Perovskite solar cells with a planar heterojunction structure prepared using room-temperature solution processing techniques

2013 ◽  
Vol 8 (2) ◽  
pp. 133-138 ◽  
Author(s):  
Dianyi Liu ◽  
Timothy L. Kelly
Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1489
Author(s):  
Bhaskar Parida ◽  
Saemon Yoon ◽  
Dong-Won Kang

Materials and processing of transparent electrodes (TEs) are key factors to creating high-performance translucent perovskite solar cells. To date, sputtered indium tin oxide (ITO) has been a general option for a rear TE of translucent solar cells. However, it requires a rather high cost due to vacuum process and also typically causes plasma damage to the underlying layer. Therefore, we introduced TE based on ITO nanoparticles (ITO-NPs) by solution processing in ambient air without any heat treatment. As it reveals insufficient conductivity, Ag nanowires (Ag-NWs) are additionally coated. The ITO-NPs/Ag-NW (0D/1D) bilayer TE exhibits a better figure of merit than sputtered ITO. After constructing CsPbBr3 perovskite solar cells, the device with 0D/1D TE offers similar average visible transmission with the cells with sputtered ITO. More interestingly, the power conversion efficiency of 0D/1D TE device was 5.64%, which outperforms the cell (4.14%) made with sputtered-ITO. These impressive findings could open up a new pathway for the development of low-cost, translucent solar cells with quick processing under ambient air at room temperature.


2015 ◽  
Vol 51 (98) ◽  
pp. 17413-17416 ◽  
Author(s):  
Shin Sung Kim ◽  
Seunghwan Bae ◽  
Won Ho Jo

Herein we report a simple n-doping method to enhance the performance of perovskite solar cells with a planar heterojunction structure.


Nanoscale ◽  
2015 ◽  
Vol 7 (41) ◽  
pp. 17343-17349 ◽  
Author(s):  
Jong H. Kim ◽  
Chu-Chen Chueh ◽  
Spencer T. Williams ◽  
Alex K.-Y. Jen

High-efficiency (15.7%) perovskite solar cell is demonstrated based on a room-temperature and solution processable organic electron extraction layer.


2014 ◽  
Vol 2 (43) ◽  
pp. 9087-9090 ◽  
Author(s):  
Ling Wang ◽  
Weifei Fu ◽  
Zhuowei Gu ◽  
Congcheng Fan ◽  
Xi Yang ◽  
...  

Power conversion efficiency up to 11.7% was achieved with a CdSe nanocrystal acting as an electron transport/extraction layer for perovskite solar cells under standard AM1.5G conditions in air.


RSC Advances ◽  
2018 ◽  
Vol 8 (23) ◽  
pp. 12823-12831 ◽  
Author(s):  
Jun Jiang ◽  
Shubo Wang ◽  
Xuguang Jia ◽  
Xiang Fang ◽  
Shuai Zhang ◽  
...  

Flexible perovskite solar cells are new technology-based products developed by the global solar industry and are promising candidates for realizing a flexible and lightweight energy supply system for wearable and portable electronic devices.


2019 ◽  
Vol 12 (01) ◽  
pp. 1850091 ◽  
Author(s):  
Jing Song ◽  
Xiaoxia Xu ◽  
Jihuai Wu ◽  
Zhang Lan

Low-temperature solution-processing method is a kind of low-energy-consuming and simple methodology for preparing cost-effective planar perovskite solar cells (PSCs). To achieve high-effciency planar PSCs, the quality of electron-transporting layers (ETLs) play a key role. The solvothermal-synthesized organic ligands capped semiconductor nanocrystals (NCs) not only have high crystallinity but also show excellent film-formation. Nevertheless, the biggest problem is that these organic ligands will form insulating barriers around the NCs, which will seriously hinder electronic coupling and limit performance of the corresponding devices. Therefore, the stripping treatment for organic ligands, which is not only complex but also has destructive influence on the quality of films, is traditionally used for achieving good performance. Here, we select high crystalline oleic acid-capped SnO2 NCs to prepare ETLs with low-temperature solution-processed methodology without complex ligand stripping step. We use Nb[Formula: see text] doping route to further enhance photovoltaic performance of the planar PSCs. The champion PSC based on Nb-doped SnO2 NCs ETL achieves a power conversion efficiency of 20.07%.


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