Mechanical properties of APbX 3 (A = Cs or CH3NH3; X = I or Br) perovskite single crystals

被引：297

作者：

Rakita, Yevgeny ^{[1
]}

Cohen, Sidney R. ^{[2
]}

Kedem, Nir Klein ^{[1
]}

Hodes, Gary ^{[1
]}

Cahen, David ^{[1
]}

机构：

[1] Weizmann Inst Sci, Mat & Interfaces Dept, IL-76100 Rehovot, Israel

[2] Weizmann Inst Sci, Dept Chem Res Support, IL-76100 Rehovot, Israel

来源：

MRS COMMUNICATIONS | 2015年 / 5卷 / 04期

基金：

以色列科学基金会;

关键词：

CUBIC-TETRAGONAL TRANSITION; LEAD-IODIDE; PHASE-TRANSITIONS; ALKALI-METAL; HARDNESS; MODULUS; GROWTH; NANOINDENTATION; TEMPERATURE; CLATHRATE;

D O I：

10.1557/mrc.2015.69

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The remarkable optoelectronic and especially photovoltaic performance of hybrid organic-inorganic perovskite (HOIP) materials drives efforts to connect materials properties to this performance. From nano-indentation experiments on solution-grown single crystals we obtain elastic modulus and nano-hardness values of APbX(3) (A = Cs, CH3NH3; X = I, Br). The Young's moduli are similar to 14, 19.5, and 16 GPa, for CH3NH3PbI3, CH3NH3PbBr3, and CsPbBr3, respectively, lending credence to theoretically calculated values. We discuss the possible relevance of our results to suggested self-healing, ion diffusion, and ease of manufacturing. Using our results, together with literature data on elastic moduli, we classified HOIPs amongst the relevant material groups, based on their elastomechanical properties.

引用

页码：623 / 629

页数：7

共 50 条

[1]

[Anonymous], CRC HDB LASER SCI S2

[2]

Ashby MF., 2011, MAT SELECTION MECH D

[3] Defect migration in methylammonium lead iodide and its role in perovskite solar cell operation [J].

Azpiroz, Jon M. ;

Mosconi, Edoardo ;

Bisquert, Juan ;

De Angelis, Filippo .

ENERGY & ENVIRONMENTAL SCIENCE, 2015, 8 (07) :2118-2127

[4] Non-ferroelectric nature of the conductance hysteresis in CH3NH3PbI3 perovskite-based photovoltaic devices [J].

Beilsten-Edmands, J. ;

Eperon, G. E. ;

Johnson, R. D. ;

Snaith, H. J. ;

Radaelli, P. G. .

APPLIED PHYSICS LETTERS, 2015, 106 (17)

[5] Effect of pressure on octahedral distortions in RCrO3 (R=Lu, Tb, Gd, Eu, Sm): the role of R-ion size and its implications [J].

Bhadram, Venkata Srinu ;

Swain, Diptikanta ;

Dhanya, R. ;

Polentarutti, Maurizio ;

Sundaresan, A. ;

Narayana, Chandrabhas .

MATERIALS RESEARCH EXPRESS, 2014, 1 (02)

[6] Bulk crystal growth of hybrid perovskite material CH3NH3PbI3 [J].

Dang, Yangyang ;

Liu, Yang ;

Sun, Youxuan ;

Yuan, Dongsheng ;

Liu, Xiaolong ;

Lu, Weiqun ;

Liu, Guangfeng ;

Xia, Haibing ;

Tao, Xutang .

CRYSTENGCOMM, 2015, 17 (03) :665-670

[7] MICRO-INDENTATION HARDNESS VARIATION AS A FUNCTION OF COMPOSITION FOR POLYCRYSTALLINE SOLUTIONS IN SYSTEMS PBS/PBTE PBSE/PBTE AND PBS/PBSE [J].

DARROW, MS ;

WHITE, WB ;

ROY, R .

JOURNAL OF MATERIALS SCIENCE, 1969, 4 (04) :313-&

[8] Electron-hole diffusion lengths > 175 μm in solution-grown CH3NH3PbI3 single crystals [J].

Dong, Qingfeng ;

Fang, Yanjun ;

Shao, Yuchuan ;

Mulligan, Padhraic ;

Qiu, Jie ;

Cao, Lei ;

Huang, Jinsong .

SCIENCE, 2015, 347 (6225) :967-970

[9] Ionic transport in hybrid lead iodide perovskite solar cells [J].

Eames, Christopher ;

Frost, Jarvist M. ;

Barnes, Piers R. F. ;

O'Regan, Brian C. ;

Walsh, Aron ;

Islam, M. Saiful .

NATURE COMMUNICATIONS, 2015, 6

[10] Theory of Hydrogen Migration in Organic-Inorganic Halide Perovskites [J].

Egger, David A. ;

Kronik, Leeor ;

Rappe, Andrew M. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2015, 54 (42) :12437-12441

← 1 2 3 4 5 →