Polydispersed Metal Nanoparticles at the Interface for Improved Optoelectronic Properties in Perovskite Photovoltaics

Kesavan, AV and Rao, AD and Ramamurthy, PC (2018) Polydispersed Metal Nanoparticles at the Interface for Improved Optoelectronic Properties in Perovskite Photovoltaics. In: 4th IEEE International Conference on Emerging Electronics, ICEE 2018, 17-19 December 2018, Bengaluru.

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Abstract

Enhancing the light photons which are responsible for the generation of the exciton in the photoactive layer is one of the primary ways to increase the net power conversion efficiency of solar cell. Using plasmonic metal nanoparticle is one of the well-known method to improve the solar cell performance. In this work, poly-dispersed aluminium nanoparticles (AlNPs) were embedded at the PC61BM/Al interface to investigate the effect of it on solar cell performance. It is observed that device with AlNPs at the PC61BM/Al interface showed significant enhancement in optical absorption and as a result improved JSC. It is observed that Al nanoparticles at cathode interface aids in light trapping and also reduction in series resistance. These coupled effects of optical and electrical enhancement tend to improve power conversion efficiency in the device. From this study, it is noted that addition of AlNPs modifies deep trap state distribution in the active matrix. Further, this study shows that AlNPs incorporation with ETL improves the device power conversion efficiency (PCE) mainly through the optical enhancement.

Item Type:	Conference Paper
Publication:	2018 4th IEEE International Conference on Emerging Electronics, ICEE 2018
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords:	Carrier concentration; Conversion efficiency; Efficiency; Electric resistance; Light; Light absorption; Light scattering; Perovskite; Perovskite solar cells; Plasmonic nanoparticles; Plasmonics, Local surface plasmon resonances; Optical enhancements; Optoelectronic properties; Plasmonic; Power conversion efficiencies; Series resistances; Solar cell performance; Trap state, Metal nanoparticles
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	01 Aug 2022 08:57
Last Modified:	01 Aug 2022 08:57
URI:	https://eprints.iisc.ac.in/id/eprint/75096

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