Dependence of performance of Sb2S3 thin film solar cell on blocking TiO2 layer

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dc.contributor.authorFarhana, M.A.
dc.contributor.authorBandara, J.
dc.date.accessioned2021-02-25T05:50:37Z
dc.date.available2021-02-25T05:50:37Z
dc.date.issued2020
dc.description.abstractThe demand for low cost, high efficiency solar cells is the power of thin film solar cells. In recent years, antimony sulfide (Sb2S3) has much attraction as light harvesting material in solar cell applications. Sb2S3 solar cells are reported with a dense blocking layer and mesoscopic TiO2 scaffold. But still, in both cases, the performance of Sb2S3 solar cells are unsatisfactory. However, planner Sb2S3 solar cells would be more competitive because it is simpler and has a higher open circuit voltage due to reduced charge carrier recombination. Herein, planner Sb2S3 solar cells have been successfully made using spin coated Sb2S3 as the absorber, dense blocking TiO2 (bl-TiO2) as the electron conductor and poly (3-hexathiophene) (P3HT) as the hole conductor. This study pinpointed the dependence of cell performance on the thickness of the blocking TiO2 layer. The bl-TiO2 was deposited by spin coating at rpm with a different number of spin coat cycles (1-5). The TiO2 precursor solution was prepared by mixing of Titanium IsoPropoxide (TTIP), of butol-1-ol and of diethanolamine. The blocking properties and thickness variation of the bl-TiO2 layers fabricated with a various number of spinning cycles were verified by cyclic voltammograms and UV-Vis spectra respectively. The optimization of the TiO2 blocking layer to enhance the device performance was carried out on the planner device consisting of FTO/bl-TiO2/Sb2S3/P3HT/Ag and the optimized device with of bl-TiO2 exhibited the power conversion efficiency of at 1 sun illumination. Keywords: Blocking TiO2, Planner structure, Performance, Sb2S3, and Spin coat cycleen_US
dc.identifier.isbn9789550481293
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/6090/proceeding_oct_08-452.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.relation.ispartofseries;International Research Conference
dc.subjectMaterials Sciencesen_US
dc.subjectMineral Sciencesen_US
dc.subjectSolar Systemen_US
dc.subjectEnergyen_US
dc.titleDependence of performance of Sb2S3 thin film solar cell on blocking TiO2 layeren_US
dc.title.alternativeInternational Research Conference 2020en_US
dc.typeOtheren_US
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