Room-Temperature Doping of CsPbBr3 Nanocrystals with Aluminum

被引：10

作者：

Duong, Tuan M. ^{[1
]}

Aldakov, Dmitry ^{[1
]}

Pouget, Stephanie ^{[2
]}

Ling, Wai Li ^{[3
]}

Dang, Le Si ^{[4
]}

Nogues, Gilles ^{[4
]}

Reiss, Peter ^{[1
]}

机构：

[1] Univ Grenoble Alpes, CEA, CNRS, IRIG,SyMMES,STEP, F-38000 Grenoble, France

[2] Univ Grenoble Alpes, CEA, IRIG, MEM,SGX, F-38000 Grenoble, France

[3] Univ Grenoble Alpes, CEA, CNRS, IBS, F-38000 Grenoble, France

[4] Univ Grenoble Alpes, CNRS, Inst Neel, F-38000 Grenoble, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2022年 / 13卷 / 20期

关键词：

HALIDE PEROVSKITE NANOCRYSTALS; INDUCED PHASE SEGREGATION; DEPENDENT PHOTOLUMINESCENCE; OPTICAL-PROPERTIES; QUANTUM DOTS; SPECTRA; IMPACT;

D O I：

10.1021/acs.jpclett.2c01021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

B-site doping is an emerging strategy for tuning the emission wavelength of cesium lead halide ABX(3) nanocrystals. We present a simple method for the postsynthetic doping of CsPbBr3 nanocrystals with aluminum at room temperature by exposing them to a solution of AlBr3 in dibromomethane. Despite the much smaller ionic radius of Al3+ compared to that of Pb2+, nominal doping levels in a range from 8.1% to 24.3% were obtained when increasing the Al/Pb feed ratio from 1 to 4.5. Al3+ introduction leads to a hypsochromic shift of the photoluminescence (PL) emission of the CsPbBr3 nanocrystals. The PL peak position is highly stable over at least 6 months and tunable in a range of 510 to 480 nm by increasing the doping level. Structural analyses revealed a linear correlation between the PL energy and the lattice parameter with a slope of -1.96 eV/A.

引用

页码：4495 / 4500

页数：6

共 33 条

[21] Postsynthesis Mn-doping in CsPbI3 nanocrystals to stabilize the black perovskite phase [J].

Mir, Wasim J. ;

Swarnkar, Abhishek ;

Nag, Angshuman .

NANOSCALE, 2019, 11 (10) :4278-4286

[22] Nanocrystals of Cesium Lead Halide Perovskites (CsPbX3, X = Cl, Br, and I): Novel Optoelectronic Materials Showing Bright Emission with Wide Color Gamut [J].

Protesescu, Loredana ;

Yakunin, Sergii ;

Bodnarchuk, Maryna I. ;

Krieg, Franziska ;

Caputo, Riccarda ;

Hendon, Christopher H. ;

Yang, Ruo Xi ;

Walsh, Aron ;

Kovalenko, Maksym V. .

NANO LETTERS, 2015, 15 (06) :3692-3696

[23] Photoinduced Mn doping in cesium lead halide perovskite nanocrystals [J].

Qiao, Tian ;

Parobek, David ;

Dong, Yitong ;

Ha, Eunsang ;

Son, Dong Hee .

NANOSCALE, 2019, 11 (12) :5247-5253

[24] Low-Temperature Photoluminescence Studies of CsPbBr3 Quantum Dots [J].

Shinde, Aparna ;

Gahlaut, Richa ;

Mahamuni, Shailaja .

JOURNAL OF PHYSICAL CHEMISTRY C, 2017, 121 (27) :14872-14878

[25]

Tamayo J., 2022, J PHOTOCHEM PHOTOBIO, V10

[26] Long-term ambient air-stable cubic CsPbBr3 perovskite quantum dots using molecular bromine [J].

Thapa, Surakcha ;

Bhardwaj, Karishma ;

Basel, Siddhant ;

Pradhan, Sajan ;

Eling, Charlotte J. ;

Adawi, Ali M. ;

Bouillard, Jean-Sebastien G. ;

Stasiuk, Graeme J. ;

Reiss, Peter ;

Pariyar, Anand ;

Tamang, Sudarsan .

NANOSCALE ADVANCES, 2019, 1 (09) :3388-3391

[27] Light and Electrically Induced Phase Segregation and Its Impact on the Stability of Quadruple Cation High Bandgap Perovskite Solar Cells [J].

The Duong ;

Mulmudi, Hemant Kumar ;

Wu, YiLiang ;

Fu, Xiao ;

Shen, Heping ;

Peng, Jun ;

Wu, Nandi ;

Nguyen, Hieu T. ;

Macdonald, Daniel ;

Lockrey, Mark ;

White, Thomas P. ;

Weber, Klaus ;

Catchpole, Kylie .

ACS APPLIED MATERIALS & INTERFACES, 2017, 9 (32) :26859-26866

[28] Electronic structures of lead iodide based low-dimensional crystals [J].

Umebayashi, T ;

Asai, K ;

Kondo, T ;

Nakao, A .

PHYSICAL REVIEW B, 2003, 67 (15)

[29] Highly Emissive Divalent-Ion-Doped Colloidal CsPb1-xMxBr3 Perovskite Nanocrystals through Cation Exchange [J].

van der Stam, Ward ;

Geuchies, Jaco J. ;

Altantzis, Thomas ;

van den Bos, Karel H. W. ;

Meeldijk, Johannes D. ;

Van Aert, Sandra ;

Bals, Sara ;

Vanmaekelbergh, Daniel ;

Donega, Celso de Mello .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (11) :4087-4097

[30] Pressure-Induced Structural and Optical Properties of Organometal Halide Perovskite-Based Formamidinium Lead Bromide [J].

Wang, Lingrui ;

Wang, Kai ;

Zou, Bo .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2016, 7 (13) :2556-2562

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