scholarly journals Low-Temperature Graphene-Based Paste for Large-Area Carbon Perovskite Solar Cells

2021 ◽  
Author(s):  
Paolo Mariani ◽  
Leyla Najafi ◽  
Gabriele Bianca ◽  
Marilena Isabella Zappia ◽  
Luca Gabatel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Perovskite Solar Cells ◽  
Large Area

Low-temperature sprayed SnOx nanocomposite films with enhanced hole blocking for efficient large area perovskite solar cells

2021 ◽  
Author(s):  
Jinbao Zhang ◽  
Yichuan Ding ◽  
Guochen Jiang ◽  
Austin C. Flick ◽  
Ziyi Pan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Shelf Life ◽  
Perovskite Solar Cells ◽  
Spray Coating ◽  
Nanocomposite Films ◽  
Large Area ◽  
Blocking High ◽  
Ultrasonic Spray ◽  
Shelf Life Stability

Open-air, low temperature ultrasonic spray coating of SnO2/SnOx is demonstrated to fabricate large area PSCs and modules. The optimized SnO2/SnOx nanocomposite exhibits significantly enhanced hole-blocking, high efficiencies, as well as good shelf-life stability.

Bilayer Low-Temperature-Processed Metal Oxides as Electron Transporting Materials for Perovskite Solar Cells with Over 18% Efficiency

2020 ◽  
Vol 15 (6) ◽  
pp. 762-768
Author(s):  
Zhaoyang Zuo ◽  
Chunguo Yue ◽  
Xun Qiao ◽  
Dongrong Meng
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Blue Shift ◽  
Clean Energy ◽  
Control Device ◽  
Research Field ◽  
Large Area ◽  
Energy Devices

Solar cells which can generate electricity from absorbing sunlight is one of the most promising clean energy devices nowadays. During the last decade, a new type solar cell named metal halide perovskite solar cells (PSC) has undergo a tremendous development and now becoming a superstar in photovoltaic field. However, most of the high-efficiency PSC is made based on a high-temperature-processed (over 500 °C) TiO2 electron transporting materials (ETM), which hinders the further commercialization of this technology. Therefore, developing a low-temperature-processed ETM to replace the current TiO2 is urgently required in the PSC research field. In this work, the low-temperature-processed ZnO layer has been used as ETM first. It is found that the perovskite film spin-coated on the ZnO layer is not totally converted to perovskite with a little amount of residue PbI2, which is bad for PSCs. To solve this problem, we employed a ZnO/SnO2 bilayer as ETM to enhance the contact between ETM and perovskite film. It is clearly observed that the formation of perovskite (CH3NH3PbI3) on ZnO/SnO2 bilayer ETM is feasible and no PbI2 remining in the perovskite film after thermal annealing, as evidenced by X-ray diffraction (XRD) results. We further conduct Atomic Force Microscope (AFM) measurements of the films. The AFM images of CH3NH3PbI3 films deposited on ZnO and ZnO/SnO2 show that perovskite film is smoother on ZnO/SnO2 bilayer ETM. Furthermore, it is found that the PSC based on ZnO/SnO2 bilayer ETM shows a higher power conversion efficiency (PCE) of 18.0% compared to the 14.9% obtained in the control device based on pristine ZnO ETM. The enhancement of device performance with ZnO/SnO2 bilayer device is due to the improvement of device photovoltaic parameters. It is found that the fill factor of the target device with ZnO/SnO2 bilayer ETM is 80.7%, significantly improved from 69.2% of the control device based on pristine ZnO layer. This can be ascribed to the efficient charge extraction ability of ZnO/SnO2 bilayer ETM as demonstrated by the photoluminescence (PL) intensity of CH3NH3PbI3 spin coated on ZnO/SnO2 bilayer. The PL signal of perovskite on ZnO/SnO2 bilayer has an obvious blue shift, indicating that the perovskite on ZnO/SnO2 bilayer has less defects compared to perovskite in ZnO layer. Finally, by using the ZnO/SnO2 bilayer ETM, we successfully fabricated a large-area PSC with an active area of 1.2 cm2, exhibiting a PCE of 9.3%. Our results show a great potential of the ZnO/SnO2 bilayer ETM for both PSC and other optoelectronic devices.

