In situ growth of perovskite stacking layers for high-efficiency carbon-based hole conductor free perovskite solar cells

2019 ◽  
Vol 7 (22) ◽  
pp. 13777-13786 ◽  
Author(s):  
Jianhua Liu ◽  
Qisen Zhou ◽  
Nan Kyi Thein ◽  
Lei Tian ◽  
Donglin Jia ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Interfacial Properties ◽  
Carbon Electrode ◽  
In Situ Growth ◽  
Perovskite Layer ◽  
Electrode Interface ◽  
Stacking Structure

An additional perovskite stacking layer is in situ grown on the top of a perovskite layer forming a perovskite stacking structure to improve the interfacial properties at the perovskite/carbon electrode interface.

In-situ polymer-covered annealing strategy for high-efficiency carbon-electrode CsPbIBr2 solar cells

2021 ◽  
Author(s):  
Xiaoping Xie ◽  
Gang Liu ◽  
Peng Dong ◽  
Dawei Liu ◽  
Yufeng Ni ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Carbon Electrode ◽  
Inorganic Perovskite ◽  
Absorber Material

CsPbIBr2 has gained intense attention as the absorber material of all-inorganic perovskite solar cells (PSCs), owing to its upgraded stability and suitable bandgap. Yet, the efficiency level of CsPbIBr2 PSCs...

scholarly journals A general approach to high-efficiency perovskite solar cells by any antisolvent

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Alexander D. Taylor ◽  
Qing Sun ◽  
Katelyn P. Goetz ◽  
Qingzhi An ◽  
Tim Schramm ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Microstructural Characterization ◽  
Application Rate ◽  
Perovskite Layer ◽  
Highly Efficient ◽  
Application Procedure ◽  
Wide Range

AbstractDeposition of perovskite films by antisolvent engineering is a highly common method employed in perovskite photovoltaics research. Herein, we report on a general method that allows for the fabrication of highly efficient perovskite solar cells by any antisolvent via manipulation of the antisolvent application rate. Through detailed structural, compositional, and microstructural characterization of perovskite layers fabricated by 14 different antisolvents, we identify two key factors that influence the quality of the perovskite layer: the solubility of the organic precursors in the antisolvent and its miscibility with the host solvent(s) of the perovskite precursor solution, which combine to produce rate-dependent behavior during the antisolvent application step. Leveraging this, we produce devices with power conversion efficiencies (PCEs) that exceed 21% using a wide range of antisolvents. Moreover, we demonstrate that employing the optimal antisolvent application procedure allows for highly efficient solar cells to be fabricated from a broad range of precursor stoichiometries.

scholarly journals Effect of SnO2 Colloidal Dispersion Solution Concentration on the Quality of Perovskite Layer of Solar Cells

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 591
Author(s):  
Keke Song ◽  
Xiaoping Zou ◽  
Huiyin Zhang ◽  
Chunqian Zhang ◽  
Jin Cheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Efficiency ◽  
Surface Condition ◽  
Perovskite Solar Cells ◽  
Colloidal Dispersion ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Perovskite Layer ◽  
Dispersion Solution

The electron transport layer (ETL) is critical to carrier extraction for perovskite solar cells (PSCs). Moreover, the morphology and surface condition of the ETL could influence the topography of the perovskite layer. ZnO, TiO2, and SnO2 were widely investigated as ETL materials. However, TiO2 requires a sintering process under high temperature and ZnO has the trouble of chemical instability. SnO2 possesses the advantages of low-temperature fabrication and high conductivity, which is critical to the performance of PSCs prepared under low temperature. Here, we optimized the morphology and property of SnO2 by modulating the concentration of a SnO2 colloidal dispersion solution. When adjusting the concentration of SnO2 colloidal dispersion solution to 5 wt.% (in water), SnO2 film indicated better performance and the perovskite film has a large grain size and smooth surface. Based on high efficiency (16.82%), the device keeps a low hysteresis index (0.23).

scholarly journals Generic water-based spray-assisted growth for scalable high-efficiency carbon-electrode all-inorganic perovskite solar cells

iScience ◽  
2021 ◽  
pp. 103365
Author(s):  
Zeyang Zhang ◽  
Yanshuang Ba ◽  
Dandan Chen ◽  
Junxiao Ma ◽  
Weidong Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Carbon Electrode ◽  
Inorganic Perovskite ◽  
Water Based

scholarly journals Perovskite Solar Cells: In Situ Growth of 2D Perovskite Capping Layer for Stable and Efficient Perovskite Solar Cells (Adv. Funct. Mater. 17/2018)

2018 ◽  
Vol 28 (17) ◽  
pp. 1870113 ◽  
Author(s):  
Peng Chen ◽  
Yang Bai ◽  
Songcan Wang ◽  
Miaoqiang Lyu ◽  
Jung-Ho Yun ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
In Situ Growth ◽  
Capping Layer

scholarly journals In Situ Growth of 2D Perovskite Capping Layer for Stable and Efficient Perovskite Solar Cells

2018 ◽  
Vol 28 (17) ◽  
pp. 1706923 ◽  
Author(s):  
Peng Chen ◽  
Yang Bai ◽  
Songcan Wang ◽  
Miaoqiang Lyu ◽  
Jung-Ho Yun ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
In Situ Growth ◽  
Capping Layer

scholarly journals In-situ formed and low-temperature deposited Nb: TiO2 compact-mesoporous layer for hysteresis-less perovskite solar cells with high performance

2020 ◽  
Author(s):  
Miao Yu ◽  
Haoxuan Sun ◽  
Xiaona Huang ◽  
Yichao Yan ◽  
Wanli Zhang
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Performance ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
High Power Conversion Efficiency ◽  
Mesoporous Structures

Abstract Recently, reported perovskite solar cells (PSCs) with high power conversion efficiency (PCE) are mostly based on mesoporous structures containing mesoporous titanium oxide (TiO 2 ) which is the main factor to reduce the overall hysteresis. However, existing fabrication approaches for mesoporous TiO 2 generally require a high temperature (>450 °C) annealing process. Moreover, there is still plenty of scope for improvement in terms of increasing the electron conductivity and reducing the carrier recombination. Herein, a facile one-step, in situ and low-temperature method was developed to prepare an Nb:TiO 2 compact-mesoporous layer to serve as both a scaffold and an electron transport layer (ETL) in PSCs. The Nb:TiO 2 compact-mesoporous layer based PSCs exhibit suppressed hysteresis, which is attributed to the synergistic effect of the large interface surface area caused by nano-pin morphology on the surface and the improved carrier transportation caused by the presence of Nb. Such a high-quality compact-mesoporous layer allows the PSC achieve a remarkable PCE of 19.74%. This work promises an effective approach for creating hysteresis-less and high-efficiency PSCs based on compact-mesoporous structures with lower energy consumption and cost.

Realizing High Efficiency over 20% of Low‐Bandgap Pb–Sn‐Alloyed Perovskite Solar Cells by In Situ Reduction of Sn 4+

Solar RRL ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 1900467 ◽  
Author(s):  
Tingming Jiang ◽  
Zeng Chen ◽  
Xu Chen ◽  
Tianyu Liu ◽  
Xinya Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
In Situ Reduction ◽  
Low Bandgap
Sign in / Sign up

Export Citation Format

Share Document