Title: Effect of processing parameters on photovoltaic properties of Sb2S3 quantum dot-sensitised inorganic-organic heterojunction solar cells

Authors: Kyungho Kim; Kyungeun Jung; Man-Jong Lee; Joon Mo Ahn

Addresses: Department of Advanced Technology Fusion, Konkuk University, Seoul, 143-701, South Korea ' Department of Advanced Technology Fusion, Konkuk University, Seoul, 143-701, South Korea ' Department of Advanced Technology Fusion, Konkuk University, Seoul, 143-701, South Korea; Division of Interdisciplinary Studies, Konkuk University, Seoul, 143-701, South Korea ' Agency for Defense Development, Yuseong, P.O. Box 35-44, Daejeon, 305-600, South Korea

Abstract: We synthesised Sb2S3 quantum dot sensitiser-coated mesoporous TiO2 (mp-TiO2) electrodes using chemical bath deposition (CBD) for use in all-solid-state heterojunction (P3HT/PEDOT:PSS/Sb2S3/mp-TiO2) solar cells. The cell processing parameters such as Sb2S3 sensitiser reaction time and annealing temperature were optimised for the synthesis of efficient sensitised photo-anodes. It was found that the microstructure, such as interior pores and surface over-layers of devices, plays an important role in the photovoltaic properties of all-solid-state heterojunction solar cells. Devices synthesised by the optimised process exhibited a power conversion efficiency (PCE) of 4.42%.

Keywords: Sb2S3 sensitisers; chemical bath deposition; CBD; heterojunction solar cells; process parameters; photovoltaic properties; quantum dots; tibnite; antimonite; antimony trisulphide; reaction time; annealing temperature; microstructure; power conversion efficiency; PCE.

DOI: 10.1504/IJNT.2016.077084

International Journal of Nanotechnology, 2016 Vol.13 No.4/5/6, pp.345 - 353

Published online: 19 Jun 2016 *

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