Effects of the Defects on the Thermoelectric Properties of Cu-In-Te Chalcopyrite-Related Compounds

被引：15

作者：

Kosuga, Atsuko ^{[1
]}

Higashine, Ryosuke ^{[1
]}

Plirdpring, Theerayuth ^{[2
]}

Matsuzawa, Mie ^{[1
]}

Kurosaki, Ken ^{[2
]}

Yamanaka, Shinsuke ^{[2
]}

机构：

[1] Res Org 21st Century, Nanosci & Nanotechnol Res Ctr, Sakai, Osaka 5998570, Japan

[2] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2012年 / 51卷 / 12期

关键词：

OPTICAL CHARACTERIZATION;

D O I：

10.1143/JJAP.51.121803

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We prepared and investigated the thermoelectric properties of Cu0.4InTe2 at 310-710 K. The crystal structure of Cu0.4InTe2 was identical to that of CuIn3Te5, namely a tetragonal structure, space group P (4) over bar 2c, known as an ordered defect chalcopyrite. This structure is different from that of CuInTe2, which has a normal chalcopyrite structure. In comparison with CuInTe2, Cu0.4InTe2 showed inferior thermoelectric properties because a degradation in its electrical conductivity outweighed a reduction in its thermal conductivity. The maximum dimensionless figure of merit of Cu0.4InTe2 was 0.17 at 702 K. (C) 2012 The Japan Society of Applied Physics

引用

页数：4

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