Impedance Spectroscopy for the Characterization of the All-Carbon Graphene-Based Solar Cell

Ilaria Matacena, Laura Lancellotti, Nicola Lisi, Paola Delli Veneri, Pierluigi Guerriero and Santolo Daliento
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Ilaria Matacena: Department Electrical Engineering and Information Technology, University Federico II, via Claudio 21, 80125 Naples, Italy
Laura Lancellotti: ENEA, Portici Research Center, P. le E. Fermi 1, 80055 Portici, Naples, Italy
Nicola Lisi: ENEA, Casaccia Research Center, Via Anguillarese 301, 00060 Rome, Italy
Paola Delli Veneri: ENEA, Portici Research Center, P. le E. Fermi 1, 80055 Portici, Naples, Italy
Pierluigi Guerriero: Department Electrical Engineering and Information Technology, University Federico II, via Claudio 21, 80125 Naples, Italy
Santolo Daliento: Department Electrical Engineering and Information Technology, University Federico II, via Claudio 21, 80125 Naples, Italy

Energies, 2020, vol. 13, issue 8, 1-8

Abstract: In this work, front contacts for graphene-based solar cells are made by means of colloidal graphite instead of gold. The performance is characterized by exploiting impedance spectroscopy and is compared to the standard gold contact technology. Impedance data are analysed through equivalent circuit representation in terms of lumped parameters, suitable to describe the complex impedance in the frequency range considered in the experiments. Using this approach, capacitance–voltage of the considered graphene–silicon solar cell is found and the barrier height forming at the graphene–silicon interface is extracted.

Keywords: impedance spectroscopy; graphene; solar cell; Nyquist plot; capacitance–voltage measurements (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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