Aqueous Synthesis of Methylammonium Lead Halide Perovskite Nanocrystals

被引：99

作者：

Geng, Chong ^{[1
]}

Xu, Shu ^{[1
]}

Zhong, Haizheng ^{[2
]}

Rogach, Andrey L. ^{[3
,4
]}

Bi, Wengang ^{[1
]}

机构：

[1] Hebei Univ Technol, Tianjin Key Lab Elect Mat & Devices, Sch Elect & Informat Engn, 5340 Xiping Rd, Tianjin 300401, Peoples R China

[2] Beijing Inst Technol, Beijing Key Lab Nanophoton & Ultrafine Optoelect, Sch Mat Sci & Engn, 5 Zhongguancun South St, Beijing 100081, Peoples R China

[3] City Univ Hong Kong, Dept Mat Sci & Engn, 83 Tat Chee Ave, Kowloon, Hong Kong, Peoples R China

[4] City Univ Hong Kong, CFP, 83 Tat Chee Ave, Kowloon, Hong Kong, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2018年 / 57卷 / 31期

基金：

中国国家自然科学基金;

关键词：

aqueous synthesis; lead halide complexes; nanomaterials; perovskite phases; pH; SOLAR-CELLS DEGRADATION; QUANTUM DOTS; HIGHLY LUMINESCENT; LIGHT; EFFICIENCY; PERFORMANCE; FABRICATION; MECHANISMS; STABILITY; PHOTOLUMINESCENCE;

D O I：

10.1002/anie.201802670

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Methylammonium lead halide perovskite nanocrystals offer attractive optoelectronic properties but suffer from fast degradation in the presence of water. In contradiction to this observation, we demonstrate the possibility of a direct aqueous synthesis of CH3NH3PbX3 (X=Br or Cl/Br) nanocrystals through the reaction between the lead halide complex and methylamine when the pH is maintained in the range of 0-5. Under these synthetic conditions, the positively charged surface of the perovskite nanocrystals and the proper ionic balance help to prevent their decomposition in water. Additional surface capping with organic amine ligands further improves the photoluminescence quantum yield of the perovskite nanocrystals to values close to 40%, ensures their stability under ambient conditions for several months, and their photoluminescence performance under continuous 0.1Wmm(-2) 405nm light irradiation for over 250hours.

引用

页码：9650 / 9654

页数：5

共 67 条

[1]

[Anonymous], 2016, ANGEW CHEM-GER EDIT

[2]

Aristidou N., 2015, ANGEW CHEM, V127, P8326, DOI DOI 10.1002/ANGE.201503153

[3] The Role of Oxygen in the Degradation of Methylammonium Lead Trihalide Perovskite Photoactive Layers [J].

Aristidou, Nicholas ;

Sanchez-Molina, Irene ;

Chotchuangchutchaval, Thana ;

Brown, Michael ;

Martinez, Luis ;

Rath, Thomas ;

Haque, Saif A. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2015, 54 (28) :8208-8212

[4] Improving efficiency and stability of perovskite solar cells with photocurable fluoropolymers [J].

Bella, Federico ;

Griffini, Gianmarco ;

Correa-Baena, Juan-Pablo ;

Saracco, Guido ;

Gratzel, Michael ;

Hagfeldt, Anders ;

Turri, Stefano ;

Gerbaldi, Claudio .

SCIENCE, 2016, 354 (6309) :203-206

[5] Evaluating Nanoparticle Sensor Design for Intracellular pH Measurements [J].

Benjaminsen, Rikke V. ;

Sun, Honghao ;

Henriksen, Jonas R. ;

Christensen, Nynne M. ;

Almdal, Kristoffer ;

Andresen, Thomas L. .

ACS NANO, 2011, 5 (07) :5864-5873

[6] Organometal halide perovskite solar cells: degradation and stability [J].

Berhe, Taame Abraha ;

Su, Wei-Nien ;

Chen, Ching-Hsiang ;

Pan, Chun-Jern ;

Cheng, Ju-Hsiang ;

Chen, Hung-Ming ;

Tsai, Meng-Che ;

Chen, Liang-Yih ;

Dubale, Amare Aregahegn ;

Hwang, Bing-Joe .

ENERGY & ENVIRONMENTAL SCIENCE, 2016, 9 (02) :323-356

[7]

Brenner TM, 2016, NAT REV MATER, V1, DOI 10.1038/natrevmats.2015.7

[8] Collective Molecular Mechanisms in the CH3NH3Pbl3 Dissolution by Liquid Water [J].

Caddeo, Claudia ;

Saba, Maria Ilenia ;

Meloni, Simone ;

Filippetti, Alessio ;

Mattoni, Alessandro .

ACS NANO, 2017, 11 (09) :9183-9190

[9]

Chen J N., 2017, ANGEW CHEM INT EDIT, V129, P2430, DOI DOI 10.1002/ANGE.201611794

[10] A Ternary Solvent Method for Large-Sized Two-Dimensional Perovskites [J].

Chen, Junnian ;

Gan, Lin ;

Zhuge, Fuwei ;

Li, Huiqiao ;

Song, Jizhong ;

Zeng, Haibo ;

Zhai, Tianyou .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2017, 56 (09) :2390-2394

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