CH3NH3PbI3 perovskite single crystals: surface photophysics and their interaction with the environment

被引：190

作者：

Grancini, G. ^{[1
]}

D'Innocenzo, V. ^{[1
,2
]}

Dohner, E. R. ^{[3
]}

Martino, N. ^{[1
,2
]}

Kandada, A. R. Srimath ^{[1
]}

Mosconi, E. ^{[4
]}

De Angelis, F. ^{[4
]}

Karunadasa, H. I. ^{[3
]}

Hoke, E. T. ^{[5
]}

Petrozza, A. ^{[1
]}

机构：

[1] Ist Italiano Tecnol, Ctr Nano Sci & Technol Polimi, I-20133 Milan, Italy

[2] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy

[3] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

[4] CNR ISTM, Computat Lab Hybrid Organ Photovolta CLHYO, I-06123 Perugia, Italy

[5] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

来源：

CHEMICAL SCIENCE | 2015年 / 6卷 / 12期

关键词：

METHYLAMMONIUM LEAD IODIDE; CH(3)NH(3)PBL(3); DEGRADATION; EFFICIENCY; INTERPLAY; IMPACT; LIGHT;

D O I：

10.1039/c5sc02542g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Here we identify structural inhomogeneity on a micrometer scale across the surface of a CH3NH3PbI3 perovskite single crystal. At the crystal edge a local distortion of the crystal lattice is responsible for a widening of the optical bandgap and faster photo-carrier recombination. These effects are inherently present at the edge of the crystal, and further enhanced upon water intercalation, as a preliminary step in the hydration of the perovskite material.

引用

页码：7305 / 7310

页数：6

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