Stabilization of Organic-Inorganic Perovskite Layers by Partial Substitution of Iodide by Bromide in Methylammonium Lead Iodide

被引：49

作者：

Ruess, Raffael ^{[1
]}

Benfer, Felix ^{[1
]}

Boecher, Felix ^{[1
]}

Stumpp, Martina ^{[1
]}

Schlettwein, Derck ^{[1
]}

机构：

[1] Univ Giessen, Inst Angew Phys, Heinrich Buff Ring 16, D-35392 Giessen, Germany

来源：

CHEMPHYSCHEM | 2016年 / 17卷 / 10期

关键词：

halides; hydrates; lead; perovskites; thin films; SOLAR-CELLS; HALIDE PEROVSKITES; CH3NH3PBI3; PEROVSKITE; PERFORMANCE; EFFICIENCY; STABILITY; FILMS; TEMPERATURES; DEGRADATION; EMERGENCE;

D O I：

10.1002/cphc.201501168

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：

Thin films of the methylammonium lead halides CH3NH3Pb(I1-xBrx)(3) are prepared on fluorine-doped tin oxide substrates and exposed to humid air in the dark and under illumination. To characterize the stability of the materials, UV/Vis spectra are acquired at fixed intervals, accompanied by XRD, energy-dispersive X-ray spectroscopy, SEM, and confocal laser scanning microscopy. Different degradation mechanisms are observed depending on the environmental conditions. It is found that bromide can successfully suppress the transformation of the perovskite into the monohydrate, presumably owing to stronger hydrogen-bonding interactions with the organic cation. However, under illumination in humid air, rather rapid decomposition of the perovskites was still observed, which is due to phase segregation. The use of increased bromide content in methylammonium lead halide absorbers is discussed in terms of their application in perovskite solar cells.

引用

页码：1505 / 1511

页数：7

共 32 条

[11]

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

[12] 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-+

[13] Band-gap tuning of lead halide perovskites using a sequential deposition process [J].

Kulkarni, Sneha A. ;

Baikie, Tom ;

Boix, Pablo P. ;

Yantara, Natalia ;

Mathews, Nripan ;

Mhaisalkar, Subodh .

JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (24) :9221-9225

[14] Reversible Hydration of CH3NH3Pbl3 in Films, Single Crystals, and Solar Cells [J].

Leguy, Aurelien M. A. ;

Hu, Yinghong ;

Campoy-Quiles, Mariano ;

Isabel Alonso, M. ;

Weber, Oliver J. ;

Azarhoosh, Pooya ;

van Schilfgaarde, Mark ;

Weller, Mark T. ;

Bein, Thomas ;

Nelson, Jenny ;

Docampo, Pablo ;

Barnes, Piers R. F. .

CHEMISTRY OF MATERIALS, 2015, 27 (09) :3397-3407

[15] Stability of Metal Halide Perovskite Solar Cells [J].

Leijtens, Tomas ;

Eperon, Giles E. ;

Noel, Nakita K. ;

Habisreutinger, Severin N. ;

Petrozza, Annamaria ;

Snaith, Henry J. .

ADVANCED ENERGY MATERIALS, 2015, 5 (20)

[16]

Li X, 2015, NAT CHEM, V7, P703, DOI [10.1038/NCHEM.2324, 10.1038/nchem.2324]

[17] Outdoor Performance and Stability under Elevated Temperatures and Long-Term Light Soaking of Triple-Layer Mesoporous Perovskite Photovoltaics [J].

Li, Xiong ;

Tschumi, Manuel ;

Han, Hongwei ;

Babkair, Saeed Salem ;

Alzubaydi, Raysah Ali ;

Ansari, Azhar Ahmad ;

Habib, Sami S. ;

Nazeeruddin, Mohammad Khaja ;

Zakeeruddin, Shaik M. ;

Graetzel, Michael .

ENERGY TECHNOLOGY, 2015, 3 (06) :551-555

[18] Temperature- and Component-Dependent Degradation of Perovskite Photovoltaic Materials under Concentrated Sunlight [J].

Misra, Ravi K. ;

Aharon, Sigalit ;

Li, Baili ;

Mogilyansky, Dmitri ;

Visoly-Fisher, Iris ;

Etgar, Lioz ;

Katz, Eugene A. .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2015, 6 (03) :326-330

[19] Ab Initio Molecular Dynamics Simulations of Methylammonium Lead Iodide Perovskite Degradation by Water [J].

Mosconi, Edoardo ;

Azpiroz, Jon M. ;

De Angelis, Filippo .

CHEMISTRY OF MATERIALS, 2015, 27 (13) :4885-4892

[20] Review of recent progress in chemical stability of perovskite solar cells [J].

Niu, Guangda ;

Guo, Xudong ;

Wang, Liduo .

JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (17) :8970-8980

← 1 2 3 4 →