低成本季硫对电极染料敏化太阳能电池的制备

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2014-12-01 DOI:10.1109/PEDES.2014.7042021

Krishnaiah Mokurala, A. Kamble, P. Bhargava, S. Mallick

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引用次数: 1

摘要

本研究的目的是开发一种含季硫Cu2ZnSnS4 (CZTS)的无铂(Pt)对电极，并研究致密层对器件性能的影响。采用溶剂热法合成了CZTS纳米颗粒，并利用XRD、拉曼光谱、FEG-SEM和FEG-TEM进行了广泛的表征。合成的CZTS颗粒呈纳米片状，由纳米棒组成。采用廉价滴铸法在掺氟氧化锡衬底上涂覆了CZTS薄膜。采用循环伏安法研究了CZTS对电极的电化学催化活性。以CZTS为对电极制备的染料敏化太阳能电池(DSSC)的光电转换效率为7.56%，而Pt基对电极的光电转换效率为8.34%。利用电化学阻抗谱研究了czts -电解质界面上的电荷输运。

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Fabrication of dye sensitized solar cells with cost-effective quaternary sulfide counter electrode

The objective of the present study is to develop a platinum (Pt)-free counter electrodes with quaternary sulfide Cu2ZnSnS4 (CZTS) and also to study the effect of compact layer on device performance. CZTS nanoparticles were synthesized by solvothermal process and extensive characterization using XRD, Raman Spectroscopy, FEG-SEM and FEG-TEM was carried out. Synthesized CZTS particles were in the form of nanosheets, consisting of nanorods, which was confirmed by FEG-TEM. CZTS films were coated on FTO (Fluorine doped tin oxide) substrate by inexpensive drop casting method. Electrochemical catalytic activity of CZTS counter electrode was studied using cyclic voltammetry. Dye sensitized solar cells (DSSC) fabricated with CZTS as counter electrode showed photo conversion efficiency of 7.56% as compared to Pt based counter electrode 8.34 % efficiency. The charge transport at CZTS-electrolyte interface was studied with the help of electrochemical impedance spectroscopy.

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2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)

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