Thin film organic-inorganic hybrid perovskite solar cells (CH3NH3PbX3, X= I/Cl/Br) has convulsed emerging photovoltaic technologies due to its unique and extensive feature such as high efficiency, low manufacturing cost, ease to fabricate, although the presence of lead (Pb) is a serious and hazardous drawback associated with it. In this experiment, hazards Pb has been replaced by tin (Sn) to fabricate eco-friendly perovskite solar cell (CH3NH3SnCl3) and details study of fabricated thin film has been performed at different thermal condition to optimize the photovoltaic performance. © 2017 Elsevier Ltd.

SUBHASIS ROY

Chemical Engineering

S A MOYEZ

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Materials Today: Proceedings

Fabrication of most-promising CH3NH3PbI3 based perovskite solar cell in ambient condition is excessively essential to industrialize this revolutionary development. In this research work, an efficient, facile and economical technique has been developed to fabricate CH3NH3PbI3 perovskite solar cell in ambient condition which is termed as dual-step thermal engineering technique. In this dual-step thermal engineering technique, the perovskite precursor solution has been spin coated over a mildly hot substrate which was heated at 60 ⁰C for 10 min and followed by annealing at 80 °C for 30 min immediately after spin coating and compared with the perovskite film fabricated by conventional annealing in which the film was heated once at 120 °C for 60 min after spin coating. The comparative study shows that the newly developed dual-step thermal engineering technique is highly efficient and forms smooth, dense, well-crystallize, almost pinhole free perovskite solar cell at open air condition and exhibit remarkable enhanced efficiency over conventional annealing. This is because the precursor solution spontaneously started to develop a perovskite layer over the substrate during spin coating similarly as epitaxial-growth by utilizing the kinetic energy of the hot substrate and it serves as foundation layer for the high quality device. © 2018 Elsevier B.V.

Solar Energy Materials and Solar Cells

Dual-step thermal engineering technique: A new approach for fabrication of efficient CH3NH3PbI3-based perovskite solar cell in open air condition

Tailoring the surface morphology with annealing temperature of the lead free perovskite solar cell, CH3NH3SnCl3 and its relation to the cell performance

Journal	Data powered by TypesetMaterials Today: Proceedings
Publisher	Data powered by TypesetElsevier Ltd
ISSN	2214-7853
Open Access	No