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http://hdl.handle.net/1942/9992
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DC Field | Value | Language |
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dc.contributor.author | VANDEWAL, Koen | - |
dc.contributor.author | Tvingstedt, Kristofer | - |
dc.contributor.author | GADISA, Abay | - |
dc.contributor.author | Inganas, Olle | - |
dc.contributor.author | MANCA, Jean | - |
dc.date.accessioned | 2009-11-20T12:48:16Z | - |
dc.date.available | 2009-11-20T12:48:16Z | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | NATURE MATERIALS, 8(11). p. 904-909 | - |
dc.identifier.issn | 1476-1122 | - |
dc.identifier.uri | http://hdl.handle.net/1942/9992 | - |
dc.description.abstract | The increasing amount of research on solution-processable, organic donor-acceptor bulk heterojunction photovoltaic systems, based on blends of conjugated polymers and fullerenes has resulted in devices with an overall power-conversion efficiency of 6%. For the best devices, absorbed photon-to-electron quantum efficiencies approaching 100% have been shown. Besides the produced current, the overall efficiency depends critically on the generated photovoltage. Therefore, understanding and optimization of the open-circuit voltage (V-oc) of organic solar cells is of high importance. Here, we demonstrate that charge-transfer absorption and emission are shown to be related to each other and V-oc in accordance with the assumptions of the detailed balance and quasi-equilibrium theory. We underline the importance of the weak ground-state interaction between the polymer and the fullerene and we confirm that V-oc is determined by the formation of these states. Our work further suggests alternative pathways to improve V-oc of donor-acceptor devices. | - |
dc.language.iso | en | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | On the origin of the open-circuit voltage of polymer-fullerene solar cells | - |
dc.type | Journal Contribution | - |
local.bibliographicCitation.authors | http://dx.doi.org/10.1038/NMAT2548 | - |
dc.identifier.epage | 909 | - |
dc.identifier.issue | 11 | - |
dc.identifier.spage | 904 | - |
dc.identifier.volume | 8 | - |
local.format.pages | 6 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | [Vandewal, Koen; Gadisa, Abay; Manca, Jean V.] Hasselt Univ, Inst Mat Res, Vzw, IMEC IMOMEC, B-3590 Diepenbeek, Belgium. [Tvingstedt, Kristofer; Inganas, Olle] Linkoping Univ, Dept Phys Chem & Biol, COE, S-58183 Linkoping, Sweden. | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.bibliographicCitation.oldjcat | A1 | - |
dc.identifier.doi | 10.1038/NMAT2548 | - |
dc.identifier.isi | 000271050500021 | - |
item.accessRights | Closed Access | - |
item.validation | ecoom 2010 | - |
item.fulltext | No Fulltext | - |
item.fullcitation | VANDEWAL, Koen; Tvingstedt, Kristofer; GADISA, Abay; Inganas, Olle & MANCA, Jean (2009) On the origin of the open-circuit voltage of polymer-fullerene solar cells. In: NATURE MATERIALS, 8(11). p. 904-909. | - |
item.contributor | VANDEWAL, Koen | - |
item.contributor | Tvingstedt, Kristofer | - |
item.contributor | GADISA, Abay | - |
item.contributor | Inganas, Olle | - |
item.contributor | MANCA, Jean | - |
crisitem.journal.issn | 1476-1122 | - |
crisitem.journal.eissn | 1476-4660 | - |
Appears in Collections: | Research publications |
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