Water-Repellent Perovskites Induced by a Blend of Organic Halide Salts for Efficient and Stable Solar Cells

2021 ◽  
Author(s):  
Yuanyuan Zhang ◽  
Qiao Chen ◽  
Hyun-Seock Yang ◽  
Danbi Kim ◽  
Insoo Shin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Water Repellent ◽  
Organic Halide ◽  
Halide Salts

Water repellent room temperature vulcanized silicone for enhancing the long-term stability of perovskite solar cells

Solar Energy ◽  
2021 ◽  
Vol 218 ◽  
pp. 28-34
Author(s):  
Mahmoud Samadpour ◽  
Mahsa Heydari ◽  
Mahdi Mohammadi ◽  
Parisa Parand ◽  
Nima Taghavinia
Keyword(s):  
Solar Cells ◽  
Room Temperature ◽  
Perovskite Solar Cells ◽  
Water Repellent ◽  
Term Stability ◽  
Long Term Stability

scholarly journals Transmittance Control of a Water-Repellent-Coated Layer on a Tensioned Web in a Roll-to-Roll Slot-Die Coating System

Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 4003
Author(s):  
Seongyong Kim ◽  
Minho Jo ◽  
Jongsu Lee ◽  
Changwoo Lee
Keyword(s):  
Contact Angle ◽  
Solar Cells ◽  
Control Method ◽  
Dominant Factor ◽  
Water Repellent ◽  
Process Conditions ◽  
Slot Die Coating ◽  
Roll To Roll ◽  
Slot Die ◽  
Transparent Water

Solar cells are important alternatives to fossil fuels for energy generation in today’s world, where the demand for alternative, renewable sources of energy is increasing. However, solar cells, which are installed outdoors, are susceptible to pollution by environmental factors. A solution to overcome this limitation involves coating solar cell surfaces with functional coatings. In this study, we propose a transmittance control method for a tensioned web in a roll-to-roll, transparent, water-repellent film coating. First, we analyzed the effects of process conditions on the transmittance and contact angle of the transparent water-repellent film during roll-to-roll slot-die coating. It was confirmed that the tension was the most dominant factor, followed by the coating gap. Through the tension control, the transmittance was changed by 3.27%, and the contact angle of the DI water was changed by 17.7°. In addition, it was confirmed that the transmittance was changed by 0.8% and the contact angle of DI water by 3.9° via the coating gap control. Based on these results, a transmittance prediction model was developed according to the tension and coating gap, and was then verified experimentally. Finally, a water-repellent film with a high transmittance of 89.77% was obtained using this model.

Optical and water-repellent characteristics of an anti-reflection protection layer for perovskite solar cells fabricated in ambient air

Energy ◽  
2020 ◽  
Vol 210 ◽  
pp. 118582
Author(s):  
Dong In Kim ◽  
Ji Won Lee ◽  
Rak Hyun Jeong ◽  
Ju Won Yang ◽  
Seong Park ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Water Repellent ◽  
Protection Layer

Dual Light Trapping and Water-Repellent Effects of a Flexible-Based Inverse Micro-Cone Array for Organic and Perovskite Solar Cells

2018 ◽  
Vol 10 (37) ◽  
pp. 31291-31299 ◽  
Author(s):  
Riski Titian Ginting ◽  
Eun-Bi Jeon ◽  
Jung-Mu Kim ◽  
Won-Yong Jin ◽  
Jae-Wook Kang
Keyword(s):  
Solar Cells ◽  
Light Trapping ◽  
Perovskite Solar Cells ◽  
Water Repellent

scholarly journals Conversion of metal-organic halide perovskite from PbI2 precursor films grown by hot-wall method

2018 ◽  
Vol 192 ◽  
pp. 01031
Author(s):  
Satoru Seto ◽  
Rintaro Shimizu ◽  
Makoto Tokuda
Keyword(s):  
Solar Cells ◽  
Perovskite Phase ◽  
Perovskite Solar Cells ◽  
X Ray Diffraction ◽  
Organic Halide ◽  
Metal Organic ◽  
Halide Perovskite ◽  
Planar Heterojunction ◽  
Conversion Efficiencies ◽  
Wall Method

We report on metal-organic halide perovskite CH3NH3PbI3 films converted from PbI2 precursors for planar heterojunction perovskite solar cells. PbI2 films as a precursor were deposited by hot-wall method and conventional vacuum evaporation. The conversion to perovskite phase from the PbI2 films were performed by annealing in methyl ammonium iodine (MAI) vapour at 120-150 °C. We confirmed that no residual PbI2 phase can be detected in the converted perovskite films by x-ray diffraction measurements. The surface morphology of the perovskite films was measured by AFM. Roughness Ra of the films is 17.8 nm, which is comparable value to the reported ones. Using the converted perovskite films we fabricated tentative perovskite solar cells with a device architecture of ITO/PEDOT:PSS/Perovskite/C60/Ag. The power conversion efficiencies of the fabricated solar cells from a conventional evaporation and the hot-wall method exhibited 2.22 and 2.33%, respectively.

scholarly journals Water-Repellent Low-Dimensional Fluorous Perovskite as Interfacial Coating for 20% Efficient Solar Cells

Nano Letters ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 5467-5474 ◽  
Author(s):  
Kyung Taek Cho ◽  
Yi Zhang ◽  
Simonetta Orlandi ◽  
Marco Cavazzini ◽  
Iwan Zimmermann ◽  
...  
Keyword(s):  
Solar Cells ◽  
Water Repellent ◽  
Low Dimensional

scholarly journals Improving Two-Step Prepared CH3NH3PbI3 Perovskite Solar Cells by Co-Doping Potassium Halide and Water in PbI2 Layer

Nanomaterials ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 666 ◽  
Author(s):  
Hsuan-Ta Wu ◽  
Yu-Ting Cheng ◽  
Ching-Chich Leu ◽  
Shih-Hsiung Wu ◽  
Chuan-Feng Shih
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Defect Density ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Organic Halide ◽  
Co Doping ◽  
Halide Perovskite ◽  
Potassium Halides

Incorporating additives into organic halide perovskite solar cells is the typical approach to improve power conversion efficiency. In this paper, a methyl-ammonium lead iodide (CH3NH3PbI3, MAPbI3) organic perovskite film was fabricated using a two-step sequential process on top of the poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) hole-transporting layer. Experimentally, water and potassium halides (KCl, KBr, and KI) were incorporated into the PbI2 precursor solution. With only 2 vol% water, the cell efficiency was effectively improved. Without water, the addition of all of the three potassium halides unanimously degraded the performance of the solar cells, although the crystallinity was improved. Co-doping with KI and water showed a pronounced improvement in crystallinity and the elimination of carrier traps, yielding a power conversion efficiency (PCE) of 13.9%, which was approximately 60% higher than the pristine reference cell. The effect of metal halide and water co-doping in the PbI2 layer on the performance of organic perovskite solar cells was studied. Raman and Fourier transform infrared spectroscopies indicated that a PbI2-dimethylformamide-water related adduct was formed upon co-doping. Photoluminescence enhancement was observed due to the co-doping of KI and water, indicating the defect density was reduced. Finally, the co-doping process was recommended for developing high-performance organic halide perovskite solar cells.

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