NDLI: 11.3% CdS ferroelectric-semiconductor coupling solar cell

Content Provider	IEEE Xplore Digital Library
Author	Biao Yang Jiali Shuai Fang Huang Xiangxin Liu Li Hui
Copyright Year	2015
Description	Author affiliation: Key Lab. of Solar Thermal Energy & Photovoltaic Syst., Inst. of Electr. Eng., Beijing, China (Biao Yang; Jiali Shuai; Fang Huang; Xiangxin Liu; Li Hui)
Abstract	Ferroelectric-semiconductor coupling solar cell is a novel concept of photovoltaic device, with nano piezoelectric particles embedded in light-absorbing semiconductors. In this work, we successfully realized such devices with S-rich CdSTe nano particles of hexagonal phase with wurtzite structure embedded in Te-rich CdSTe film of cubic phase with zinc blend structure through a high temperature phase segregation process. TEM analysis confirms phase segregation and formation of S-rich CdSTe particles in a size of 100nm, which distribute uniformly in the Te-rich CdSTe bulk layer. This photovoltaic mechanism has been proved by other microscopic and macroscopic evidences, which are presented in this report. More interestingly, tenability of conversion efficiencies, especially open circuit voltages, in such devices has been realized both after and during the fabrication process. By applying an external bias across the film during the formation of the ferroelectric particles, a linear relationship between Voc and the field strength has been observed. Meanwhile, such cells exhibit performance improvement over time in months after storage with encapsulation in ambient environment. The best conversion efficiency of CdS ferroelectric-semiconductor coupling solar cell has reached 11.3% by such in situ polarization technique.
Starting Page	1
Ending Page	6
File Size	1733974
Page Count	6
File Format	PDF
e-ISBN	9781479979448
DOI	10.1109/PVSC.2015.7355774
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power capacitors Annealing Force Microscopy Nickel Indexes Photovoltaic cells CdTe Ferroelectric-semiconductor coupling solar cell chloride treatment with external field phase segregation CdS
Content Type	Text
Resource Type	Article

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