Low-bandgap mixed tin–lead iodide perovskite with large grains for high performance solar cells

2018 ◽  
Vol 6 (27) ◽  
pp. 13090-13095 ◽  
Author(s):  
Yaqin Wang ◽  
Weifei Fu ◽  
Jielin Yan ◽  
Jiehuan Chen ◽  
Weitao Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Processing Method ◽  
Lead Iodide ◽  
Low Bandgap ◽  
High Crystallinity ◽  
Current Voltage ◽  
Vertically Aligned ◽  
Voltage Hysteresis

Low-bandgap (1.26 eV) FA0.7MA0.3Sn0.3Pb0.7I3 perovskite film with vertically aligned large grains and high crystallinity was fabricated via a two-step processing method on top of a hydrophobic PTAA HTL. A maximum PCE of 13.6% was obtained with negligible current–voltage hysteresis.

Design of surface termination for high-performance perovskite solar cells

2021 ◽  
Author(s):  
Yan Yang ◽  
Wangen Zhao ◽  
Tengteng Yang ◽  
Jiali Liu ◽  
Jingru Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
Surface Termination ◽  
Guanidinium Thiocyanate

Guanidinium thiocyanate was selected to modify the surface terminations of methylamine lead iodide (MAPbI3) perovskite films and a 21.26% PCE was acquired for a solar cell based on the MAPbI3 system, and the voltage deficit is reduced to 0.426 V.

Constructing a Strongly Absorbing Low-Bandgap Polymer Acceptor for High-Performance All-Polymer Solar Cells

2017 ◽  
Vol 129 (43) ◽  
pp. 13688-13692 ◽  
Author(s):  
Zhi-Guo Zhang ◽  
Yankang Yang ◽  
Jia Yao ◽  
Lingwei Xue ◽  
Shanshan Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Low Bandgap ◽  
Polymer Acceptor

Low-bandgap polymers with quinoid unit as π bridge for high-performance solar cells

2020 ◽  
Vol 40 ◽  
pp. 180-187
Author(s):  
Bilal Shahid ◽  
Xiyue Yuan ◽  
Qian Wang ◽  
Di Zhou ◽  
Ergang Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Low Bandgap

Constructing a Strongly Absorbing Low-Bandgap Polymer Acceptor for High-Performance All-Polymer Solar Cells

2017 ◽  
Vol 56 (43) ◽  
pp. 13503-13507 ◽  
Author(s):  
Zhi-Guo Zhang ◽  
Yankang Yang ◽  
Jia Yao ◽  
Lingwei Xue ◽  
Shanshan Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Low Bandgap ◽  
Polymer Acceptor

Successive surface engineering of TiO2 compact layers via dual modification of fullerene derivatives affording hysteresis-suppressed high-performance perovskite solar cells

2017 ◽  
Vol 5 (4) ◽  
pp. 1724-1733 ◽  
Author(s):  
Weiran Zhou ◽  
Jieming Zhen ◽  
Qing Liu ◽  
Zhimin Fang ◽  
Dan Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Surface Engineering ◽  
Perovskite Solar Cells ◽  
Engineering Method ◽  
Voltage Response ◽  
Efficiency Enhancement ◽  
Compact Layer ◽  
Fullerene Derivatives ◽  
Current Voltage

A new successive surface engineering method via a dual modification of TiO2 compact layer by PC61BM and C60-ETA was developed, affording dramatic efficiency enhancement with suppressed-hysteresis current–voltage response.

Enhanced Grain Size and Crystallinity in CH3NH3PbI3 Perovskite Films by Metal Additives to the Single-Step Solution Fabrication Process

MRS Advances ◽  
2018 ◽  
Vol 3 (55) ◽  
pp. 3237-3242 ◽  
Author(s):  
Zahrah S. Almutawah ◽  
Suneth C. Watthage ◽  
Zhaoning Song ◽  
Ramez H. Ahangharnejhad ◽  
Kamala K. Subedi ◽  
...  
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Single Step ◽  
Fabrication Process ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide

ABSTRACTMethods of obtaining large grain size and high crystallinity in absorber materials play an important role in fabrication of high-performance methylammonium lead iodide (MAPbI3) perovskite solar cells. Here we study the effect of adding small concentrations of Cd2+, Zn2+, and Fe2+salts to the perovskite precursor solution used in the single-step solution fabrication process. Enhanced grain size and crystallinity in MAPbI3 films were obtained by using 0.1% of Cd2+ or Zn2+in the precursor solution. Consequently, solar cells constructed with Cd- and Zn-doped perovskite films show a significant improvement in device performance. These results suggest that the process may be an effective and facile method to fabricate high-efficiency perovskite photovoltaic devices.

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