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Surfactant-assisted doctor-blading-printed FAPbBr3 films for efficient semitransparent perovskite solar cells

Frontiers of Optoelectronics 2020年第3期13卷 272-281页

作者： Hangkai YING Yifan LIU Yuxi DOU Jibo ZHANG Zhenli WU Qi ZHANG Yi-Bing CHENG Jie ZHONG State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China School of Aerospace Transport and ManufacturingCranfield UniversityCranfieldBedfordshireMK430ALUK Department of Materials Science and Engineering Monash UniversityVIC 3800Australia

Organic-inorganic hybrid perovskite solar cells have generated wide interest due to the rapid development of their photovoltaic conversion ***,the majority of the reported devices have been fabricated via spin coating with a device areaofdoctor-blade-coating *** effects of different surfactants,such as I-α-phosphatidylcholine,polyoxyethylene sorbitan monooleate,sodium lauryl sulfonate,and hexadecyl trimethyl ammonium bromide,were studied during the printing *** the optimization of the blading temperature,crystal sizes of over 10μm and large-area perovskite films of5cm×5 cm were obtained using this *** printed FAPbBr3 solar cells exhibited a short-circuit current density of 8.22 mA/cm2,an open-circuit voltage of 1.175 V,and an efficiency of 7.29%.Subsequently,we replaced the gold with silver nanowires as the top electrode to prepare a semitransparent perovskite solar cell with an average transmittance(400-800 nm)of 25.42%,achieving a high-power efficiency of 5.11%.This study demonstrates efficient doctor-blading printing for preparing large-area FAPbBr3 films that possess high potential for applications in building integrated photovoltaics.

关键词： semitransparent printing perovskite solar cell(PSC) doctor blading wide bandgap

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Planar Perovskite Solar Cells Fabricated via Fullly doctor blading Process in Ambient Condition

Planar Perovskite Solar Cells Fabricated via Fullly Doctor B...

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第四届新型太阳能电池学术研讨会

作者： Yudiao Cheng Han Wu Chunhua Wang Sichao Tong Yongyi Peng Junliang Yang Hunan Key Laboratory for Super Microstructure and Ultrafast Process School of Physics and Electronics Central South University

Perovskite solar cells(PSCs) have attracted tremendous attention *** industrial-scale doctor blading is a facile and low-cost technique to fabricate thin-film *** our previous work, we used doctor blading technique to fabricate high-quality perovskite thin film in air for efficient planar heterojunction(PHJ) PSCs, in which hole transporting layer(HTL) and electron transporting layer(ETL) were deposited by spin-coating process .Herein, we demonstrate a methyammonium lead iodide precursor scheme coupled with solvent tuning to empower a prompt grain growth rate via doctor blading in ambient condition, resulting in semi-transparent perovskite thin film with superior ***, both HTL and ETL are deposited by doctor blading process in ambient condition as well, leading to fully doctor-bladed PHJ-PSCs with a structure of ITO/PEDOT:PSS/CHNHPbI/PCBM/Ag and achieving a power conversion efficiency(PCE) up to 10.9% at an active area of 0.09 *** results pave a way towards fully printed PSCs in ambient condition and accelerate the commercialization.

关键词： perovskite solar cell doctor blading ink formulation printing

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Flexible perovskite solar cells based on green,continuous roll-to-roll printing technology

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Journal of Energy Chemistry 2018年第4期27卷 971-989页

作者： Wei Zi Zhiwen Jin Shengzhong Liu Baomin Xu Energy-saving Building Materials Innovative Collaboration Center of Henan Province.Xinyang Normal University Xinyang 464000HenanChina Department of Materials Science and Engineering.Southern University of Science and Technology Shenzhen 518055GuangdongChina Dalian Institute of Chemical Physics.Dalian National Laboratory for Clean Energy Chinese Academy of SciencesDalian 116023.LiaoningChina Key Laboratory of Applied Surface and Colloid Chemistry National Ministry of EducationShaanxi Engineering Lab for Advanced Energy TednologySchool of Materials Science and EngineeringShaanxi Normal University.Xi'an 710119ShaanxiChina

By designing and fabricating thin film electronic devices on a flexible substrate instead of more commonly used rigid substrate, flexible electronics produced has opened a field of special applications. In this article, we first reviewed available products that may be used as flexible substrates, their characteristics and unique advantages as supporting material for flexible electronic devices. Secondly, flexible perovskite solar cell is examined in detail, with special focus on its potential large-scale fabrication processes. In particular, a comprehensive review is provided on low cost solution printing techniques that is viewed highly as a viable tool for potential commercialization of the perovskite solar cells. Furthermore, a summary is given on green processing for the solution printing production of flexible perovskite devices.

关键词： Flexible substrate Perovskite solar cell doctor blading Slot-die coating Inkier printing

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Inverted polymer solar cells with employing of electrochemical-anodizing synthesized TiO_2 nanotubes

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Chinese Physics B 2016年第4期25卷 320-324页

作者： Mehdi Ahmadi Sajjad Rashidi Dafeh Hamed Fatehy Department of Physics Faculty of Science Vali-e-Asr University of Rafsanjan

An inverted structure of polymer solar cells based on Poly（3-hexylthiophene）（P3HT）：[6-6] Phenyl-（6） butyric acid methyl ester （PCBM） with using thin films of TiO2 nanotubes and nanoparticles as an efficient cathode buffer layer is developed. A total of three cells employing TiO2 thin films with different thickness values are fabricated. Two cells use layers of TiO2 nanotubes prepared via self-organized electrochemical-anodizing leading to thickness values of 203 and 423.7 nm, while the other cell uses only a simple sol-gel synthesized TiO2 thin film of nanoparticles with a thickness of 100 nm as electron transport layer. Experimental results demonstrate that TiO2 nanotubes with these thickness values are inefficient as the power conversion efficiency of the cell using 100-nm TiO2 thin film is 1.55%, which is more than the best power conversion efficiency of other cells. This can be a result of the weakness of the electrochemical anodizing method to grow nanotubes with lower thickness values. In fact as the TiO2 nanotubes grow in length the series resistance （Rs） between the active polymer layer and electron transport layer increases, meanwhile the fill factor of cells falls dramatically which finally downgrades the power conversion efficiency of the cells as the fill factor falls.

关键词： inverted polymer solar cells TiO2 nanotubes electrochemical-anodizing doctor blading

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