气候变化领域集成服务门户(CCPortal): Record-efficiency flexible perovskite solar cell and module enabled by a porous-planar structure as an electron transport layer

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DOI	10.1039/d0ee02164d
	Record-efficiency flexible perovskite solar cell and module enabled by a porous-planar structure as an electron transport layer
	Chung J.; Shin S.S.; Hwang K.; Kim G.; Kim K.W.; Lee D.S.; Kim W.; Ma B.S.; Kim Y.-K.; Kim T.-S.; Seo J.
发表日期	2020
ISSN	17545692
起始页码	4854
结束页码	4861
卷号	13 期号:12
英文摘要	A facile and low-temperature process to prepare planar perovskite solar cells (PSCs) has led to considerable progress in flexible solar cells toward high throughput production based on a roll-to-roll process. However, the performance of planar PSCs is still lower than that of mesoscopic PSCs using a high temperature process. Here, we report a new concept of a low temperature processed porous planar electron transport layer (ETL) inspired by a mesoporous structure for improving the performance of flexible devices. The structurally and energetically designed porous planar ETL induced the formation of a high quality perovskite and a preferred band alignment, resulting in improved charge collection efficiency in a fabricated device. Through the porous planar ETL, we achieved a power conversion efficiency (PCE) of 20.7% with a certified efficiency of 19.9% on a flexible substrate, which is the highest PCE reported to date. In addition, for the first time, we succeed in fabricating a large area flexible module with the porous planar ETL, demonstrating a PCE of 15.5%, 12.9% and 11.8% on an aperture area of 100 cm2, 225 cm2 and 400 cm2, respectively. We believe that this strategy will pave a new way for realizing highly efficient flexible PSCs. This journal is © The Royal Society of Chemistry.
英文关键词	Conversion efficiency; Efficiency; Electron transport properties; Low temperature production; Perovskite; Temperature; Throughput; Charge collection efficiency; Electron transport layers; Flexible solar cells; High temperature process; Low- temperature process; Mesoporous structures; Power conversion efficiencies; Roll-to-roll process; Perovskite solar cells; concentration (composition); detection method; efficiency measurement; electron; fuel cell; performance assessment; perovskite
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189444
作者单位	Division of Advanced Materials, Korea Research Institute of Chemical Technology, 141 Gajeong-Ro, Yuseong-Gu, Daejeon, 305-600, South Korea; Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291, Daehak-ro, Yuseong-Gu, Daejeon 34141, South Korea; Center Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, South Korea
推荐引用方式 GB/T 7714	Chung J.,Shin S.S.,Hwang K.,et al. Record-efficiency flexible perovskite solar cell and module enabled by a porous-planar structure as an electron transport layer[J],2020,13(12).
APA	Chung J..,Shin S.S..,Hwang K..,Kim G..,Kim K.W..,...&Seo J..(2020).Record-efficiency flexible perovskite solar cell and module enabled by a porous-planar structure as an electron transport layer.Energy & Environmental Science,13(12).
MLA	Chung J.,et al."Record-efficiency flexible perovskite solar cell and module enabled by a porous-planar structure as an electron transport layer".Energy & Environmental Science 13.12(2020).