Reducing energy loss and stabilising the perovskite/poly (3-hexylthiophene) interface through a polyelectrolyte interlayer

doi:10.1039/d0ta01860k

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Reducing energy loss and stabilising the perovskite/poly (3-hexylthiophene) interface through a polyelectrolyte interlayer
	Zhang, Wenxiao ; Wan, Li ; Fu, Sheng ; Li, Xiaodong ; Fang, Junfeng
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2020
卷号	8 期号:14 页码:6546-6554
关键词	HOLE-TRANSPORT MATERIAL SOLAR-CELLS HALIDE PEROVSKITE HIGH-EFFICIENCY ENHANCED PERFORMANCE HIGHLY EFFICIENT POLY(3-HEXYLTHIOPHENE) DEGRADATION HYBRID DOPANT
DOI	10.1039/d0ta01860k
英文摘要	Efficient hole transport materials in n-i-p structured perovskite solar cells (PSCs) have been confined to 2,2 ',7,7 '-tetrakis(N,N-di-p-methoxyphenylamine)-9,9 '-spirobifluorene (Spiro-OMeTAD) and poly(triarylamine) (PTAA). However, the need for hygroscopic dopants has limited improvements in the stability of the devices. Here, we have successfully fabricated stable PSCs using a dopant-free poly (3-hexylthiophene) (P3HT) HTL. Through introducing a polyelectrolyte buffer layer (P3CT-BN), the P3HT film morphology, perovskite built-in electric field, surficial defects and the hole transfer speed were all optimized, along with significant suppression of interfacial recombination. Hence, the efficiency was improved from 13.13% to 19.23%, with a substantially improved V-OC from 0.90 V to 1.10 V and FF from 63.1% to 74.2%. Simultaneously, the un-encapsulated devices also exhibited improved stability, retaining 80% of the peak PCE in the atmosphere (50% relative humidity) for 2300 h or heating at 85 degrees C in N-2 for 400 h and 79% of the original PCE under simultaneous damp heat (60 degrees C/60-70% humidity) in air.
学科主题	Chemistry ; Energy & Fuels ; Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19800]
专题	2020专题
作者单位	1.Fang, JF (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China. 2.Fang, JF (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 3.Fang, JF (corresponding author), East China Normal Univ, Minist Educ, Engn Res Ctr Nanophoton & Adv Instrument, Sch Phys & Elect Sci, Shanghai 200241, Peoples R China.
推荐引用方式 GB/T 7714	Zhang, Wenxiao,Wan, Li,Fu, Sheng,et al. Reducing energy loss and stabilising the perovskite/poly (3-hexylthiophene) interface through a polyelectrolyte interlayer[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020,8(14):6546-6554.
APA	Zhang, Wenxiao,Wan, Li,Fu, Sheng,Li, Xiaodong,&Fang, Junfeng.(2020).Reducing energy loss and stabilising the perovskite/poly (3-hexylthiophene) interface through a polyelectrolyte interlayer.JOURNAL OF MATERIALS CHEMISTRY A,8(14),6546-6554.
MLA	Zhang, Wenxiao,et al."Reducing energy loss and stabilising the perovskite/poly (3-hexylthiophene) interface through a polyelectrolyte interlayer".JOURNAL OF MATERIALS CHEMISTRY A 8.14(2020):6546-6554.