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http://hdl.handle.net/1942/31890
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DC Field | Value | Language |
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dc.contributor.author | Choubrac, Leo | - |
dc.contributor.author | Baer, Marcus | - |
dc.contributor.author | Kozina, Xeniya | - |
dc.contributor.author | Felix, Roberto | - |
dc.contributor.author | Wilks, Regan G. | - |
dc.contributor.author | BRAMMERTZ, Guy | - |
dc.contributor.author | Levcenko, Sergiu | - |
dc.contributor.author | Arzel, Ludovic | - |
dc.contributor.author | Barreau, Nicolas | - |
dc.contributor.author | Harel, Sylvie | - |
dc.contributor.author | MEURIS, Marc | - |
dc.contributor.author | VERMANG, Bart | - |
dc.date.accessioned | 2020-09-14T13:04:34Z | - |
dc.date.available | 2020-09-14T13:04:34Z | - |
dc.date.issued | 2020 | - |
dc.date.submitted | 2020-09-09T08:39:54Z | - |
dc.identifier.citation | ACS APPLIED ENERGY MATERIALS, 3 (6) , p. 5830 -5839 | - |
dc.identifier.uri | http://hdl.handle.net/1942/31890 | - |
dc.description.abstract | Current state-of-the-art Cu2ZnSn(S,Se)(4) kesterite solar cells are limited by low open-circuit voltages (V-OC). In order to evaluate to what extent the substitution of Sn by Ge is able to result in higher V oc values, this article focuses on Cu2ZnGeSe4 "CZGSe" devices. To reveal their full potential, different strategies are explored that, in particular, aim at the optimization of the CZGSe/buffer heterojunction. Here, employing hard X-ray photoelectron spectroscopy, it is evidenced that only a combination of different surface treatments is able to remove all detrimental secondary phases. Further improvements are achieved by establishing a solar cell heat treatment in air. A systematic study of the impact of different annealing temperatures and durations determines the best heat treatment parameters to be 60 min at 200 degrees C. Also, Zn(O,S,OH) as a more transparent alternative to the heavy-metal compound CdS buffer layer has been realized. Combining all of the strategies, solar cells with 8.5 and 7.5% total area efficiency have been prepared, which is a record for Sn-free kesterite solar cells and any kesterite solar cell with a Zn(O,S,OH) buffer, respectively. Beyond these records, this work clearly confirms the emerging trend that Ge-for-Sn substitution is a successful strategy to improve the V-OC of kesterite solar cells. | - |
dc.description.sponsorship | This project has received funding from the European Union's Horizon 2020 Research and Innovation Program under grant agreement no. 640868. | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.rights | 2020 American Chemical Society. | - |
dc.subject.other | kesterite | - |
dc.subject.other | CZGSe | - |
dc.subject.other | V-OC germanium | - |
dc.subject.other | high voltage | - |
dc.title | Sn Substitution by Ge: Strategies to Overcome the Open-Circuit Voltage Deficit of Kesterite Solar Cells | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 5839 | - |
dc.identifier.issue | 6 | - |
dc.identifier.spage | 5830 | - |
dc.identifier.volume | 3 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | Choubrac, L (corresponding author), Univ Nantes, UMR6502, CNRS, Inst Mat Jean Rouxel IMN, F-44300 Nantes, France.; Choubrac, L (corresponding author), Helmholtz Zentrum Berlin Mat & Energie GmbH, Dept Struct & Dynam Energy Mat, D-14109 Berlin, Germany. | - |
dc.description.notes | leo.choubrac@helmholtz-berlin.de | - |
