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http://hdl.handle.net/1942/31260
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DC Field | Value | Language |
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dc.contributor.author | Genene, Zewdneh | - |
dc.contributor.author | Negash, Asfaw | - |
dc.contributor.author | Abdulahi, Birhan A. | - |
dc.contributor.author | THIRUVALLUR EACHAMBADI, Ragha | - |
dc.contributor.author | Liu, Zhen | - |
dc.contributor.author | Van den Brande, Niko | - |
dc.contributor.author | D'HAEN, Jan | - |
dc.contributor.author | Wang, Ergang | - |
dc.contributor.author | VANDEWAL, Koen | - |
dc.contributor.author | MAES, Wouter | - |
dc.contributor.author | MANCA, Jean | - |
dc.contributor.author | Mammo, Wendimagegn | - |
dc.contributor.author | Admassie, Shimelis | - |
dc.date.accessioned | 2020-06-03T08:51:32Z | - |
dc.date.available | 2020-06-03T08:51:32Z | - |
dc.date.issued | 2020 | - |
dc.date.submitted | 2020-03-20T16:01:16Z | - |
dc.identifier.citation | ORGANIC ELECTRONICS, 77 (Art N° 105572) | - |
dc.identifier.issn | 1566-1199 | - |
dc.identifier.uri | http://hdl.handle.net/1942/31260 | - |
dc.description.abstract | Two novel high gap donor polymers - PBDTTSi-TzBI and PBDTTS-TzBI, based on imide-fused benzotriazole (TzBI) with asymmetric side chains and alkylsilyl (Si) or alkylthio (5) substituted 4,8-di(thien-2-yl)benzo-[1,2-b:4,5-b']dithiophene (BDTT) - are successfully synthesized. The effect of the side chain variation on the photophysical, morphological and photovoltaic properties of blends of these polymers with fullerene and non-fullerene acceptors is investigated. The PBDTTSi-TzBI polymer shows a deeper highest occupied molecular orbital energy level, which results in higher open-circuit voltages. Nevertheless, the polymer solar cells fabricated using PBDTTS-TzBI in combination with PC71BM afford a higher power conversion efficiency of 7.3% (vs 4.0% for PBDTTSi-TzBI:PC71BM). By using the non-fullerene acceptor ITIC, the absorption of the blends extends to 850 nm and better device efficiencies are achieved, 6.9% and 9.6% for PBDTTSi-TzBI:ITIC and BDTTS-TzBI: ITIC, respectively. The better performance of the PBDTTS-TzBI:ITIC-based devices is attributed to the strong and broad absorption and balanced charge transport, and is among the best performances reported for non-fullerene solar cells based on TzBI-containing polymer donors. | - |
dc.description.sponsorship | ZG and AN contributed equally to this work. The authors acknowledge financial support from Hasselt University (BOF bilateral scientific cooperation). WM, SA, ZG, BA and AN gratefully acknowledge financial support from the International Science Program (ISP), Uppsala University, Sweden. WM, NV, KV and JM thank the Research Foundation Flanders (FWO -Vlaanderen) for continuous financial support (projects G.0B67.15 N, G.0D01.18 N and G.0B27.18 N). | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.rights | 2019 Elsevier B.V. All rights reserved. | - |
dc.subject.other | High gap polymers | - |
dc.subject.other | Organic photovoltaics | - |
dc.subject.other | Side chain optimization | - |
dc.subject.other | Alkylthio | - |
dc.subject.other | Alkylsilyl | - |
dc.subject.other | Non-fullerene solar cells | - |
dc.title | Comparative study on the effects of alkylsilyl and alkylthio side chains on the performance of fullerene and non-fullerene polymer solar cells | - |
dc.type | Journal Contribution | - |
dc.identifier.volume | 77 | - |
local.format.pages | 8 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | Negash, A (reprint author), Addis Ababa Univ, Dept Chem, POB 33658, Addis Ababa, Ethiopia.; Negash, A; Maes, W (reprint author), Hasselt Univ, Inst Mat Res IMO IMOMEC, Agoralaan 1,Bldg D, B-3590 Diepenbeek, Belgium. | - |
dc.description.notes | asfaw.negashassegde@uhasselt.be; wouter.maes@uhasselt.be | - |
dc.description.other | Negash, A (reprint author), Addis Ababa Univ, Dept Chem, POB 33658, Addis Ababa, Ethiopia; Hasselt Univ, Inst Mat Res IMO IMOMEC, Agoralaan 1,Bldg D, B-3590 Diepenbeek, Belgium. asfaw.negashassegde@uhasselt.be; wouter.maes@uhasselt.be | - |
local.publisher.place | RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
local.bibliographicCitation.artnr | 105572 | - |
dc.source.type | Article | - |
dc.identifier.doi | 10.1016/j.orgel.2019.105572 | - |
dc.identifier.isi | WOS:000517965600007 | - |
dc.contributor.orcid | Van den Brande, Niko/0000-0002-5324-6261; Wang, | - |
dc.contributor.orcid | Ergang/0000-0002-4942-3771; Genene, Zewdneh/0000-0001-9776-4709 | - |
dc.identifier.eissn | 1878-5530 | - |
local.provider.type | wosris | - |
local.uhasselt.uhpub | yes | - |
local.uhasselt.international | yes | - |
item.fullcitation | Genene, Zewdneh; Negash, Asfaw; Abdulahi, Birhan A.; THIRUVALLUR EACHAMBADI, Ragha; Liu, Zhen; Van den Brande, Niko; D'HAEN, Jan; Wang, Ergang; VANDEWAL, Koen; MAES, Wouter; MANCA, Jean; Mammo, Wendimagegn & Admassie, Shimelis (2020) Comparative study on the effects of alkylsilyl and alkylthio side chains on the performance of fullerene and non-fullerene polymer solar cells. In: ORGANIC ELECTRONICS, 77 (Art N° 105572). | - |
item.contributor | Genene, Zewdneh | - |
item.contributor | Negash, Asfaw | - |
item.contributor | Abdulahi, Birhan A. | - |
item.contributor | THIRUVALLUR EACHAMBADI, Ragha | - |
item.contributor | Liu, Zhen | - |
item.contributor | Van den Brande, Niko | - |
item.contributor | D'HAEN, Jan | - |
item.contributor | Wang, Ergang | - |
item.contributor | VANDEWAL, Koen | - |
item.contributor | MAES, Wouter | - |
item.contributor | MANCA, Jean | - |
item.contributor | Mammo, Wendimagegn | - |
item.contributor | Admassie, Shimelis | - |
item.validation | ecoom 2021 | - |
item.accessRights | Open Access | - |
item.fulltext | With Fulltext | - |
crisitem.journal.issn | 1566-1199 | - |
crisitem.journal.eissn | 1878-5530 | - |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
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genene.pdf Restricted Access | Published version | 2.27 MB | Adobe PDF | View/Open Request a copy |
Revised manuscript Asfaw Negash et al.pdf | Peer-reviewed author version | 1.45 MB | Adobe PDF | View/Open |
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