0D Cs3Cu2X5 (X = I, Br, and Cl) Nanocrystals: Colloidal Syntheses and Optical Properties

被引：186

作者：

Luo, Zhishan ^{[1
,2
]}

Li, Qian ^{[1
,2
]}

Zhang, Liming ^{[1
]}

Wu, Xiaotong ^{[1
]}

Tan, Li ^{[1
]}

Zou, Chao ^{[1
]}

Liu, Yejing ^{[1
]}

Quan, Zewei ^{[1
]}

机构：

[1] Southern Univ Sci & Technol SUSTech, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China

[2] Southern Univ Sci & Technol SUSTech, Acad Adv Interdisciplinary Studies, Shenzhen Engn Res Ctr Frontier Mat Synth High Pre, Shenzhen 518055, Guangdong, Peoples R China

来源：

SMALL | 2020年 / 16卷 / 03期

基金：

中国国家自然科学基金;

关键词：

colloidal syntheses; lead-free metal halides; low-dimensional materials; nanocrystals; optical properties; METAL HALIDE PEROVSKITES; PHOTOLUMINESCENCE; TRANSFORMATIONS; CHALLENGES; RB; CS;

D O I：

10.1002/smll.201905226

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

0D lead-free metal halide nanocrystals (NCs) are an emerging class of materials with intriguing optical properties. Herein, colloidal synthetic routes are presented for the production of 0D Cs3Cu2X5 (X = I, Br, and Cl) NCs with orthorhombic structure and well-defined morphologies. All these Cs3Cu2X5 NCs exhibit broadband blue-green photoluminescence (PL) emissions in the range of 445-527 nm with large Stokes shifts, which are attributed to their intrinsic self-trapped exciton (STE) emission characteristics. The high PL quantum yield of 48.7% is obtained from Cs3Cu2Cl5 NCs, while Cs3Cu2I5 NCs exhibit considerable air stability over 45 days. Intriguingly, as X is changed from I to Br and Cl, Cs3Cu2X5 NCs exhibit a continuous redshift of emission peaks, which is contrary to the blueshift in CsPbX3 perovskite NCs.

引用

页数：5

共 50 条

[1] Molecular Iodine for a General Synthesis of Binary and Ternary Inorganic and Hybrid Organic - Inorganic Iodide Nanocrystals [J].

Akkerman, Quinten A. ;

Martinez-Sarti, Laura ;

Goldoni, Luca ;

Imran, Muhammad ;

Baranov, Dmitry ;

Bolink, Henk J. ;

Palazon, Francisco ;

Manna, Liberato .

CHEMISTRY OF MATERIALS, 2018, 30 (19) :6915-6921

[2] Genesis, challenges and opportunities for colloidal lead halide perovskite nanocrystals [J].

Akkerman, Quinten A. ;

Raino, Gabriele ;

Kovalenko, Maksym V. ;

Manna, Liberato .

NATURE MATERIALS, 2018, 17 (05) :394-405

[3]

[Anonymous], 2017, ANGEW CHEM INT ED

[4] The Making and Breaking of Lead-Free Double Perovskite Nanocrystals of Cesium Silver-Bismuth Halide Compositions [J].

Bekenstein, Yehonadav ;

Dahl, Jakob C. ;

Huang, Jianmei ;

Osowiecki, Wojciech T. ;

Swabeck, Joseph K. ;

Chan, Emory M. ;

Yang, Peidong ;

Alivisatos, A. Paul .

NANO LETTERS, 2018, 18 (06) :3502-3508

[5] Highly Emissive Self-Trapped Excitons in Fully Inorganic Zero-Dimensional Tin Halides [J].

Benin, Bogdan M. ;

Dirin, Dmitry N. ;

Morad, Viktoriia ;

Woerle, Michael ;

Yakunin, Sergii ;

Raino, Gabriele ;

Nazarenko, Olga ;

Fischer, Markus ;

Infante, Ivan ;

Kovalenko, Maksym V. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2018, 57 (35) :11329-11333

[6] All-inorganic perovskite nanocrystal scintillators [J].

Chen, Qiushui ;

Wu, Jing ;

Ou, Xiangyu ;

Huang, Bolong ;

Almutlaq, Jawaher ;

Zhumekenov, Ayan A. ;

Guan, Xinwei ;

Han, Sanyang ;

Liang, Liangliang ;

Yi, Zhigao ;

Li, Juan ;

Xie, Xiaoji ;

Wang, Yu ;

Li, Ying ;

Fan, Dianyuan ;

Teh, Daniel B. L. ;

All, Angelo H. ;

Mohammed, Omar F. ;

Bakr, Osman M. ;

Wu, Tom ;

Bettinelli, Marco ;

Yang, Huanghao ;

Huang, Wei ;

Liu, Xiaogang .

NATURE, 2018, 561 (7721) :88-93

[7] Colloidal Synthesis and Optical Properties of All-Inorganic Low-Dimensional Cesium Copper Halide Nanocrystals [J].

Cheng, Pengfei ;

Sun, Lei ;

Feng, Lu ;

Yang, Songqiu ;

Yang, Yang ;

Zheng, Daoyuan ;

Zhao, Yang ;

Sang, Youbao ;

Zhang, Ruiling ;

Wei, Donghui ;

Deng, Weiqiao ;

Han, Keli .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2019, 58 (45) :16087-16091

[8] NEW INSIGTHS ON THE KINETICS AND MECHANISM OF THE ELECTROCHEMICAL OXIDATION OF DICLOFENAC IN NEUTRAL AQUEOUS MEDIUM [J].

Cid-Ceron, M. M. ;

Guzman-Hernandez, D. S. ;

Ramirez-Silva, M. T. ;

Galano, A. ;

Romero-Romo, M. ;

Palomar-Pardave, M. .

ELECTROCHIMICA ACTA, 2016, 199 :92-98

[9] Challenges for Density Functional Theory [J].

Cohen, Aron J. ;

Mori-Sanchez, Paula ;

Yang, Weitao .

CHEMICAL REVIEWS, 2012, 112 (01) :289-320

[10] Colloidal Nanocrystals of Lead-Free Double-Perovskite (Elpasolite) Semiconductors: Synthesis and Anion Exchange To Access New Materials [J].

Creutz, Sidney E. ;

Crites, Evan N. ;

De Siena, Michael C. ;

Gamelin, Daniel R. .

NANO LETTERS, 2018, 18 (02) :1118-1123

← 1 2 3 4 5 →