dc.description.other | Choubrac, L (corresponding author), Univ Nantes, UMR6502, CNRS, Inst Mat Jean Rouxel IMN, F-44300 Nantes, France; Helmholtz Zentrum Berlin Mat & Energie GmbH, Dept Struct & Dynam Energy Mat, D-14109 Berlin, Germany. leo.choubrac@helmholtz-berlin.de | - |
local.publisher.place | 1155 16TH ST, NW, WASHINGTON, DC 20036 USA | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.identifier.doi | 10.1021/acsaem.0c00763 | - |
dc.identifier.isi | WOS:000543715100081 | - |
dc.contributor.orcid | Vermang, Bart/0000-0003-2669-2087; Choubrac, Leo/0000-0003-3236-6376; | - |
dc.contributor.orcid | Felix, Roberto/0000-0002-3620-9899 | - |
dc.identifier.eissn | - | |
local.provider.type | wosris | - |
local.uhasselt.uhpub | yes | - |
local.description.affiliation | [Choubrac, Leo; Arzel, Ludovic; Barreau, Nicolas; Harel, Sylvie] Univ Nantes, UMR6502, CNRS, Inst Mat Jean Rouxel IMN, F-44300 Nantes, France. | - |
local.description.affiliation | [Choubrac, Leo; Levcenko, Sergiu] Helmholtz Zentrum Berlin Mat & Energie GmbH, Dept Struct & Dynam Energy Mat, D-14109 Berlin, Germany. | - |
local.description.affiliation | [Baer, Marcus; Kozina, Xeniya; Felix, Roberto; Wilks, Regan G.] Helmholtz Zentrum Berlin Mat & Energie GmbH HZB, Dept Interface Design, D-14109 Berlin, Germany. | - |
local.description.affiliation | [Baer, Marcus; Wilks, Regan G.] Helmholtz Zentrum Berlin Mat & Energie GmbH, Energy Mat Situ Lab Berlin EMIL, D-12489 Berlin, Germany. | - |
local.description.affiliation | [Baer, Marcus] Helmholtz Inst Erlangen Nurnberg Renewable Energy, D-12489 Berlin, Germany. | - |
local.description.affiliation | [Baer, Marcus] Friedrich Alexander Univ FAU Erlangen Nurnberg, Dept Chem & Pharm, D-91058 Erlangen, Germany. | - |
local.description.affiliation | [Brammertz, Guy; Meuris, Marc] IMFC Div IMOMEC, Partner Solliance, B-3590 Diepenbeek, Belgium. | - |
local.description.affiliation | [Brammertz, Guy; Meuris, Marc; Vermang, Bart] Hasselt Univ, Partner Solliance, B-3500 Hasselt, Belgium. | - |
local.description.affiliation | [Brammertz, Guy; Meuris, Marc; Vermang, Bart] Energy Ville, B-3600 Genk, Belgium. | - |
item.fullcitation | Choubrac, Leo; Baer, Marcus; Kozina, Xeniya; Felix, Roberto; Wilks, Regan G.; BRAMMERTZ, Guy; Levcenko, Sergiu; Arzel, Ludovic; Barreau, Nicolas; Harel, Sylvie; MEURIS, Marc & VERMANG, Bart (2020) Sn Substitution by Ge: Strategies to Overcome the Open-Circuit Voltage Deficit of Kesterite Solar Cells. In: ACS APPLIED ENERGY MATERIALS, 3 (6) , p. 5830 -5839. | - |
item.fulltext | With Fulltext | - |
item.validation | ecoom 2021 | - |
item.contributor | Choubrac, Leo | - |
item.contributor | Baer, Marcus | - |
item.contributor | Kozina, Xeniya | - |
item.contributor | Felix, Roberto | - |
item.contributor | Wilks, Regan G. | - |
item.contributor | BRAMMERTZ, Guy | - |
item.contributor | Levcenko, Sergiu | - |
item.contributor | Arzel, Ludovic | - |
item.contributor | Barreau, Nicolas | - |
item.contributor | Harel, Sylvie | - |
item.contributor | MEURIS, Marc | - |
item.contributor | VERMANG, Bart | - |
item.accessRights | Open Access | - |
crisitem.journal.issn | 2574-0962 | - |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Manuscript_revised.pdf | Peer-reviewed author version | 594.08 kB | Adobe PDF | View/Open |
leo.pdf Restricted Access | Published version | 1.15 MB | Adobe PDF | View/Open Request a copy |
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