Fullerene derivative anchored SnO2 for high-performance perovskite solar cells

2018 ◽  
Vol 11 (12) ◽  
pp. 3463-3471 ◽  
Author(s):  
Kuan Liu ◽  
Shuang Chen ◽  
Jionghua Wu ◽  
Huiyin Zhang ◽  
Minchao Qin ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Fullerene Derivative ◽  
Side Chain ◽  
Hydroxyl Groups ◽  
Device Stability ◽  
Planar Heterojunction

A fullerene derivative C9 with anchoring hydroxyl groups on the long side chain is used to modify the surface of SnO2 in planar heterojunction perovskite solar cells, which exhibit high efficiency up to 21.3% with negligible hysteresis and good device stability.

scholarly journals Iodine reduction for reproducible and high-performance perovskite solar cells and modules

2021 ◽  
Vol 7 (10) ◽  
pp. eabe8130
Author(s):  
Shangshang Chen ◽  
Xun Xiao ◽  
Hangyu Gu ◽  
Jinsong Huang
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Electronic Materials ◽  
Substantial Reduction ◽  
Perovskite Solar Cells ◽  
High Yield ◽  
Operation Conditions ◽  
Record Value ◽  
Precursor Powders

Perovskite-based electronic materials and devices such as perovskite solar cells (PSCs) have notoriously bad reproducibility, which greatly impedes both fundamental understanding of their intrinsic properties and real-world applications. Here, we report that organic iodide perovskite precursors can be oxidized to I2 even for carefully sealed precursor powders or solutions, which markedly deteriorates the performance and reproducibility of PSCs. Adding benzylhydrazine hydrochloride (BHC) as a reductant into degraded precursor solutions can effectively reduce the detrimental I2 back to I−, accompanied by a substantial reduction of I3−-induced charge traps in the films. BHC residuals in perovskite films further stabilize the PSCs under operation conditions. BHC improves the stabilized efficiency of the blade-coated p-i-n structure PSCs to a record value of 23.2% (22.62 ± 0.40% certified by National Renewable Energy Laboratory), and the high-efficiency devices have a very high yield. A stabilized aperture efficiency of 18.2% is also achieved on a 35.8-cm2 mini-module.

scholarly journals Solar Cells: Phosphonium Halides as Both Processing Additives and Interfacial Modifiers for High Performance Planar-Heterojunction Perovskite Solar Cells (Small 27/2015)

Small ◽  
2015 ◽  
Vol 11 (27) ◽  
pp. 3343-3343 ◽  
Author(s):  
Chen Sun ◽  
Qifan Xue ◽  
Zhicheng Hu ◽  
Ziming Chen ◽  
Fei Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Planar Heterojunction

scholarly journals Enhancing the efficiency of planar heterojunction perovskite solar cells via interfacial engineering with 3-aminopropyl trimethoxy silane hydrolysate

2017 ◽  
Vol 4 (12) ◽  
pp. 170980 ◽  
Author(s):  
Ya-Qiong Wang ◽  
Shou-Bin Xu ◽  
Jian-Guo Deng ◽  
Li-Zhen Gao
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Fill Factor ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Interfacial Engineering ◽  
Interfacial Compatibility ◽  
Planar Heterojunction ◽  
Trimethoxy Silane

The interfacial compatibility between compact TiO 2 and perovskite layers is critical for the performance of planar heterojunction perovskite solar cells (PSCs). A compact TiO 2 film employed as an electron-transport layer (ETL) was modified using 3-aminopropyl trimethoxy silane (APMS) hydrolysate. The power conversion efficiency (PCE) of PSCs composed of an APMS-hydrolysate-modified TiO 2 layer increased from 13.45 to 15.79%, which was associated with a significant enhancement in the fill factor (FF) from 62.23 to 68.04%. The results indicate that APMS hydrolysate can enhance the wettability of γ-butyrolactone (GBL) on the TiO 2 surface, form a perfect CH 3 NH 3 PbI 3 film, and increase the recombination resistance at the interface. This work demonstrates a simple but efficient method to improve the TiO 2 /perovskite interface that can be greatly beneficial for developing high-performance PSCs.

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.

Pathways toward high-performance inorganic perovskite solar cells: challenges and strategies

2019 ◽  
Vol 7 (36) ◽  
pp. 20494-20518 ◽  
Author(s):  
Bo Li ◽  
Lin Fu ◽  
Shuang Li ◽  
Hui Li ◽  
Lu Pan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Energy ◽  
High Performance ◽  
High Efficiency ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Challenges And Strategies

High-efficiency and low-cost perovskite solar cells (PSCs) are desirable candidates for addressing the scalability challenge of renewable solar energy.

Low-temperature interfacial engineering for flexible CsPbI2Br perovskite solar cells with high performance beyond 15%

2020 ◽  
Vol 8 (10) ◽  
pp. 5308-5314 ◽  
Author(s):  
Xia Yang ◽  
Hanjun Yang ◽  
Xiaotian Hu ◽  
Wenting Li ◽  
Zhimin Fang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
High Performance ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Interfacial Engineering ◽  
Doped Zno

High-efficiency flexible CsPbI2Br PSCs are designed by introducing Al-doped ZnO as an electron-transport layer and tert-butyl cyanoacetate as a hole passivation layer. The optimized PSC exhibits outstanding stability and a champion PCE of 15.08%.

Recent advances in perovskite solar cells: efficiency, stability and lead-free perovskite

2017 ◽  
Vol 5 (23) ◽  
pp. 11462-11482 ◽  
Author(s):  
Shida Yang ◽  
Weifei Fu ◽  
Zhongqiang Zhang ◽  
Hongzheng Chen ◽  
Chang-Zhi Li
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Recent Progress ◽  
Perovskite Solar Cells ◽  
Lead Free ◽  
Tandem Solar Cells ◽  
Device Stability ◽  
Recent Advances ◽  
Stability Issue ◽  
The Stability

In this review, we first highlighted recent progress in high-performance perovskite solar cells (PVSCs) with a discussion of the fabrication methods and PVSCs-based tandem solar cells. Furthermore, the stability issue of PVSCs and strategies to improve material and device stability have been discussed, and finally, a summary of the recent progress in lead-free perovskites has been presented.

Intermixing-seeded growth for high-performance planar heterojunction perovskite solar cells assisted by precursor-capped nanoparticles

2016 ◽  
Vol 9 (4) ◽  
pp. 1282-1289 ◽  
Author(s):  
Shao-Sian Li ◽  
Chi-Huang Chang ◽  
Ying-Chiao Wang ◽  
Chung-Wei Lin ◽  
Di-Yan Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Nucleation And Growth ◽  
Seeded Growth ◽  
Novel Approach ◽  
Planar Heterojunction

A novel approach to modulate the nucleation and growth of perovskite crystals by intermixing precursor-capped nanoparticles has been reported.

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