气候变化领域集成服务门户(CCPortal): Interface Engineering for Both Cathode and Anode Enables Low-Cost Highly Efficient Solution-Processed CdTe Nanocrystal Solar Cells

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DOI	10.1002/adfm.201904018
	Interface Engineering for Both Cathode and Anode Enables Low-Cost Highly Efficient Solution-Processed CdTe Nanocrystal Solar Cells
	Rong, Zhitao; Guo, Xiuzhen; Lian, Shaoshan; Liu, Songwei; Qin, Donghuan; Mo, Yueqi; Xu, Wei; Wu, Hongbin; Zhao, Hong; Hou, Lintao
发表日期	2019
ISSN	1616-301X
卷号	29 期号:42
英文摘要	Low-cost solution-processed CdTe nanocrystal (NC) solar cells always suffer from a high interface energy barrier and unbalanced hole/electron transport as well as anisotropic atom diffusion on the CdTe surface due to the limited amount of hole/electron interface materials or the difficulty in interface processing. In this work, a novel strategy is first adopted with gradient electron transport layer (CdS/CdSe) modification in the cathode and a new crosslinkable hole transport polymer (P-TPA) implantation in the anode. The carrier recombination at interfaces is greatly decreased and thus the carrier collection is increased. Moreover, the light harvesting is improved both in short and long wavelength regions, making J(sc) and V-oc increase simultaneously. A champion solar cell shows a very high power conversion efficiency of 9.2% and an outstanding J(sc) of 25.31 mA cm(-2), which are among the highest values for all solution-processed CdTe NC solar cells with a superstrate structure, and the latter value is even higher than that of traditional thick CdTe thin-film solar cells (2 mu m) via the high temperature close space sublimation method. This work demonstrates that facile surface modifications in both the cathode and anode with stepped extraction and organic-inorganic hybridization are very promising in constructing next-generation highly efficient NC photovoltaic devices.
英文关键词	CdTe; interface engineering; nanocrystal; solar cells; solution processed
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
来源期刊	ADVANCED FUNCTIONAL MATERIALS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158801
作者单位	Qin, DH; Mo, YQ (corresponding author), South China Univ Technol, State Key Lab Luminescent Mat & Devices, Inst Polymer Optoelect Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China.; Hou, LT (corresponding author), Jinan Univ, Dept Phys,Siyuan Lab, Guangzhou Key Lab Vacuum Coating Technol & New En, Guangdong Prov Key Lab Opt Fiber Sensing & Commun, Guangzhou 510632, Guangdong, Peoples R China.
推荐引用方式 GB/T 7714	Rong, Zhitao,Guo, Xiuzhen,Lian, Shaoshan,et al. Interface Engineering for Both Cathode and Anode Enables Low-Cost Highly Efficient Solution-Processed CdTe Nanocrystal Solar Cells[J],2019,29(42).
APA	Rong, Zhitao.,Guo, Xiuzhen.,Lian, Shaoshan.,Liu, Songwei.,Qin, Donghuan.,...&Hou, Lintao.(2019).Interface Engineering for Both Cathode and Anode Enables Low-Cost Highly Efficient Solution-Processed CdTe Nanocrystal Solar Cells.ADVANCED FUNCTIONAL MATERIALS,29(42).
MLA	Rong, Zhitao,et al."Interface Engineering for Both Cathode and Anode Enables Low-Cost Highly Efficient Solution-Processed CdTe Nanocrystal Solar Cells".ADVANCED FUNCTIONAL MATERIALS 29.42(2019).