THE ROLE OF Br AS DOPANT ON THE STRUCTURAL AND CHARGE TRANSPORT PROPERTIES IN CH3NH3PbI3−x−yBrxCly MIXED-HALIDE PEROVSKITE FOR HYBRID SOLAR CELLS

2019 ◽  
Vol 26 (02) ◽  
pp. 1850137
Author(s):  
JINFENG WANG ◽  
BENGUANG ZHAO ◽  
LEI ZHU ◽  
JIAN SONG
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Perovskite Solar Cells ◽  
Ambient Conditions ◽  
Perovskite Layer ◽  
Heterojunction Solar Cells ◽  
Halide Perovskite ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction

A series of CH3NH3PbI[Formula: see text]BrxCly mixed-halide perovskite were fabricated as light harvesters for organic–inorganic planar heterojunction perovskite solar cells (PSCs). This paper aimed at investigating the morphology and structural properties of Br doped mixed-halide perovskites and the influence on the corresponding photovoltaic performances. We found that Br incorporation in an I/Cl-based structure dramatically improved the charge transport within the perovskite layer. The average efficiency of the planar device was 13.6% with a minimal standard deviation of [Formula: see text] 1.53% and best efficiency as high as 15.13% was achieved. Moreover, the device showed superior stability over 20 days with little degradation [Formula: see text]9% when stored under ambient conditions, indicating the outstanding performances of planar heterojunction solar cells based on this material. The results highlight the crucial role of the Br doping on the performance of the PSCs and pave the way for further progress on this field.

scholarly journals A Universal Deposition Protocol for Planar Heterojunction Solar Cells with High Efficiency Based on Hybrid Lead Halide Perovskite Families

2016 ◽  
Vol 28 (48) ◽  
pp. 10701-10709 ◽  
Author(s):  
Bert Conings ◽  
Aslihan Babayigit ◽  
Matthew T. Klug ◽  
Sai Bai ◽  
Nicolas Gauquelin ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Heterojunction Solar Cells ◽  
Halide Perovskite ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction ◽  
Lead Halide

Coarsening of one-step deposited organolead triiodide perovskite films via Ostwald ripening for high efficiency planar-heterojunction solar cells

2016 ◽  
Vol 45 (18) ◽  
pp. 7856-7865 ◽  
Author(s):  
Weidong Zhu ◽  
Chunxiong Bao ◽  
Yangrunqian Wang ◽  
Faming Li ◽  
Xiaoxin Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Ostwald Ripening ◽  
Perovskite Solar Cells ◽  
Grain Coarsening ◽  
Heterojunction Solar Cells ◽  
One Step ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction

The remarkable grain coarsening in one-step deposited OTP films for high efficiency planar-heterojunction perovskite solar cells.

scholarly journals MAPbI3 Incorporated with Carboxyl Group Chelated Titania for Planar Perovskite Solar Cells in Low-Temperature Process

Nanomaterials ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 908 ◽  
Author(s):  
Pei-Shan Li ◽  
Rathinam Balamurugan ◽  
Bo-Tau Liu ◽  
Rong-Ho Lee ◽  
Hsueh-Tao Chou
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Sol Gel ◽  
Perovskite Solar Cells ◽  
Heterojunction Solar Cells ◽  
Photoelectrical Properties ◽  
Temperature Solution ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction ◽  
Low Temperature Process

Low-temperature, solution-processed, highly efficient hybrid organic/inorganic perovskite planar heterojunction solar cells were fabricated by incorporating reactive crystalline titania (h-TAc) into MAPbI3 layers. The h-TAc was prepared by the sol-gel reaction at low temperature followed by solvothermal treatment. The photoelectrical properties of the solar cells with h-TAc were analyzed. The incorporation with 0.85-wt% h-TAc showed the highest power conversion efficiency (PCE, 15.9%), increasing 69% compared to the pristine cell. The enhancement arose from large-grained microstructures, leading to a low rate of charge recombination. The carboxyl groups chelated on the surface of h-TAc revealed a strong attraction to lead ions, which are significantly helpful to MAPbI3 crystal growth.

scholarly journals Polymer-modified halide perovskite films for efficient and stable planar heterojunction solar cells

2017 ◽  
Vol 3 (8) ◽  
pp. e1700106 ◽  
Author(s):  
Lijian Zuo ◽  
Hexia Guo ◽  
Dane W. deQuilettes ◽  
Sarthak Jariwala ◽  
Nicholas De Marco ◽  
...  
Keyword(s):  
Solar Cells ◽  
Heterojunction Solar Cells ◽  
Halide Perovskite ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction

Fundamental physics behind high-efficiency organo-metal halide perovskite solar cells

2015 ◽  
Vol 3 (30) ◽  
pp. 15372-15385 ◽  
Author(s):  
Yu-Che Hsiao ◽  
Ting Wu ◽  
Mingxing Li ◽  
Qing Liu ◽  
Wei Qin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Excited States ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Metal Halide ◽  
Fundamental Physics ◽  
Metal Halide Perovskite ◽  
Halide Perovskite

Polarization and spin-dependent excited states and charge transport.

A large grain size perovskite thin film with a dense structure for planar heterojunction solar cells via spray deposition under ambient conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (74) ◽  
pp. 60562-60569 ◽  
Author(s):  
Zhurong Liang ◽  
Shaohong Zhang ◽  
Xueqing Xu ◽  
Nan Wang ◽  
Junxia Wang ◽  
...  
Keyword(s):  
Grain Size ◽  
Surface Coverage ◽  
Spray Deposition ◽  
Deposition Process ◽  
Ambient Conditions ◽  
High Quality ◽  
Dense Structure ◽  
Heterojunction Solar Cells ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction

A facile spray deposition process was developed to prepare high-quality perovskite films with full surface coverage and large grain size.

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