Solution processed inorganic V2O (x) as interfacial function materials for inverted planar-heterojunction perovskite solar cells with enhanced efficiency

doi:10.1007/s12274-016-1181-z

	Solution processed inorganic V2O (x) as interfacial function materials for inverted planar-heterojunction perovskite solar cells with enhanced efficiency
	Peng, HT ; Sun, WH; Li, YL ; Ye, SY ; Rao, HX ; Yan, WB ; Zhou, HP ; Bian, ZQ ; Huang, CH
刊名	NANO RESEARCH
	2016-10-01
卷号	9 期号:10 页码:2960-2971
关键词	perovskite solar cells vanadium oxide hole transport layer band alignment hysteresis
ISSN号	1998-0124
DOI	10.1007/s12274-016-1181-z
英文摘要	An inverted planar heterojunction perovskite solar cell (PSC) is one of the most competitive photovoltaic devices exhibiting a high power conversion efficiency (PCE) and nearly free hysteresis in the voltage-current output. However, the band alignment between the transport materials and the perovskite absorber has not been optimized, resulting in a lower open-circuit voltage (V (oc)) than that of regular PSCs. To address this issue, we tune the band alignment in perovskite photovoltaic architecture by introducing bilayer structured transport materials, e.g., the hole transport material poly(ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/V2O5. In this study, solution processed inorganic V2O (x) interlayer is incorporated into PEDOT:PSS for achieving improved film surface properties as well as optical and electrical properties. For example, the work function (WF) was changed from 5.1 to 5.4 eV. A remarkably high PCE of 17.5% with nearly free hysteresis and a stabilized efficiency of 17.1% have been achieved. Electronic impedance spectra (EIS) demonstrate a significant increase in the recombination resistance after introducing the interlayer, associated with the high V (oc) output value of 1.05 V. Transient photocurrent and photovoltage measurements indicate that a comparable charge transport process and an inhibited recombination process occur in the PSC with the introduction of the V2O (x) interlayer.
语种	英语
出版者	TSINGHUA UNIV PRESS
WOS记录号	WOS:000385194100012
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/41983]
专题	化学研究所_工程塑料实验室
作者单位	1.Zhou, HP (reprint author), Peking Univ, Dept Energy & Resources Engn, Coll Engn, Beijing 100871, Peoples R China. 2.Bian, ZQ (reprint author), Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China. 3.Zhou, HP (reprint author), Peking Univ, Dept Mat Sci & Engn, Coll Engn, Beijing 100871, Peoples R China.
推荐引用方式 GB/T 7714	Peng, HT,Sun, WH,Li, YL,et al. Solution processed inorganic V2O (x) as interfacial function materials for inverted planar-heterojunction perovskite solar cells with enhanced efficiency[J]. NANO RESEARCH,2016,9(10):2960-2971.
APA	Peng, HT.,Sun, WH.,Li, YL.,Ye, SY.,Rao, HX.,...&Huang, CH.(2016).Solution processed inorganic V2O (x) as interfacial function materials for inverted planar-heterojunction perovskite solar cells with enhanced efficiency.NANO RESEARCH,9(10),2960-2971.
MLA	Peng, HT,et al."Solution processed inorganic V2O (x) as interfacial function materials for inverted planar-heterojunction perovskite solar cells with enhanced efficiency".NANO RESEARCH 9.10(2016):2960-2971.