The Electronic Structure and Photoinduced Electron Transfer Rate of CdSe Quantum Dots on Single Crystal Rutile TiO2: Dependence on the Crystal Orientation of the Substrate

2016 ◽  
Vol 120 (4) ◽  
pp. 2047-2057 ◽  
Author(s):  
Taro Toyoda ◽  
Witoon Yindeesuk ◽  
Keita Kamiyama ◽  
Kenji Katayama ◽  
Hisayoshi Kobayashi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Electronic Structure ◽  
Single Crystal ◽  
Photoinduced Electron Transfer ◽  
Crystal Orientation ◽  
Transfer Rate ◽  
Cdse Quantum Dots ◽  
Electron Transfer Rate ◽  
Rutile Tio2

Efficient photoinduced electron transfer between C60/C70 and zinc octaethylporphyrin studied by nanosecond laser photolysis method

2000 ◽  
Vol 04 (06) ◽  
pp. 591-598 ◽  
Author(s):  
MOHAMED E. EL-KHOULY ◽  
MAMORU FUJITSUKA ◽  
OSAMU ITO
Keyword(s):  
Electron Transfer ◽  
Rate Constants ◽  
Photoinduced Electron Transfer ◽  
Transfer Rate ◽  
Transient Absorption ◽  
Laser Light ◽  
Solvent Polarity ◽  
Nanosecond Laser ◽  
Electron Transfer Rate ◽  
Absorption Bands

Photoinduced electron-transfer processes between C 60 or C 70 and zinc octaethylporphyrin ( ZnOEP ) have been studied in polar solvents with the nanosecond laser flash photolysis method, observing the transient absorption spectra in the visible and near-IR regions. By the predominant excitation of ZnOEP with 532 nm laser light the transient absorption bands of 3 ZnOEP * decayed, accompanied by the appearance of the transient absorption bands of [Formula: see text] and [Formula: see text]. By the predominant excitation of C 60 and C 70 with 610 nm laser light the decays of [Formula: see text] and [Formula: see text] were observed, accompanied by the appearance of [Formula: see text] and [Formula: see text]. The electron transfer rate constants (k et ) and the quantum yields (Φ et ) of [Formula: see text] and [Formula: see text] formation via 3 ZnOEP * and [Formula: see text] or [Formula: see text] have been evaluated. These values increase with the solvent polarity; in polar benzonitrile these values are higher than for other porphyrins such as zinc tetraphenylporphyrin. The back electron transfer rate constants were evaluated from the decays of [Formula: see text] and [Formula: see text], which also show a solvent polarity dependence.

Diffusion of Solvent-Separated Ion Pairs Controls Back Electron Transfer Rate in Graphene Quantum Dots

2018 ◽  
Vol 122 (28) ◽  
pp. 15819-15825 ◽  
Author(s):  
Ayan Bhattacharyya ◽  
Soumalya Mukherjee ◽  
Anju Chadha ◽  
Edamana Prasad
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Transfer Rate ◽  
Ion Pairs ◽  
Graphene Quantum Dots ◽  
Electron Transfer Rate ◽  
Back Electron Transfer

Donor−Acceptor Distance-Dependence of Photoinduced Electron-Transfer Rate in Flavoproteins

2007 ◽  
Vol 111 (20) ◽  
pp. 5694-5699 ◽  
Author(s):  
Fumio Tanaka ◽  
Haik Chosrowjan ◽  
Seiji Taniguchi ◽  
Noboru Mataga ◽  
Kyosuke Sato ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Transfer Rate ◽  
Electron Transfer Rate ◽  
Distance Dependence ◽  
Donor Acceptor

Change in Titania Structure from Amorphousness to Crystalline Increasing Photoinduced Electron-Transfer Rate in Dye-Titania System

2007 ◽  
Vol 111 (26) ◽  
pp. 9008-9011 ◽  
Author(s):  
Hiromasa Nishikiori ◽  
Wei Qian ◽  
Mostafa A. El-Sayed ◽  
Nobuaki Tanaka ◽  
Tsuneo Fujii
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Transfer Rate ◽  
Electron Transfer Rate

scholarly journals Controlling photoinduced electron transfer from PbS@CdS core@shell quantum dots to metal oxide nanostructured thin films

Nanoscale ◽  
2014 ◽  
Vol 6 (12) ◽  
pp. 7004-7011 ◽  
Author(s):  
H. Zhao ◽  
Z. Fan ◽  
H. Liang ◽  
G. S. Selopal ◽  
B. A. Gonfa ◽  
...  
Keyword(s):  
Thin Films ◽  
Quantum Dots ◽  
Electron Transfer ◽  
Metal Oxide ◽  
Photoinduced Electron Transfer ◽  
Transfer Rate ◽  
Shell Thickness ◽  
Wide Bandgap ◽  
Core Shell ◽  
Photoluminescence Lifetime

We investigate the photoelectron transfer rate from PbS@CdS core@shell QDs to wide bandgap mesoporous films using photoluminescence lifetime spectroscopy, which is strongly size, shell thickness and oxide dependent.

Adsorption and Electronic Structure of CdSe Quantum Dots on Single Crystal ZnO: A Basic Study of Quantum Dot-Sensitization System

2016 ◽  
Vol 120 (30) ◽  
pp. 16367-16376 ◽  
Author(s):  
Taro Toyoda ◽  
Witoon Yindeesuk ◽  
Keita Kamiyama ◽  
Shuzi Hayase ◽  
Qing Shen
Keyword(s):  
Quantum Dots ◽  
Electronic Structure ◽  
Quantum Dot ◽  
Single Crystal ◽  
Cdse Quantum Dots ◽  
Basic Study
Sign in / Sign up

Export Citation Format

Share Document