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Title: Enhancement of photoresponse property of perovskite solar cell by aluminium chloride (AlCl 3 )
Authors: Ghosh S.S.
Sil A.
Published in: Semiconductor Science and Technology
Abstract: The fabrication of a three layer solar cell device is a new area of research. The formation of perovskite phase is evident from x-ray diffraction and its particle size is observed by microstructural analysis. A thin layer of gold coating over the device increases the surface conductivity. Direct contact between a SnCl 2 or AlCl 3 based perovskite with the gold coating increases the durability of the film but decreases the hole transport properties due to absence of an organic hole transport material. The absorbance spectroscopy analysis gives characteristic peaks showing the evidence of ITO, TiO 2 (rutile) and Sn 2+ complexes present in the Sn-perovskite film or Al 3+ complexes present within the Al-perovskite cell. The desired absorbance near 550 nm due to Al 3+ complexes causes a much higher flow of current on illumination and thus is also evidenced by the presence of comparatively high intensity PL spectra in the Al-perovskite system which occurred due to free exciton formation near band edge excitation. The fill factor of the devices is estimated as ∼0.83 and ∼0.65 for Sn-perovskite and Al-perovskite devices respectively. The PCE values of Sn-perovskite and Al-perovskite devices are calculated 0.39% and 0.96% respectively, which establish Al-perovskite film as a useful component for future solar cell device manufacturing. © 2018 IOP Publishing Ltd.
Citation: Semiconductor Science and Technology (2018), 33(5): -
Issue Date: 2018
Publisher: Institute of Physics Publishing
Keywords: aluminium chloride photoresponse
perovskite solar cell
tin chloride
ISSN: 2681242
Author Scopus IDs: 57199380562
Author Affiliations: Ghosh, S.S., Department of Metallurgical and Materials Engineering, IIT Roorkee, Roorkee, Uttarakhand, 247667, India
Sil, A., Department of Metallurgical and Materials Engineering, IIT Roorkee, Roorkee, Uttarakhand, 247667, India
Appears in Collections:Journal Publications [MT]

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