Performance Analysis of Planar Heterojunction Perovskite Solar Cell Featuring Double Hole Transport Layer & Backplan
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ORIGINAL PAPER
Performance Analysis of Planar Heterojunction Perovskite Solar Cell Featuring Double Hole Transport Layer & Backplane Gaurav Kumar 1 & Jaspinder Kaur 1 & Rikmantra Basu 1 Received: 30 July 2020 / Accepted: 3 November 2020 # Springer Nature B.V. 2020
Abstract Perovskite photovoltaic cells have attracted appreciable importance from many researchers in the recent decade due to its reduced thickness, very less fabrication cost, and impressive photovoltaic performance. In this work, the authors investigated the simulation-based performance analysis of solar cells with perovskite CH3NH3PbI3 material. In the given paper authors have proposed the design of SnO2 (electron transport layer)/ CH3NH3PbI3 (active layer)/ SiGe and Spiro-OMeTAD (hole transport layers)/ SiGeSn (Backplane) based solar cell may be grown on the glass substrate. The simulation of the predicted device is compared with the already existing perovskite solar cell performance parameters and comparatively higher conversion efficiency was obtained for the proposed structure. In this proposed work, the consequence of perovskite layer thickness, different doping concentrations of perovskite (active) layer, hole transport layers (HTLs), Ge mole fraction of SiGe hole transport layer, hole mobility of Spiro-OMeTAD layer and backplanes on the characteristic performance of the proposed solar cell have been analyzed. The maximum conversion efficiency of 28.57% is reported for the given structure, having an amalgamation of two non-identical hole transport layers which ensures considerable photon conversion efficiency. Hence, this current work would propose a stepping stone in the advancement of high-performance perovskite photovoltaic cells in comparison with the preexisting ones. Keywords Perovskite . SiGe . Spiro-OMeTAD . SnO2 . ETL . HTL . SiGeSn alloy . Power conversion efficiency
1 Introduction Enhancing the photoelectric conversion efficiency of solar cells is a critical issue on which scientific researchers have been working for a long [1–4]. In the last few decades, significant efforts have been made to improve the photovoltaic conversion efficiency of the solar cells [5]. However, it is very hard to achieve maximum photovoltaic conversion efficiency by picking up different materials and designs of the structure but with the advent of (PSCs), the circumstances
* Jaspinder Kaur [email protected] Gaurav Kumar [email protected] Rikmantra Basu [email protected] 1
Department of Electronics and Communication Engineering, National Institute of Technology Delhi, Delhi 110040, India
have changed dramatically [6–8]. The power conversion efficiency of PSCs has been increased considerably from 3.8% to 22.7% in the past few years [9, 10]. These advances are because of the excellent optoelectronic properties of the perovskite material (CH3NH3PbI3) as the long diffusion length of the charge carrier, the high absorption coefficient, the low recombination rates, the easy treatment, and the appropriate bandgap of about 1.55 eV [11–1
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