Determination of the built-in electric field near contacts to polycrystalline CuInSe2:: Probing local charge transport properties by photomixing

被引：0

作者：

Tang, Y ^{[1
]}

Dong, SR ^{[1
]}

Sun, GS ^{[1
]}

Braunstein, R ^{[1
]}

von Roedern, B ^{[1
]}

机构：

[1] Princeton Elect Syst Inc, Princeton, NJ 08543 USA

来源：

NCPV PHOTOVOLTAICS PROGRAM REVIEW: PROCEEDINGS OF THE 15TH CONFERENCE | 1999年 / 462卷

关键词：

D O I：

暂无

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：

The built-in electric field in polycrystalline CuInSe2 (CIS) near gold co-planar contacts was quantitatively revealed for the first time by the photomixing technique. A He-Ne laser beam was focused locally on the CTS sample near one of its contact. While both de dark and photo-currents showed ohmic behavior, the high frequency ac current was non-zero for zero applied de bias, which reveals a built-in electric field of similar to 1000V/cm The capability of the photomixing technique to probe local charge transport properties is expected to be very useful for, e.g., the quantitative evaluation of the quality of ohmic contacts and the investigation of electric field induced p-n junction formation in CIS and related materials.

引用

页码：109 / 113

页数：5

共 37 条

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