Controlled Substitution of Chlorine for Iodine in Single-Crystal Nanofibers of Mixed Perovskite MAPbI3-xClx

被引：22

作者：

Zhang, Haihua ^{[1
]}

Liao, Qing ^{[1
]}

Wang, Xuedong ^{[2
]}

Hu, Ke ^{[1
]}

Yao, Jiannian ^{[1
,2
]}

Fu, Hongbing ^{[1
,2
,3
]}

机构：

[1] Capital Normal Univ, Dept Chem, Beijing Key Lab Opt Mat & Photon Devices, Beijing 100048, Peoples R China

[2] Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China

[3] Tianjin Univ, Dept Chem, Tianjin Key Lab Mol Optoelect Sci, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China

来源：

SMALL | 2016年 / 12卷 / 28期

基金：

中国国家自然科学基金;

关键词：

ORGANOMETAL HALIDE PEROVSKITES; HYBRID SOLAR-CELLS; PHOTOVOLTAIC APPLICATIONS; SOLUTION GROWTH; LOW-COST; LIGHT; CRYSTALLIZATION; NANOWIRES; DIFFUSION; TRANSPORT;

D O I：

10.1002/smll.201601201

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Longer carrier diffusion length and improved power conversion efficiency have been reported for thin-film solar cell of organolead mixed-halide perovskite MAPbI(3-x)Cl(x) in comparison with MAPbI(3). Instead of substituting I in the MAPbI(3) lattice, Cl-incorporation has been shown to mainly improve the film morphology of perovskite absorber. Well-defined crystal structure, adjustable composition (x), and regular morphology, remains a formidable task. Herein, a facile solution-assembly method is reported for synthesizing single-crystalline nanofibers (NFs) of tetragonal-lattice MAPbI(3-x)Cl(x) with the Cl-content adjustable between 0 <= x <= 0.75, leading to a gradual blueshift of the absorption and photoluminescence maxima from x = 0 to 0.75. The photoresponsivity (R) of MAPbI(3) NFs keeps almost unchanging at a value independent of the white-light illumination intensity (P). In contrast, R of MAPbI(3-x)Cl(x) NFs decreases rapidly with increasing both the x and P values, indicating Cl-substitution increases the recombination traps of photogenerated free electrons and holes. This study provides a model system to examine the role of extrinsic Cl ions in both perovskite crystallography and optoelectronic properties.

引用

页码：3780 / 3787

页数：8

共 31 条

[11] Nanowires of Methylammonium Lead Iodide (CH3NH3Pbl3) Prepared by Low Temperature Solution-Mediated Crystallization [J].

Horvath, Endre ;

Spina, Massimo ;

Szekrenyes, Zsolt ;

Kamaras, Katalin ;

Gaal, Richard ;

Gachet, David ;

Forro, Laszlo .

NANO LETTERS, 2014, 14 (12) :6761-6766

[12]

Jeon NJ, 2014, NAT MATER, V13, P897, DOI [10.1038/NMAT4014, 10.1038/nmat4014]

[13] Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells [J].

Kojima, Akihiro ;

Teshima, Kenjiro ;

Shirai, Yasuo ;

Miyasaka, Tsutomu .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (17) :6050-+

[14]

Konstantatos G, 2010, NAT NANOTECHNOL, V5, P391, DOI [10.1038/NNANO.2010.78, 10.1038/nnano.2010.78]

[15] Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites [J].

Lee, Michael M. ;

Teuscher, Joel ;

Miyasaka, Tsutomu ;

Murakami, Takurou N. ;

Snaith, Henry J. .

SCIENCE, 2012, 338 (6107) :643-647

[16] Perovskite Microdisk Microlasers Self-Assembled from Solution [J].

Liao, Qing ;

Hu, Ke ;

Zhang, Haihua ;

Wang, Xuedong ;

Yao, Jiannian ;

Fu, Hongbing .

ADVANCED MATERIALS, 2015, 27 (22) :3405-3410

[17] New Light on an Old Story: Perovskites Go Solar [J].

Lotsch, Bettina V. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (03) :635-637

[18]

Manser JS, 2014, NAT PHOTONICS, V8, P737, DOI [10.1038/NPHOTON.2014.171, 10.1038/nphoton.2014.171]

[19]

Park N., 2014, 6 INT C HYBR ORG PHO

[20] Organometal Perovskite Light Absorbers Toward a 20% Efficiency Low-Cost Solid-State Mesoscopic Solar Cell [J].

Park, Nam-Gyu .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2013, 4 (15) :2423-2429

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