MAGNETOABSORPTION OF THE LOWEST EXCITON IN PEROVSKITE-TYPE COMPOUND (CH3NH3)PBI3

被引：375

作者：

HIRASAWA, M ^{[1
]}

ISHIHARA, T ^{[1
]}

GOTO, T ^{[1
]}

UCHIDA, K ^{[1
]}

MIURA, N ^{[1
]}

机构：

[1] UNIV TOKYO,INST SOLID STATE PHYS,TOKYO 106,JAPAN

来源：

PHYSICA B | 1994年 / 201卷

关键词：

D O I：

10.1016/0921-4526(94)91130-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Magnetoabsorption spectra of (CH3NH3)PbI3 are investigated in the Faraday configuration up to 40 T at 4.2 K. The compound consists of three-dimensional networks of corner-sharing octahedra [PbI6]4-. The Zeeman splitting and the diamagnetic shift are observed, and the effective g-factor and the diamagnetic coefficient are 1.2 +/- 0.1 and (2.7 +/- 0.1) x 10(-6) eV/T2, respectively. From the diamagnetic shift, the Bohr radius, the binding energy and the reduced mass of the exciton are estimated to be 28 angstrom, 37 meV and 0.12m(o), respectively. The exciton in (CH3NH3)PbI3 is one of typical Wannier-type excitons with large radius, which is in contrast with the exciton in (C10H21NH3)2PbI4, consisting of two-dimensional networks of [PbI6]4-.

引用

页码：427 / 430

页数：4

共 9 条

[1]

CALABRESE J, 1991, J AM CHEM SOC, V113, P2329

[2] MAGNETOREFLECTION OF THE LOWEST EXCITON IN A LAYERED PEROVSKITE-TYPE COMPOUND (C10H21NH3)2PBI4 [J].