SURFACE RECOMBINATION VELOCITY-MEASUREMENTS AT THE SILICON-SILICON DIOXIDE INTERFACE BY MICROWAVE-DETECTED PHOTOCONDUCTANCE DECAY

被引:96
作者
STEPHENS, AW
ABERLE, AG
GREEN, MA
机构
[1] Centre for Photovoltaic Devices and Systems, University of New South Wales, Kensington
关键词
D O I
10.1063/1.357082
中图分类号
O59 [应用物理学];
学科分类号
摘要
This article presents measurements of the effective surface recombination velocity S(eff) at the Si-SiO2 interface of thermally oxidized p-type silicon wafers as a function of carrier injection level. The experiments cover a large range of injection levels and substrate resistivities, using the ''microwave-detected photoconductance decay'' method. A minimum in S(eff) has been observed experimentally. The experimental results for S(eff) are compared with calculations based on an extended Shockley-Read-Hall formalism which includes surface band bending effects due to oxide charges.
引用
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页码:363 / 370
页数:8
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