OPTICAL BAND-GAP AND BLUE-BAND EMISSION OF A LIINS2 SINGLE-CRYSTAL

被引：18

作者：

KURIYAMA, K ^{[1
]}

KATO, T ^{[1
]}

TAKAHASHI, A ^{[1
]}

机构：

[1] HOSEI UNIV,ION BEAM TECHNOL RES CTR,TOKYO 184,JAPAN

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.46.15518

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the optical band gap of LiInS2, which comprises the pseudowurtzite structure in an orthorhombic unit cell. The band-structure nature of LiInS2 is confirmed to be direct with a forbidden pp of 3.73 eV at 77 K. The fundamental absorption edge is shifted to the lower energy by 160 meV at 300 K. In the photoluminescence study at 13 K a blue-band emission is observed at around 460 nm (2.70 eV), which has been assigned as a donor (sulfur vacancy or its complex) -valence-band transition, but the band-edge emission corresponding to the optical band gap is not found.

引用

页码：15518 / 15519

页数：2

共 12 条

[1] STRUCTURAL PHASE-TRANSITIONS AND OPTICAL-ABSORPTION OF LIINSE2 UNDER PRESSURE [J].