Single-Molecule Interfacial Electron Transfer in Donor-Bridge-Nanoparticle Acceptor Complexes

被引：22

作者：

Jin, Shengye ^{[2
]}

Snoeberger, Robert C., III ^{[1
]}

Issac, Abey ^{[2
]}

Stockwell, David ^{[2
]}

Batista, Victor S. ^{[1
]}

Lian, Tianquan ^{[2
]}

机构：

[1] Yale Univ, Dept Chem, New Haven, CT 06520 USA

[2] Emory Univ, Dept Chem, Atlanta, GA USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2010年 / 114卷 / 45期

基金：

美国国家科学基金会;

关键词：

DENSITY-FUNCTIONAL THEORY; TOTAL-ENERGY CALCULATIONS; RE-BIPYRIDYL COMPLEXES; INJECTION DYNAMICS; POLYPYRIDYL COMPLEXES; NANOCRYSTALLINE SNO2; EXCITATION-ENERGIES; CHARGE SEPARATION; TRANSFER KINETICS; RHODAMINE-B;

D O I：

10.1021/jp911662g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photoinduced interfacial electron transfer (IET) in sulforhodamine B (SRhB) aminosilane-I in oxide (SnO2) nanoparticle donor-bridge-acceptor complexes has been studied on a single molecule and ensemble average level On both SnO2 and ZrO2, the sum of single molecule fluorescence decays agree with the ensemble average results suggesting complete sampling of molecules under single molecule conditions Shorter fluorescence lifetime on SnO2 than on ZrO2 is observed and attributed to JET from SRhB to SnO2 Single molecule lifetimes fluctuate with time and vary among different molecules, suggesting both static and dynamic IET heterogeneity in this system Computational modeling of the complexes shows a distribution of molecular conformation leading to a distribution of electronic coupling strengths and El rates It is likely that the conversion between these conformations led to the fluctuation of ET rate and fluorescence lifetime on the single molecule level

引用

页码：14309 / 14319

页数：11

共 91 条

[1] Ultrafast electron transfer at the molecule-semiconductor nanoparticle interface
Anderson, NA
Lian, TQ
[J]. ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 2005, 56 : 491 - 519
[2] Bridge-assisted ultrafast interfacial electron transfer to nanocrystalline SnO2 thin films
Anderson, NA
Ai, X
Chen, DT
Mohler, DL
Lian, TQ
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (51) : 14231 - 14239
[3] Ultrafast electron transfer dynamics from molecular adsorbates to semiconductor nanocrystalline thin films
Asbury, JB
Hao, E
Wang, YQ
Ghosh, HN
Lian, TQ
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (20) : 4545 - 4557
[4] Bridge length-dependent ultrafast electron transfer from Re polypyridyl complexes to nanocrystalline TiO2 thin films studied by femtosecond infrared spectroscopy
Asbury, JB
Hao, EC
Wang, YQ
Lian, TQ
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (50) : 11957 - 11964
[5] Derivation of force field parameters for SnO2-H2O surface systems from plane-wave density functional theory calculations
Bandura, AV
Sofo, JO
Kubicki, JD
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (16) : 8386 - 8397
[6] Basche T., 1997, SINGLE MOL OPTICAL D
[7] Ultrafast studies of electron injection in Ru dye sensitized SnO2 nanocrystalline thin film
Bauer, C
Boschloo, G
Mukhtar, E
Hagfeldt, A
[J]. INTERNATIONAL JOURNAL OF PHOTOENERGY, 2002, 4 (01) : 17 - 20
[8] Treatment of electronic excitations within the adiabatic approximation of time dependent density functional theory
Bauernschmitt, R
Ahlrichs, R
[J]. CHEMICAL PHYSICS LETTERS, 1996, 256 (4-5) : 454 - 464
[9] DENSITY-FUNCTIONAL THERMOCHEMISTRY .3. THE ROLE OF EXACT EXCHANGE
BECKE, AD
[J]. JOURNAL OF CHEMICAL PHYSICS, 1993, 98 (07) : 5648 - 5652
[10] PREPARATION AND PHOTOELECTROCHEMICAL CHARACTERIZATION OF THIN SNO(2) NANOCRYSTALLINE SEMICONDUCTOR-FILMS AND THEIR SENSITIZATION WITH BIS(2,2'-BIPYRIDINE)(2,2'-BIPYRIDINE-4,4'-DICARBOXYLIC ACID)RUTHENIUM(II) COMPLEX
BEDJA, I
HOTCHANDANI, S
KAMAT, PV
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (15) : 4133 - 4140

← 1 2 3 4 5 6 7 8 9 10 →