Nanoscale small molecule self-assembled ITO for photon harvesting in polymer and perovskite solar cells

Kesavan, AV and Adiga, V and Chandrasekar, GK and Panidhara, KM and Ramamurthy, PC (2022) Nanoscale small molecule self-assembled ITO for photon harvesting in polymer and perovskite solar cells. In: Solar Energy, 240 . pp. 201-210.

PDF sol_ene_240_201-210_2022.pdf - Published Version Restricted to Registered users only Download (2MB) | Request a copy

Abstract

Benefit of small molecule self-assembled monolayers as a buffer layer at the light entering electrode in a photovoltaic device improves the transparency. This results in improved JSC, as a result increased photovoltaics performance. In This work, 4-nitro benzoic acid (NBA) was investigated as an ITO work function modifier, in place of PEDOT:PSS, both in organic and perovskite photovoltaics. Self-assembled monolayer of NBA helps in work function reduction of ITO. Self-assembled monolayer of NBA forms a permanent dipole on the ITO surface consequently increases WF. Using NBA as an ITO work function modifier does not influence the device VOC. From obtained results it is noted that light absorption enhancement is the primary factor for PCE improvement. Results indicates that NBA can be used as work function modifier both in organic–inorganic hybrid perovskite photovoltaics and organic photovoltaics.

Item Type:	Journal Article
Publication:	Solar Energy
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to the Elsevier Ltd.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	20 Jun 2022 11:30
Last Modified:	20 Jun 2022 11:30
URI:	https://eprints.iisc.ac.in/id/eprint/73583

Actions (login required)

View Item