Compositional gradients and impurity distributions in CuInSe2 thin-film solar cells studied by atom probe tomography

被引：18

作者：

Choi, Pyuck-Pa ^{[1
]}

Cojocaru-Miredin, Oana ^{[1
]}

Wuerz, Roland ^{[2
]}

机构：

[1] Max Planck Inst Eisenforsch GmbH, D-040237 Dusseldorf, Germany

[2] Zentrum Sonnenenergie & Wasserstoff Forsch Baden, D-70565 Stuttgart, Germany

来源：

SURFACE AND INTERFACE ANALYSIS | 2012年 / 44卷 / 11-12期

关键词：

thin-film solar cells; atom probe tomography; POLYCRYSTALLINE CU(IN; GA)SE-2; SODIUM; HETEROJUNCTION; PERFORMANCE;

D O I：

10.1002/sia.4948

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 present study is about the characterization of CuInSe2 thin-film solar cells using atom probe tomography. Elemental distributions, in particular compositional gradients and impurity segregation at internal interfaces, have been determined at the sub-nanometer scale. Direct evidence of impurity (Cd, Na, and O) segregation at CuInSe2 grain boundaries is given. Possibly occurring point defects are discussed with respect to their influence on the electronic properties and the efficiency of the solar cells. Copyright (C) 2012 John Wiley & Sons, Ltd.

引用

页码：1386 / 1388

页数：3

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