed from DMSO-con

80 b-10 fs resolution pump-probe experiments on methylammonium lead halide perovskite films are describe

81 Methylammonium lead halide perovskite solar cells contin

82 Methylammonium lead halide perovskite-based solar cells

83 ystal nanowires, nanorods, and nanoplates of methylammonium lead halide perovskites (CH3NH3PbI3 and C

84 Methylammonium lead halide perovskites are attracting in

85 The discussion focuses principally on methylammonium lead iodide (CH(3)NH(3)PbI(3) or MAPbI(3)

86 Organic-inorganic hybrid perovskites such as methylammonium lead iodide (CH(3)NH(3)PbI(3)) are game-c

87 rst time on a hole conductor-free mesoscopic methylammonium lead iodide (CH(3)NH(3)PbI(3)) perovskite

88 Thin films of methylammonium lead iodide (CH(3)NH(3)PbI(3), MAPI) are

89 e activation energies for ionic migration in methylammonium lead iodide (CH3NH3PbI3) are derived from

90 Metal halide perovskites such as methylammonium lead iodide (CH3NH3PbI3) are generating g

91 ention is given to the prototypical compound methylammonium lead iodide (CH3NH3PbI3) due to the prepo

92 Hybrid halide perovskites such as methylammonium lead iodide (CH3NH3PbI3) exhibit unusuall

93 ct visualization of hot-carrier migration in methylammonium lead iodide (CH3NH3PbI3) thin films by ul

94 Cesium methylammonium lead iodide (Cs(x) MA(1-x) PbI(3) ) nanoc

95 n the absorption properties of formamidinium/methylammonium lead iodide (FA(x)MA(1-x)PbI(3), x = 0 to

96 roelectric (PFE) polymers are doped into the methylammonium lead iodide (MAPbI(3) ) layer and/or inse

97 skite thin films coated by QA, PSCs based on methylammonium lead iodide (MAPbI(3) ) showed significan

98 ide salts, apply them as capping layers onto methylammonium lead iodide (MAPbI(3)) films, age them un

99 engineering of low-temperature blade-coated methylammonium lead iodide (MAPbI(3)) perovskite films.

100 hancing hole extraction from polycrystalline methylammonium lead iodide (MAPbI(3)) perovskite to the

101 ully demonstrate the potential of the hybrid Methylammonium lead iodide (MAPbI(3)) perovskite-based s

102 rformance perovskite photovoltaic absorbers, methylammonium lead iodide (MAPbI3) and formamidinium le

103 Here we show that intrinsic doping surges in methylammonium lead iodide (MAPbI3) crystals as a respon

104 area, orientationally pure crystalline (OPC) methylammonium lead iodide (MAPbI3) hybrid perovskite fi

105 The PSCs fabricated with LBSO and methylammonium lead iodide (MAPbI3) show a steady-state

106 Hybrid perovskites, especially methylammonium lead iodide (MAPbI3), exhibit excellent s

107 Methylammonium lead iodide (MAPI) cells of the design FT

108 e when compared to the typical 3D perovskite methylammonium lead iodide (MAPI); direct evidence for t

109 uddlesden-Popper perovskite, n-butylammonium methylammonium lead iodide (nBA-MAPI), compared to that

110 trochemical (PEC) solar cell based on p-type methylammonium lead iodide (p-MeNH3PbI3) perovskite with

111 during the two-step sequential deposition of methylammonium lead iodide and formamidinium lead iodide

112 Using methylammonium lead iodide and formamidinium lead iodide

113 e structures and report polymorphs found for methylammonium lead iodide and formamidinium lead iodide

114 Three-dimensional perovskites like methylammonium lead iodide are determined to be ferroela

115 Here we show that iodide ions in the methylammonium lead iodide migrate via interstitial site

116 Methylammonium lead iodide perovskite (MAPbI3 ), a proto

117 s exhibit a higher PLQY than the standard 3D methylammonium lead iodide perovskite although this is a

118 Methylammonium lead iodide perovskite can make high-effi

119 Methylammonium lead iodide perovskite has attracted cons

120 ) as an interfacial layer between TiO(2) and methylammonium lead iodide perovskite is probed to reduc

121 een a range of different polymer films and a methylammonium lead iodide perovskite layer was used as

122 figure of merit of radiative efficiency for Methylammonium Lead Iodide perovskite solar cells and, t

123 Here we turn to polycrystalline methylammonium lead iodide perovskite, which has emerged

124 t carrier scattering with optical phonons in methylammonium lead iodide perovskite.

