Effect of sodium and oxygen doping on the conductivity of CuInS2 thin films

被引：9

作者：

Scheer, R

Luck, I

Kanis, M

Kurps, R

Krüger, D

机构：

[1] Hahn Meitner Inst Kernforsch Berlin GmbH, D-14109 Berlin, Germany

[2] Inst Halbleitertphys, D-15230 Frankfurt, Germany

来源：

THIN SOLID FILMS | 2000年 / 361卷

关键词：

chalcopyrite; CuInS2; doping; oxidation; conductivity;

D O I：

10.1016/S0040-6090(99)00843-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Doping of Cu-poor CuInS2 thin films by sodium and oxygen species, such as O-2 and O, was investigated by SIMS and conductivity measurements. Increased oxygen concentration is found for Na-doping. The SIMS signals of CuO and CuOS were detected. They coincide for O-doped films but differ for Na and O-2 doped films. This is interpreted as due to grain boundary effects. Na doping lends to an increase in lateral conductivity. This finding supports the model previously proposed by [L. Kronik, D. Cahen, H.W. Schock, Adv. Mater. 10(1998)31] that oxygen plays a major role in Na doping. The presented results. furthermore, propose oxygen single doping for chalcopyrite films. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：468 / 472

页数：5