自组装制备硫化铜空穴传输层用于钙钛矿太阳能电池

Abstract

Abstract:

CuS was prepared by self-assembly method as the hole transport layer（HTL） for perovskite solar cells.This method has the advantages of low-cost and large scale preparation.The optical property and energy band structure of CuS were characterized by ultraviolet-visible absorption spectra and ultraviolet photoelectron spectroscopy measurements.The surface morphology of CuS film was observed by atom force microscopy.The photocurrent density-voltage characteristics were measured by Keithley 2410 source meter.The results showed that CuS had favourable transmissivity,suitable energy level and smooth surface morphology.The perovskite solar cells with CuS as HTL yielded the power conversion efficiency（PCE） of 14.97% with negligible hysteresis.After storing in air for 14 days,the device maintained over 80% of its pristine PCE,indicating excellent stability of the device.These results indicated that CuS films fabricated by self-assembling had superior property,providing a reference for further large scale fabrication and application of perovskite solar cells.

Key words: CuS, self-assembly, perovskite solar cells, stability

CLC Number:

TQ131.21

Chang Junwei,Yu Mingli,Guo Qiang. Self-assembly CuS as hole transport layer for perovskite solar cells[J]. Inorganic Chemicals Industry, 2019, 51(3): 25-28.

Figures/Tables 6

References 13

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项目		V_OC /V	J_S_C /（mA·cm^-2）	FF/%	PCE/%
CuS 层数	0	0.73	13.38	60.74	5.97
	1	0.96	18.81	61.40	11.04
	3	1.04	19.55	73.25	14.97
	5	1.04	19.17	67.42	13.44
扫描方向	FB到SC	1.04	19.55	73.25	14.97
扫描方向	SC到FB	1.04	19.69	72.21	14.79

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Inorganic Acid-Base-Salt Committee of CIESC

Self-assembly CuS as hole transport layer for perovskite solar cells

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