ELECTRON-TRANSFER DYNAMICS AT P-GAAS/LIQUID INTERFACES

被引：42

作者：

ROSENWAKS, Y ^{[1
]}

THACKER, BR ^{[1
]}

AHRENKIEL, RK ^{[1
]}

NOZIK, AJ ^{[1
]}

机构：

[1] NATL RENEWABLE ENERGY LAB,GOLDEN,CO 80401

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1992年 / 96卷 / 25期

关键词：

D O I：

10.1021/j100204a004

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：

The rates of photoinduced electron transfer from sulfide-passivated p-GaAs to outer-sphere redox acceptors (ferricenium and cobalticinium) in acetonitrile have been measured using time-correlated single-photon-counting of photoluminescence decay. The characteristic time scales for electron transfer were found to be very fast, manifested by electron transfer velocities ranging from 2 X 10(5) to 10(6) cm/s at 1 mM concentrations. These rates are 4-5 orders of magnitude faster than predicted by other workers.

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页码：10096 / 10098

页数：3

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