Electron Transfer Dynamics at p-GaAs/Liquid Interfaces

Y. Rosenwaks; B. R. Thacker; R. K. Ahrenkiel; A. J. Nozik

doi:10.1021/j100204a004

Electron Transfer Dynamics at p-GaAs/Liquid Interfaces

Y. Rosenwaks, B. R. Thacker, R. K. Ahrenkiel, A. J. Nozik

National Renewable Energy Laboratory

Research output: Contribution to journal › Article › peer-review

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Abstract

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 × 10⁵ to 10⁶ cm/s at 1 mM concentrations. These rates are 4-5 orders of magnitude faster than predicted by other workers.

Original language	American English
Pages (from-to)	10096-10098
Number of pages	3
Journal	Journal of Physical Chemistry
Volume	96
Issue number	25
DOIs	https://doi.org/10.1021/j100204a004 https://doi.org/10.1021/j100204a004
State	Published - 1992

NREL Publication Number

NREL/JA-453-5021

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abstract = "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 × 105 to 106 cm/s at 1 mM concentrations. These rates are 4-5 orders of magnitude faster than predicted by other workers.",

author = "Y. Rosenwaks and Thacker, {B. R.} and Ahrenkiel, {R. K.} and Nozik, {A. J.}",

year = "1992",

doi = "10.1021/j100204a004",

language = "American English",

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pages = "10096--10098",

journal = "Journal of Physical Chemistry",

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T1 - Electron Transfer Dynamics at p-GaAs/Liquid Interfaces

AU - Rosenwaks, Y.

AU - Thacker, B. R.

AU - Ahrenkiel, R. K.

AU - Nozik, A. J.

PY - 1992

Y1 - 1992

N2 - 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 × 105 to 106 cm/s at 1 mM concentrations. These rates are 4-5 orders of magnitude faster than predicted by other workers.

AB - 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 × 105 to 106 cm/s at 1 mM concentrations. These rates are 4-5 orders of magnitude faster than predicted by other workers.

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U2 - 10.1021/j100204a004

DO - 10.1021/j100204a004

M3 - Article

AN - SCOPUS:33751391378

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VL - 96

SP - 10096

EP - 10098

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

IS - 25

ER -

Electron Transfer Dynamics at p-GaAs/Liquid Interfaces

Abstract

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