scholarly journals Low-temperature-processed metal oxide electron transport layers for efficient planar perovskite solar cells

Rare Metals ◽  
2021 ◽  
Author(s):  
Jia-Xing Song ◽  
Xin-Xing Yin ◽  
Zai-Fang Li ◽  
Yao-Wen Li
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Metal Oxide ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Future Research ◽  
Low Temperature Preparation

Abstract As a promising photovoltaic technology, perovskite solar cells (pero-SCs) have developed rapidly over the past few years and the highest power conversion efficiency is beyond 25%. Nowadays, the planar structure is universally popular in pero-SCs due to the simple processing technology and low-temperature preparation. Electron transport layer (ETL) is verified to play a vital role in the device performance of planar pero-SCs. Particularly, the metal oxide (MO) ETL with low-cost, superb versatility, and excellent optoelectronic properties has been widely studied. This review mainly focuses on recent developments in the use of low-temperature-processed MO ETLs for planar pero-SCs. The optical and electronic properties of widely used MO materials of TiO2, ZnO, and SnO2, as well as the optimizations of these MO ETLs are briefly introduced. The commonly used methods for depositing MO ETLs are also discussed. Then, the applications of different MO ETLs on pero-SCs are reviewed. Finally, the challenge and future research of MO-based ETLs toward practical application of efficient planar pero-SCs are proposed. Graphical abstract

Toward Large-Area and Fully Solution-Sheared Perovskite Solar Cells

2021 ◽  
Author(s):  
Gizachew Belay Adugna ◽  
Seid Yimer Abate ◽  
Wen-Ti Wu ◽  
Yu-Tai Tao
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Large Area

Solvent Engineering of the Precursor Solution toward Large‐Area Production of Perovskite Solar Cells

2021 ◽  
Vol 33 (14) ◽  
pp. 2005410
Author(s):  
Lingfeng Chao ◽  
Tingting Niu ◽  
Weiyin Gao ◽  
Chenxin Ran ◽  
Lin Song ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Large Area ◽  
Solvent Engineering

scholarly journals Low Temperature Processed Fully Printed Efficient Planar Structure Carbon Electrode Perovskite Solar Cells and Modules

2021 ◽  
pp. 2101219
Author(s):  
Fu Yang ◽  
Lirong Dong ◽  
Dongju Jang ◽  
Begench Saparov ◽  
Kai Cheong Tam ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Perovskite Solar Cells ◽  
Planar Structure ◽  
Carbon Electrode

scholarly journals Dip coated SnO2 film as electron transport layer for low temperature processed planar perovskite solar cells

2021 ◽  
Vol 4 ◽  
pp. 100066
Author(s):  
A. Ashina ◽  
Ramya Krishna Battula ◽  
Easwaramoorthi Ramasamy ◽  
Narendra Chundi ◽  
S. Sakthivel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Perovskite Solar Cells ◽  
Sno2 Film ◽  
Transport Layer ◽  
Electron Transport Layer

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 Correction to “Strontium-Doped Low-Temperature-Processed CsPbI2Br Perovskite Solar Cells”

2019 ◽  
Vol 4 (5) ◽  
pp. 1215-1215 ◽  
Author(s):  
Cho Fai Jonathan Lau ◽  
Meng Zhang ◽  
Xiaofan Deng ◽  
Jianghui Zheng ◽  
Jueming Bing ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Perovskite Solar Cells

High-Efficiency Low-Temperature ZnO Based Perovskite Solar Cells Based on Highly Polar, Nonwetting Self-Assembled Molecular Layers

2017 ◽  
Vol 8 (5) ◽  
pp. 1701683 ◽  
Author(s):  
Randi Azmi ◽  
Wisnu Tantyo Hadmojo ◽  
Septy Sinaga ◽  
Chang-Lyoul Lee ◽  
Sung Cheol Yoon ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Self Assembled ◽  
Molecular Layers
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