Integration of graphene with GZO as TCO layer and its impact on solar cell performance

Date

2022-01-01

Author

Zan, Recep
Olgar, Mehmet Ali
Altuntepe, Ali
Seyhan, Ayse
Turan, Raşit

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

214
views

0
downloads

In this study, we investigated the impact of incorporating graphene with Ga-doped ZnO (GZO) when employing them as a TCO layer on Si-based solar cell. GZO thin films with various thicknesses (50-450 nm) were fabricated by the sputtering method using a single target. The aim here was to determine the GZO film with the optimum thickness to incorporate it with single layer graphene as TCO. This thickness was found to be 350 nm as that was the best crystalline quality found in the Opattern. Further, this sample had the lowest sheet resistance and highest transmission values as confirmed by electrical (sheet resistance), and optical characterizations (transmission). Topographic (SEM and AFM), electrical (resistivity and carrier concentration) measurements were also conducted on the same sample. The graphene film grown on copper in a CVD system was then transferred on top of this sample to fabricate the hybrid TCO structure. We found that graphene integrated GZO hybrid TCO film showed higher sheet resistance due to high sheet resistance of graphene and similar optical properties thanks to high optical transmission of graphene. Employing graphene-based TCO layer in the solar cell resulted in higher open-circuit voltage, consequently improving the conversion efficiency from 10.0% to 11.2%. (c) 2021 Elsevier Ltd. All rights reserved.

Subject Keywords

Ga-doped ZnO (GZO), Graphene, Solar cell, Silicon, TCO, ZNO THIN-FILMS, ELECTRICAL-PROPERTIES, OXIDE, GA, AL, DEPENDENCE, THICKNESS

URI

https://hdl.handle.net/11511/94780

Journal

RENEWABLE ENERGY

DOI

https://doi.org/10.1016/j.renene.2021.09.101

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Analysis of boron doped hydrogenated amorphous silicon carbide thin film for silicon heterojunction solar cells Salimi, Arghavan; Turan, Raşit; Department of Micro and Nanotechnology (2019) Silicon based solar cells are the dominant type of solar cells in the photovoltaic industry. Recently, there have been increasing efforts to develop c-Si solar cells with higher efficiency and lower cost. Among them, silicon heterojunction solar cell (SHJ) is attracting much attention because of its superior performance values demonstrated at both R&D and industrial levels. One of the common limiting criteria is the recombination at the front side which can be solved by providing proper passivation at the f...
Fabrication and doping of thin crystalline Si films prepared by e-beam evaporation on glass substrate Sedani, Salar Habibpur; Turan, Raşit; Ünalan, Hüsnü Emrah; Department of Micro and Nanotechnology (2013) In this thesis study, fabrication and doping of silicon thin films prepared by electron beam evaporation equipped with effusion cells for solar cell applications have been investigated. Thin film amorphous Si (a-Si) layers have been fabricated by the electron beam evaporator and simultaneously doped with boron (B) and phosphorous (P) using effusion cells. Samples were prepared on glass substrates for the future solar cell operations. Following the deposition of a-Si thin film, crystallization of the films h...
Fabrication and characterization of PEDOT:PSS hole transport layers for silicon solar cells Türkay, Deniz; Yerci, Selçuk; Department of Micro and Nanotechnology (2019) Heterojunction silicon solar cells have gained considerable interest in recent years with the demonstration of record-high device performances. However, these devices are typically based on inorganic layers fabricated at high temperatures under vacuum environment, using toxic precursors. The low temperature budget, non-toxic chemical contents, and wide range of adjustability in physical and electrical properties make poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) a promising candidate a...
DEVELOPMENT AND EVALUATION OF LASER PROCESSED LIGHT MANAGEMENT INTERFACES FOR GRAPHENE/SILICON SCHOTTKY SOLAR CELLS Avishan, Nardin; Bek, Alpan; Ünalan, Hüsnü Emrah; Department of Micro and Nanotechnology (2022-12-20) Graphene/silicon Schottky solar cells are one of the extensively studied topics during the last decade due to the high conductivity, high transparency, and mechanical flexibility properties of graphene. One of the most efficient and long-lasting methods used for performance enhancement for graphene/silicon Schottky solar cells is silicon surface texturing. It significantly increases the light absorption of silicon by controlling the incoming light through multiple interactions which is called light trapping...
Simulation of an efficient silicon heterostructure solar cell concept featuring molybdenum oxide carrier-selective contact MEHMOOD, Haris; NASSER, Hisham; Tauqeer, Tauseef; HUSSAIN, Shahzad; Ozkol, Engin; Turan, Raşit (2018-03-25) Transition metal oxides/silicon heterocontact solar cells are the subject of intense research efforts owing to their simpler processing steps and reduced parasitic absorption as compared with the traditional silicon heterostructure counterparts. Recently, molybdenum oxide (MoOx, x<3) has emerged as an integral transition metal oxide for crystalline silicon (cSi)-based solar cell based on carrier-selective contacts (CSCs). In this paper, we physically modelled the CSC-based cSi solar cell featuring MoOx/intr...

Citation Formats

R. Zan, M. A. Olgar, A. Altuntepe, A. Seyhan, and R. Turan, “Integration of graphene with GZO as TCO layer and its impact on solar cell performance,” RENEWABLE ENERGY, vol. 181, pp. 1317–1324, 2022, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/94780.