Improvement of the interfacial contact between zinc oxide and a mixed cation perovskite using carbon nanotubes for ambient-air-processed perovskite solar cells

2020 ◽  
Vol 44 (45) ◽  
pp. 19802-19811 ◽  
Author(s):  
Mustafa K. A. Mohammed ◽  
Masoud Dehghanipour ◽  
Umer Younis ◽  
Ahmed Esmail Shalan ◽  
P. Sakthivel ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Zinc Oxide ◽  
Solar Cells ◽  
Current Density ◽  
Sandwich Structure ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Mixed Cation ◽  
Interfacial Contact ◽  
Planar Device

(a) The sandwich structure of the planar device based on the ZnO ETL and fully-processed in ambient air. (b) Significant improvement in the current density of the PSCs after using 1D carbon nanotubes in the ZnO ETLs.

Efficient all-air processed mixed cation carbon-based perovskite solar cells with ultra-high stability

2019 ◽  
Vol 7 (29) ◽  
pp. 17594-17603 ◽  
Author(s):  
Junshuai Zhou ◽  
Jiaojiao Wu ◽  
Nan Li ◽  
Xitao Li ◽  
Yan-Zhen Zheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Stability ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Mixed Cation ◽  
Carbon Based

The all-air-processed MWCNT-incorporated mixed cation carbon-based perovskite solar cells achieve an outstanding PCE of 16.25% and the best ambient-air stability of PSCs fabricated in air so far.

Surface treatment of ZnO films with carbon nanotubes for efficient and stable perovskite solar cells

2021 ◽  
Author(s):  
Mustafa K. A. Mohammed ◽  
Masoud Shekargoftar
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Surface Treatment ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Zno Films ◽  
Hydroxyl Groups ◽  
Ion Migration

Carbon nanotubes were used to deactivate hydroxyl groups, which are the main reason for ion migration in ambient-air processed perovskite solar cells.

scholarly journals Influence of Electrical Traps on the Current Density Degradation of Inverted Perovskite Solar Cells

Materials ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1644 ◽  
Author(s):  
Hyunho Lee ◽  
Changhee Lee ◽  
Hyung-Jun Song
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Carrier Transport ◽  
Degradation Mechanism ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Open Circuit ◽  
Premature Aging ◽  
Perovskite Layer ◽  
Air Exposure

Premature aging of perovskite solar cells (PSC) is one of the biggest challenges for its commercialization. Particularly, PSCs exhibit rapid degradation of photovoltaic parameters under ambient air exposure. To estimate the degradation mechanism of PSC under air exposure, we systematically analyzed the relationship between electrical traps of the PSC and its degradation. After 240 h of air exposure to the PSC, its power conversion efficiency degraded to 80% compared to its initial value. The loss mainly originated from reduced current density, which is affected by traps and carrier transport in the disordered semiconducting layer. Capacitance–voltage plots of the PSC showed that the ionic doping from the perovskite layer caused an increased number of trap sites at the buffer layer. Moreover, the extrapolation of temperature dependent open circuit voltage graphs indicated that the trap sites lead to poor carrier transport by increasing recombination losses in the aged device. Therefore, trap sites arose from the result of ion migration and caused an early degradation of PSC under air exposure.

scholarly journals Room-Temperature Solution-Processed 0D/1D Bilayer Electrodes for Translucent CsPbBr3 Perovskite Photovoltaics

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1489
Author(s):  
Bhaskar Parida ◽  
Saemon Yoon ◽  
Dong-Won Kang
Keyword(s):  
Solar Cells ◽  
Indium Tin Oxide ◽  
High Performance ◽  
Room Temperature ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Plasma Damage ◽  
Temperature Solution ◽  
Ito Nanoparticles

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.

Construction and mechanistic understanding of high-performance all-air-processed perovskite solar cells via mixed-cation engineering

2021 ◽  
Author(s):  
Wenyuan Zhang ◽  
Lang He ◽  
Yuanchao Li ◽  
Dongyan Tang ◽  
Xin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Manufacturing Processes ◽  
Mixed Cation ◽  
Mechanistic Understanding

All-air-processed perovskite solar cells (PSCs) have attracted increasing attention due to low cost and simplified manufacturing processes. At present, to fabricate efficient and stable PSCs in the air is expected....

Facile preparation of smooth perovskite films for efficient meso/planar hybrid structured perovskite solar cells

2015 ◽  
Vol 51 (49) ◽  
pp. 10038-10041 ◽  
Author(s):  
Meng Zhang ◽  
Hua Yu ◽  
Jung-Ho Yun ◽  
Miaoqiang Lyu ◽  
Qiong Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Drying Method ◽  
Facile Preparation ◽  
Halide Perovskite ◽  
Organolead Halide

Smooth organolead halide perovskite films were prepared by a facile blow-drying method in ambient air for achieving efficient and low cost meso/planar hybrid structured perovskite solar cells.

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