NEW APPROACHES TO SOLAR-ENERGY CONVERSION USING SI/LIQUID JUNCTIONS

被引：4

作者：

FAJARDO, AM ^{[1
]}

KARP, CD ^{[1
]}

KENYON, CN ^{[1
]}

POMYKAL, KE ^{[1
]}

SHREVE, GA ^{[1
]}

TAN, MX ^{[1
]}

LEWIS, NS ^{[1
]}

机构：

[1] CALTECH,DIV CHEM & CHEM ENGN,PASADENA,CA 91125

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 1995年 / 38卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0927-0248(94)00228-2

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

New data are presented on efficient Si/liquid junction photoelectrochemical energy conversion devices. Additional information on the interfacial energetics, charge transfer kinetics, and stabilization factors of these interfaces has been obtained using a variety of chemical and electrical methods. Transconductance and Mott-Schottky measurements of the barrier height of n-Si/CH3OH-Me(2)Fc(+/0) contacts have demonstrated that the Si is in strong inversion, with a barrier height of 1.0 eV. Qualitative evidence for the validity of Marcus-Gerischer theory was obtained in measurements of the stabilization ratio as a function of the reorganization energy of the stabilizing redox agent. In addition, a new type of photoelectrochemical cell, in which charge carriers are collected primarily using diffusion gradients as opposed to drift, has shown high efficiency and unpinned electrical junction behavior in contact with various redox couples.

引用

页码：279 / 303

页数：25

共 53 条

[1] FLAT-BAND POTENTIAL DETERMINATION AND SURFACE MODIFICATIONS AT SEMICONDUCTOR LIQUID JUNCTIONS [J].