125 comparable to those of the state-of-the-art methylammonium lead iodide perovskites, favorable effect

126 n the thickness direction (for example, from methylammonium lead iodide, MAPbI(3), to MAPb(0.5)Sn(0.5

127 Here, we demonstrate that by assembling a methylammonium lead tri-bromide perovskite single crysta

128 , that is, greater than 20%, normally employ methylammonium lead tri-iodide with a sub-optimal bandga

129 -the-art narrowband photodetectors made from methylammonium lead trihalide perovskite single crystals

130 he morphology and luminescence properties of methylammonium lead trihalide perovskite thin films.

131 Single crystals of methylammonium lead trihalide perovskites (MAPbX3; MA =

132 o characterize the ionic defect landscape in methylammonium lead triiodide (MAPbI(3)) perovskites in

133 cells made with HaPs, especially tetragonal methylammonium lead triiodide (MAPbI3).

134 The spectral response of the methylammonium lead triiodide single crystal solar cells

135 Thin methylammonium lead triiodide single crystals with tuned

136 e nanoscale photoconductivity imaging on two methylammonium lead triiodide thin films with different

137 /- 0.1 meV are identified in polycrystalline methylammonium lead triiodide, which mainly stay at grai

138 anging the surface chemistry and suppressing methylammonium loss.

139 , 2D perovskites contain a monocation [e.g., methylammonium (MA(+) ) or formamidinium (FA(+) )].

140 BX(3), where A is a monovalent cation (e.g., methylammonium (MA(+)), Cs(+)), B is the divalent metal

141 Specifically, we investigate methylammonium (MA(+)), formamidinium (FA(+)), and guani

142 and 4-(aminomethyl)piperidinium) (4AMP); A = methylammonium (MA) and formamidinium (FA)).

143 vealed that the local environment around the methylammonium (MA) cation in MAPbBr3 hybrid perovskite

144 acancies (H(v)) at both N and C atoms of the methylammonium (MA) cation in MAPbI(3) efficiently passi

145 lations to study the dynamics of the organic methylammonium (MA) cation orientation in a range of pur

146 phases by empirically alloying with cesium, methylammonium (MA) cations, or both.

147 rough the effect of isotopic labeling of the methylammonium (MA) component on the dielectric permitti

148 is used as an additive, and eliminated when methylammonium (MA) is replaced with cesium or formamidi

149 cs in hybrid mixed-cation formamidinium (FA)/methylammonium (MA) lead halide perovskites.

150 , demonstrated on the formamidinium (FA) and methylammonium (MA) mixed-cation perovskite system FA(1-

151 o PbBr(6) octahedra, butylammonium (BA), and methylammonium (MA) molecule tilting motion that leads t

152 kites (2FBZ)(2)(A)(n-1)Pb(n)I(3n+1) with A = methylammonium (MA) or formamidinium (FA) and n = 2, 3.

153 prepared suspensions of APbBr(3) (A = Cs or methylammonium (MA)) type perovskite colloids (ca. 2-100

154 obutylammonium (c-C4A), combining these with methylammonium (MA), and found that the middle cation, c

155 e-cation solid alloys of formamidinium (FA), methylammonium (MA), cesium, and rubidium lead halides w

156 A)Pb(2)I(7) where BA = butylammonium and A = methylammonium (MA), formamidinium (FA), dimethylammoniu

157 (A' = 4-(aminomethyl)pyridinium (4AMPY), A = methylammonium (MA), n = 1-4).

158 rochemical impedance spectroscopy (EIS) with methylammonium (MA)-, formamidinium (FA)-, and MA(x)FA(1

159 and grain anchoring to successfully prepare methylammonium (MA)-free and phase-pure stable a-FAPbI(3

160 ciency (PCE) of triple-A cation (cesium (Cs)/methylammonium (MA)/formaminidium (FA)) perovskite solar

161 xation dynamics in LHP NCs with cesium (Cs), methylammonium (MA, CH(3)NH(3)(+)), and formamidinium (F

162 A(3) Ru(2) X(9) (X=Br) based upon the use of methylammonium (MA=CH(3) NH(3) (+) ) on the perovskite A

163 ts, with the general formula AM(II)I(3) (A = methylammonium, MA; M(II) = Sr, Sm, Eu, and A = formamid

164 Methylammonium-mediated phase-evolution behavior of FA1-

165 he reaction of superoxide (O2 (-) ) with the methylammonium moiety of the perovskite absorber.

