Vibrational and optical properties of a one-dimensional organic-inorganic crystal [C6H14N]PbI3

被引：26

作者：

Elleuch, S. ^{[1
]}

Abid, Y. ^{[1
]}

Mlayah, A. ^{[2
]}

Boughzala, H. ^{[3
]}

机构：

[1] Fac Sci Sfax, Appl Phys Lab, Sfax 3018, Tunisia

[2] Univ Toulouse 3, CNRS, Ctr Elaborat Mat & Etud Struct, F-31055 Toulouse, France

[3] Inst Preparatoire Etud Ingenieur Nabeul, Lab Mat & Cristallochim, Mrezga 8000, Nabeul, Tunisia

来源：

JOURNAL OF RAMAN SPECTROSCOPY | 2008年 / 39卷 / 07期

关键词：

organic/inorganic perovskites; Raman scattering; infrared absorption; photoluminescence; diffuse reflectance; UV-Vis absorption; ab initio calculations;

D O I：

10.1002/jrs.1904

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Self-assembled organic-inorganic [C6H14N]PbI3 crystals were synthesized. The crystal structure consists of one-dimensional semiconductor chains formed by infinite Pbl6 face-sharing octahedra aligned along the a-axis. The organic cations are linked to the inorganic chains by N-H... I hydrogen bonds and act as insulator barriers. The vibrational properties of [C6H14N]PbI3 were studied using polarized Raman scattering and infrared (IR) absorption. The observed Raman and IR spectral features were identified by comparison with the vibrational properties of homologous compounds and with the vibrational wavenumbers calculated using the ab initio PM3 method. Moreover, the photoluminescence and diffuse reflectance of [C6H14N]PbI3 single crystals, along with the UV-Vis absorption of spin- coated films, were measured. A strong green-blue luminescence due to radiative recombinations of 1D excitons is observed. The Stokes shift is estimated at 70 meV. Copyright 0 2008 John Wiley & Sons, Ltd.

引用

页码：786 / 792

页数：7

共 39 条

[1] Luminescent decay kinetics in a quasi-one-dimensional crystal, C5H10NH2PbI3 [J].