Work Function-Tunable Amorphous Carbon-Silver Nanocomposite Hybrid Electrode for Optoelectronic Applications

Kesavan, AV and Lee, BR and Son, KR and Khot, AC and Dongale, TD and Murugadoss, V and Ramamurthy, PC and Kim, TG (2021) Work Function-Tunable Amorphous Carbon-Silver Nanocomposite Hybrid Electrode for Optoelectronic Applications. In: ACS Applied Materials and Interfaces .

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Abstract

Parameters such as electrode work function (WF), optical reflectance, electrode morphology, and interface roughness play a crucial role in optoelectronic device design; therefore, fine-tuning these parameters is essential for efficient end-user applications. In this study, amorphous carbon-silver (C-Ag) nanocomposite hybrid electrodes are proposed and fully characterized for solar photovoltaic applications. Basically, the WF, sheet resistance, and optical reflectance of the C-Ag nanocomposite electrode are fine-tuned by varying the composition in a wide range. Experimental results suggest that irrespective of the variation in the graphite-silver composition, smaller and consistent grain size distributions offer uniform WF across the electrode surface. In addition, the strong C-Ag interaction in the nanocomposite enhances the nanomechanical properties of the hybrid electrode, such as hardness, reduced modulus, and elastic recovery parameters. Furthermore, the C-Ag nanocomposite hybrid electrode exhibits relatively lower surface roughness than the commercially available carbon paste electrode. These results suggest that the C-Ag nanocomposite electrode can be used for highly efficient photovoltaics in place of the conventional carbon-based electrodes. ©

Item Type:	Journal Article
Publication:	ACS Applied Materials and Interfaces
Publisher:	American Chemical Society
Additional Information:	The copyright of this article belongs to American Chemical Society
Keywords:	Amorphous carbon; Grain size and shape; Morphology; Nanocomposites; Optoelectronic devices; Reflection; Silver; Silver compounds; Surface roughness; Work function, Carbon paste electrode; Carbon-based electrodes; End-user applications; Grain size distribution; Nanocomposite electrodes; Nanomechanical property; Optoelectronic applications; Silver nanocomposites, Electrodes
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	16 Feb 2021 06:05
Last Modified:	16 Feb 2021 06:05
URI:	http://eprints.iisc.ac.in/id/eprint/67968

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