Encapsulation of Perovskite Solar Cells for High Humidity Conditions

ChemSusChem ◽  
2016 ◽  
Vol 9 (18) ◽  
pp. 2597-2603 ◽  
Author(s):  
Qi Dong ◽  
Fangzhou Liu ◽  
Man Kwong Wong ◽  
Ho Won Tam ◽  
Aleksandra B. Djurišić ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
High Humidity

Improved the Performance and Stability at High Humidity of Perovskite Solar Cells by Mixed Cesium-Metylammonium Cations

2020 ◽  
Vol 860 ◽  
pp. 9-14
Author(s):  
Ayi Bahtiar ◽  
Rizka Yazibarahmah ◽  
Annisa Aprilia ◽  
Darmawan Hidayat
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Silicon Solar Cells ◽  
Hole Transport Layer ◽  
High Humidity ◽  
Lead Bromide ◽  
Solution Methods

Perovskite solar cells have a great potential as competitor of silicon solar cells which have been dominated the market of solar cells since last decade, due to a tremendous improvement of their power conversion efficiency (PCE). Recently, a PCE of perovskite solar cells above 23% have been obtained. Moreover, perovskite solar cells can be fabricated using simple solution methods, therefore, the whole cost production of solar cells is less than half of silicon solar cells. However, their low stability in thermal and high humidity hinder them to be produced and commercially used to replace silicon solar cells. Many efforts have been done to improve both PCE and stability, including mixed inorganic-organic cations, mixed halide anions, improvement of perovskite morphology or crystallinity and using small molecules for passivation of defect in perovskite. In this paper, we used mixed cesium-methylammonium to improve both PCE and stability of perovskite solar cells. Cesium was used due to its smaller ionic radius than methylammonium (MA) ions, therefore, the crystal structure of perovskite is not distorted. Moreover, perovskite cesium-lead-bromide (CsPbBr3) are more stable than that of MAPbBr3 and doping cesium increased light absorption in perovskite MAPbBr3. We studied the effect of mixed cesium-MA on the PCE and stability at high humidity (>70%). The percentage of cesium was varied at 0%, 5%, 10%, 15% and 20%. The perovskite solar cells have monolithic hole-transport layer free (HTL-free) structure using carbon as electrode. This structure was used due simple and low cost in processing of solar cells. Our results showed that by replacing 10% of MA ions with Cs ions, both PCE and stability at high humidity are improved.

Promoting perovskite crystal growth to achieve highly efficient and stable solar cells by introducing acetamide as an additive

2018 ◽  
Vol 6 (21) ◽  
pp. 9930-9937 ◽  
Author(s):  
Haiying Zheng ◽  
Liangzheng Zhu ◽  
Linhua Hu ◽  
Shangfeng Yang ◽  
Shuanghong Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystal Growth ◽  
Perovskite Solar Cells ◽  
Heat Stability ◽  
High Humidity ◽  
Highly Efficient ◽  
Perovskite Crystal

By introducing CH3CONH2 as an additive, perovskite solar cells showed an improved PCE of 19.01%, with high humidity and heat stability.

Dopant-free F-substituted benzodithiophene copolymer hole-transporting materials for efficient and stable perovskite solar cells

2020 ◽  
Vol 8 (4) ◽  
pp. 1858-1864 ◽  
Author(s):  
Xiangyu Kong ◽  
Yue Jiang ◽  
Xiayan Wu ◽  
Cong Chen ◽  
Jiali Guo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Ambient Atmosphere ◽  
High Humidity ◽  
Hole Transporting ◽  
Hole Transporting Materials

Perovskite solar cells based on dopant-free PBDT[2F]T have achieved a power conversion efficiency (17.52%), combined with an impressive stability in contrast to that with the doped spiro-OMeTAD as a HTM in ambient atmosphere and even in high humidity.

scholarly journals A New Strategy for Increasing the Efficiency of Inverted Perovskite Solar Cells to More than 21%: High‐Humidity Induced Self‐Passivation of Perovskite Films

Solar RRL ◽  
2020 ◽  
Vol 4 (9) ◽  
pp. 2070094
Author(s):  
Fan Zhang ◽  
Qingxun Huang ◽  
Jun Song ◽  
Shuzi Hayase ◽  
Junle Qu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
High Humidity ◽  
New Strategy

Moisture-tolerant supermolecule for the stability enhancement of organic–inorganic perovskite solar cells in ambient air

Nanoscale ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 1228-1235 ◽  
Author(s):  
Dong Wei ◽  
Hao Huang ◽  
Peng Cui ◽  
Jun Ji ◽  
Shangyi Dou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
High Humidity ◽  
Inorganic Perovskite ◽  
Long Term Stability ◽  
Perovskite Materials ◽  
The Stability ◽  
Stability Enhancement

Long-term stability of the perovskite materials and devices in high humidity could be improved by the moisture-tolerant supermolecules.

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