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Title: | Fabrication and characterization of ZnS and ZnSe absorber layers for UV-selective transparent photovoltaics | Authors: | BRAMMERTZ, Guy Shahjahan, Mohammad Bin Shams, Abdullah Garcia, Alex J. Lopez Perez-Rodriguez, Alejandro DE WILD, Jessica MEURIS, Marc POORTMANS, Jef VERMANG, Bart |
Issue Date: | 2023 | Publisher: | ELSEVIER SCIENCE SA | Source: | THIN SOLID FILMS, 767 (Art N° 139671) | Abstract: | We have fabricated ZnS, ZnSe and mixed Zn(S,Se) thin film layers for application as solar cell absorbers in ul-traviolet (UV)-selective solar cells. We fabricated the thin film layers using a two-step process involving evap-oration of the Zn layer followed by an anneal in an H2S and/or H2Se containing atmosphere. A study of the annealing conditions was performed to minimize hole formation in the thin film layer. A mixed Sulfur and Se-lenium containing layer was also developed in order to reach a 3 eV band gap, such that the layer absorbs all the UV light and leaves the visible light passing through. Next, we tried to increase the conductivity of the layer by adding extrinsic doping elements. Cu was found to increase the conductivity by more than three orders of magnitude, while leaving the transparency of the layer mostly unchanged. Finally, solar cell devices were fabricated using transparent back and front contacts and a NiO buffer layer. We could measure a very small photocurrent of about 100 mu A/cm2 and an open circuit voltage of about 500 mV under AM1.5 G illumination. | Notes: | Brammertz, G (corresponding author), Imo Imomec, Imec, Thor Pk 8320, B-3600 Genk, Belgium.; Brammertz, G (corresponding author), Hasselt Univ, Imo Imomec, Martelarenlaan 42, B-3500 Hasselt, Belgium.; Brammertz, G (corresponding author), Imo Imomec, EnergyVille, Thor Pk 8320, B-3600 Genk, Belgium. guy.brammertz@imec.be |
Keywords: | Zinc selenide;Zinc sulfide;Zn(SSe);Photovoltaics;Solar cell;Transparent photovoltaics | Document URI: | http://hdl.handle.net/1942/40230 | ISSN: | 0040-6090 | e-ISSN: | 1879-2731 | DOI: | 10.1016/j.tsf.2023.139671 | ISI #: | 000974745000001 | Rights: | 2023 Elsevier B.V. All rights reserved. | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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Fabrication and characterization of ZnS and ZnSe absorber layers for UV-selective transparent photovoltaics.pdf Restricted Access | Published version | 9.31 MB | Adobe PDF | View/Open Request a copy |
Microsoft Word - 20220727_Brammertz_TSF_2021_rev3.docx.pdf Until 2025-02-28 | Peer-reviewed author version | 1.3 MB | Adobe PDF | View/Open Request a copy |
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