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Efficient fully laser-patterned flexible perovskite modules and solar cells based on low-temperature solution-processed SnO2/mesoporous-TiO2 electron transport layers 被引量:7
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作者 Janardan Dagar Sergio Castro-Hermosa +6 位作者 Matteo Gasbarri Alessandro L. Palma Lucio Cina Fabio Matteocci Emanuele Calabro Aldo Di Carlo Thomas M. Brown 《Nano Research》 SCIE EI CAS CSCD 2018年第5期2669-2681,共13页
Efficient flexible perovskite solar cells and modules were developed using a combination of SnO2 and mesoporous-TiO2 as a fully solution-processed electron transport layer (ETL). Cells using such ETLs delivered a ma... Efficient flexible perovskite solar cells and modules were developed using a combination of SnO2 and mesoporous-TiO2 as a fully solution-processed electron transport layer (ETL). Cells using such ETLs delivered a maximum power conversion efficiency (PCE) of 14.8%, which was 30% higher than the PCE of cells with only SnO2 as the ETL. The presence of a mesoporous TiO2 scaffold layer over SnO2 led to higher rectification ratios, lower series resistances, and higher shunt resistances. The cells were also evaluated under 200 and 400 lx artificial indoor illumination and found to deliver maximum power densities of 9.77 μW/cm^2 (estimated PCE of 12.8%) and 19.2 μW/cm^2 (estimated PCE of 13.3%), respectively, representing the highest values among flexible photovoltaic technologies reported so far. Furthermore, for the first time, a fully laser-patterned flexible perovskite module was fabricated using a complete three-step laser scribing procedure (P1, P2, P3) with a PCE of 8.8% over an active area of 12 cm^2 under an illumination of 1 sun. 展开更多
关键词 SnO2/mesoporous-TiO2(meso-TiO2) electron transport layer flexible perovskite solar cell flexible perovskite module laser patterning indoor light harvesting
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Efficient fully blade-coated perovskite solar cells in air with nanometer-thick bathocuproine buffer layer 被引量:2
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作者 Sergio Castro-Hermosa Luana Wouk +5 位作者 Izabela Silva Bicalho Luiza de Queiroz Correa Bas de Jong Lucio Cina Thomas M.Brown Diego Bagnis 《Nano Research》 SCIE EI CAS CSCD 2021年第4期1034-1042,共9页
Fully printed perovskite solar cells(PSCs)were fabricated in air with all constituent layers,except for electrodes,deposited by the blade coating technique.The PSCs incorporated,for the first time,a nanometer-thick pr... Fully printed perovskite solar cells(PSCs)were fabricated in air with all constituent layers,except for electrodes,deposited by the blade coating technique.The PSCs incorporated,for the first time,a nanometer-thick printed bathocuproine(BCP)hole blocking buffer using blade coating and deposited at relative humidity up to 50%.The PSCs with a p-i-n structure(glass/indium tin oxide(ITO)/poly(3,4-ethylenedioxythiophene)polystyrene sulfonate(PEDOT:PSS)/CH_(3)NH_(3)Pbl_(3)/[6,6]-phenyl-C_(61)-butyric acid methyl ester(PCBM)/BCP/Ag)delivered a maximum power conversion efficiency(PCE)of 14.9%on an active area of 0.5 cm^(2)when measured under standard test conditions.The PSCs with a blade coated BCP delivered performance of 10%and 63%higher(in relative terms)than those incorporating a spin coated BCP or without any BCP film,respectively.The atomic force microscopy(AFM)showed that blade coated films were more homogeneous and acted also as a surface planarizer leading to a reduction of roughness which improved BCP/Ag interface lowering charge recombination.The demonstration of 15%efficient devices with all constituent layers,including nanometer-thick BCP(〜10 nm),deposited by blade coating in air,demonstrates a route for industrialization of this technology. 展开更多
关键词 PEROVSKITE BUFFER bathocuproine(BCP) blade coating printed electronics
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