166 )MA(n-1)Sn(n)I(3n+1) (BA, butylammonium; MA, methylammonium; n = 1, 3, 5) superlattice by chemical ep

167 PEA: R/S-beta-methylphenylethylammonium; MA: methylammonium; n = 1-3).

168 Accumulation of methylammonium occurs within seconds and appears to refl

169 Excess methylammonium oleate from the reaction mixture in the M

170 ng in isolated ASn(x)Pb(1-x)I(3) (where A is methylammonium or a mixture of formamidinium and cesium)

171 emperatures, increasing organic cation (e.g. methylammonium) or decreasing inorganic cation (e.g. ces

172 The ammonium transporter (AMT)/methylammonium permease (MEP)/Rhesus glycoprotein (Rh) f

173 iated by the ubiquitous ammonium transporter/methylammonium permease/rhesus protein (Amt/Mep/Rh) fami

174 Two genes encoding methylammonium permeases (MEPs) were identified from eac

175 thylammonium transport proteins (also called methylammonium permeases), are gas channels for NH(3), w

176 the four commonly studied formamidinium and methylammonium perovskites, HC(NH2)2PbI3, HC(NH2)2PbBr3,

177 , subsequent energy-dependent utilization of methylammonium precludes its use in assessing active tra

178 oup both hydrogen bonds and ion pairs to the methylammonium proton.

179 Methylammonium recognition involves two aromatic residue

180 AMT4 gene, and the insert cosegregated with methylammonium resistance in genetic crosses.

181 All 16 spontaneous methylammonium-resistant mutants that we analyzed had de

182 tions with the organic part of the material (methylammonium), resulting in the MAPbI3 decomposition a

183 The binding of charged N-methylammonium species to the functionalized SWCNTs was

184 Further browning in AS and methylammonium sulfate seeds was triggered by cloud even

185 amine, tetraethylammonium (TEA), tri-n-butyl-methylammonium (TBuMA), and N'-methylnicotinamide (NMN).

186 ixed-organic-cation perovskite formamidinium methylammonium tin iodide ( FAMASnI3 ) as an absorber la

187 ng so-called "hollow" ethylenediammonium and methylammonium tin iodide ({en}MASnI3) perovskite as abs

188 sed on alloyed perovskite solid solutions of methylammonium tin iodide and its lead analogue (CH3NH3S

189 ects on the crystallization of the lead-free methylammonium tin triiodide (CH3NH3SnI3) perovskite fil

190 romide, which induces a proton transfer from methylammonium to benzylamine and enables crystallizatio

191 cteria, however, ATP-dependent conversion of methylammonium to gamma-N-methylglutamine by glutamine s

192 ma-1 mutant of N. crassa largely metabolized methylammonium to methylglutamine.

193 ranscribed and Chlamydomonas is sensitive to methylammonium toxicity.

194 The ammonium/methylammonium transport (Amt) proteins of enteric bacte

195 function of three homologues of the ammonium/methylammonium transport B (AmtB) protein [called methyl

196 heir only known paralogues, the ammonium and methylammonium transport proteins (also called methylamm

197 members of the Rh superfamily, the ammonium/methylammonium transport proteins, are bidirectional cha

198 lock for alpha7 nAChRs, i.e., 3alpha-azido-N-methylammonium tropane, was used for additional in situ

199 d with different degrees of defect in [(14)C]methylammonium uptake.

200 activity, as judged by measurements of [14C]-methylammonium uptake.

201 ansitions and optical behavior of MAPbI3 (MA=methylammonium) using in situ synchrotron X-ray diffract

202 employing an infrared pump pulse tuned to a methylammonium vibration, we observe slow, nanosecond-lo

203 Concentration of methylammonium was most easily studied in strains that l

204 xchange experiments on MA(2)CrCl(4) (MA(+) = methylammonium), which instead show 3D exchange.

205 =2), AMP = 4-(aminomethyl)piperidinium; MA = methylammonium), which shows an out-of-plane polarizatio

206 Notably, mixed-cation (formamidinium-methylammonium) wide-bandgap perovskite films are prone

207 d or greater) defects in the accumulation of methylammonium, with little accompanying defect in the i