ライフサイエンスコーパス: internal conversion

1 ground-state potential energy surface after internal conversion.

2 ormation of the proper geometry for reactive internal conversion.

3 tions in unstacked bases decay via ultrafast internal conversion.

4 ted state, which may account for the greater internal conversion.

5 bination of excited-state autodetachment and internal conversion.

6 y forbidden excited state, populated through internal conversion.

7 solvation time (300 femtoseconds) after the internal conversion [140 femtoseconds for (H2O)35-] was

8 ited-state deactivation processes due to the internal conversion and intersystem crossing at the Fran

9 11)-10(12) s(-1)), which is competitive with internal conversion and/or vibrational relaxation, as co

10 The first is the subpicosecond internal conversion channel first characterized in 2000.

11 spectroscopy measurements, that reveal this internal conversion dynamics to be slightly slower in ch

12 We achieve internal conversion efficiencies of 61.5%, significantly

13 The best internal conversion efficiency achieved for the fabricat

14 it voltage, the maximum output power and the internal conversion efficiency decreased when the temper

15 using a similar waveguide, which attains 34% internal conversion efficiency.

16 s as well as beta(-) particles and Auger and internal conversion electrons useful for radiotherapy.

17 the porphyrin monomer (intersystem crossing, internal conversion, fluorescence).

18 The relaxation pathway involves a rapid internal conversion followed by slow ground-state coolin

19 C) occurs in hundreds of femtoseconds, while internal conversion (IC) in the triplet manifold is slow

20 s attributed to s-state electrons just after internal conversion in a nonequilibrated solvent environ

21 occur at the local site, including ultrafast internal conversion in hundreds of femtoseconds, vibrati

22 mophore is not responsible for the ultrafast internal conversion in the adenine and guanine monomers.

23 ogether with quantum yields of fluorescence, internal conversion, intersystem crossing, and singlet o

24 The short-lived excited state suggests that internal conversion, intersystem crossing, and/or dissoc

25 The pipi*/npi* internal conversion is difficult to investigate, as most

26 that extrapolate linearly with 1/n toward an internal conversion lifetime of 50 fs in bulk water.

27 s a 50-femtosecond eaq-(p)-->eaq-(s(dagger)) internal conversion lifetime.

28 Thus, we theorize that internal conversion of S(1A) to a vibrationally hot S(0)

29 olution, such as protonated tryptophan, full internal conversion of the absorbed 248-nm photon occurs

30 fission in pentacene proceeds through rapid internal conversion of the photoexcited state into a dar

31 ct ion distributions that correspond to full internal conversion of the photon energy (loss of approx

32 oximately 11 water molecules) and to partial internal conversion of the photon energy and emission of

33 Internal conversion of the S(1) excited state to the gro

34 urfaces, but it is unknown how the ultrafast internal conversion of two nearly degenerate states of T

35 decay with concomitant s-state repopulation (internal conversion) on time scales ranging from 180 to

36 and cooling of hot polyyne chains, following internal conversion (over approximately 5 ps).

37 ution permits direct observation of the fast internal conversion process for both the pyrene and nitr

38 To understand this nonstatistical internal conversion process, these results are compared

39 having no bridging group is attributed to an internal conversion process.

40 ain excitonic state, directly accessible via internal conversion processes.

41 ticular, the short dephasing times and rapid internal conversion rates are major obstacles.

42 edge, and unambiguously show that pipi*/npi* internal conversion takes place within (60 +/- 30) fs.

43 broad absorption may be explained by a rapid internal conversion that makes this specific base pair a

44 ole forms in the n orbital during pipi*/npi* internal conversion, the absorption spectrum at the hete

45 tic energy transfer steps resemble molecular internal conversion through a nested intermolecular funn

46 has a lifetime of ca. 8 ps before undergoing internal conversion to S(1).

47 Furthermore, we found that suppression of internal conversion to the dark S1 state by restricting

48 t absorption signals show that subpicosecond internal conversion to the electronic ground state takes

49 but decayed on a subpicosecond time scale by internal conversion to the electronic ground state.

50 ions suggest that these channels result from internal conversion to the ground electronic state follo

51 time constant and is trifurcated to give (1) internal conversion to the ground state ( approximately

52 This excited state branches between internal conversion to the ground state and formation of

53 r high degree of photostability to ultrafast internal conversion to the ground state and low triplet

54 PhEtyCbl undergoes internal conversion to the ground state with near unit q

55 /- 20 ps and to decay exclusively (>95%) via internal conversion to the ground state, with no evidenc

56 hway is essentially barrierless and involves internal conversion to the ground-state surface via coni

57 rine S(2) state (<4 ps), in competition with internal conversion to the S(1) state.

58 Following internal conversion, vibrationally highly excited ground

59 for an efficient nonadiabatic S(1) --> S(0) internal conversion, which is followed by a fast ground-

60 ultrafast enhanced intersystem crossing and internal conversion with tau approximately = 2 ps to giv

61 usters with n > or = 25 decay exclusively by internal conversion, with relaxation times that extrapol

62 -bond torsion as an important contributor to internal conversion within this important class of chrom