Burn‐in Free Nonfullerene‐Based Organic Solar Cells. Issue 19 (3rd July 2017)
- Record Type:
- Journal Article
- Title:
- Burn‐in Free Nonfullerene‐Based Organic Solar Cells. Issue 19 (3rd July 2017)
- Main Title:
- Burn‐in Free Nonfullerene‐Based Organic Solar Cells
- Authors:
- Gasparini, Nicola
Salvador, Michael
Strohm, Sebastian
Heumueller, Thomas
Levchuk, Ievgen
Wadsworth, Andrew
Bannock, James H.
de Mello, John C.
Egelhaaf, Hans‐Joachim
Baran, Derya
McCulloch, Iain
Brabec, Christoph J. - Abstract:
- Abstract: Organic solar cells that are free of burn‐in, the commonly observed rapid performance loss under light, are presented. The solar cells are based on poly(3‐hexylthiophene) (P3HT) with varying molecular weights and a nonfullerene acceptor (rhodanine‐benzothiadiazole‐coupled indacenodithiophene, IDTBR) and are fabricated in air. P3HT:IDTBR solar cells light‐soaked over the course of 2000 h lose about 5% of power conversion efficiency (PCE), in stark contrast to [6, 6]‐Phenyl C61 butyric acid methyl ester (PCBM)‐based solar cells whose PCE shows a burn‐in that extends over several hundreds of hours and levels off at a loss of ≈34%. Replacing PCBM with IDTBR prevents short‐circuit current losses due to fullerene dimerization and inhibits disorder‐induced open‐circuit voltage losses, indicating a very robust device operation that is insensitive to defect states. Small losses in fill factor over time are proposed to originate from polymer or interface defects. Finally, the combination of enhanced efficiency and stability in P3HT:IDTBR increases the lifetime energy yield by more than a factor of 10 when compared with the same type of devices using a fullerene‐based acceptor instead. Abstract : Organic solar cells based on a nonfullerene acceptor are presented that are free of burn‐in, the commonly observed rapid performance loss under light. The combination of enhanced efficiency and stability increases the lifetime energy yield by more than a factor of 10 when comparedAbstract: Organic solar cells that are free of burn‐in, the commonly observed rapid performance loss under light, are presented. The solar cells are based on poly(3‐hexylthiophene) (P3HT) with varying molecular weights and a nonfullerene acceptor (rhodanine‐benzothiadiazole‐coupled indacenodithiophene, IDTBR) and are fabricated in air. P3HT:IDTBR solar cells light‐soaked over the course of 2000 h lose about 5% of power conversion efficiency (PCE), in stark contrast to [6, 6]‐Phenyl C61 butyric acid methyl ester (PCBM)‐based solar cells whose PCE shows a burn‐in that extends over several hundreds of hours and levels off at a loss of ≈34%. Replacing PCBM with IDTBR prevents short‐circuit current losses due to fullerene dimerization and inhibits disorder‐induced open‐circuit voltage losses, indicating a very robust device operation that is insensitive to defect states. Small losses in fill factor over time are proposed to originate from polymer or interface defects. Finally, the combination of enhanced efficiency and stability in P3HT:IDTBR increases the lifetime energy yield by more than a factor of 10 when compared with the same type of devices using a fullerene‐based acceptor instead. Abstract : Organic solar cells based on a nonfullerene acceptor are presented that are free of burn‐in, the commonly observed rapid performance loss under light. The combination of enhanced efficiency and stability increases the lifetime energy yield by more than a factor of 10 when compared with the same type of devices using a fullerene‐based acceptor instead. … (more)
- Is Part Of:
- Advanced energy materials. Volume 7:Issue 19(2017)
- Journal:
- Advanced energy materials
- Issue:
- Volume 7:Issue 19(2017)
- Issue Display:
- Volume 7, Issue 19 (2017)
- Year:
- 2017
- Volume:
- 7
- Issue:
- 19
- Issue Sort Value:
- 2017-0007-0019-0000
- Page Start:
- n/a
- Page End:
- n/a
- Publication Date:
- 2017-07-03
- Subjects:
- degradation -- light‐soaking stability -- nonfullerene acceptor -- organic solar cells -- P3HT
Energy harvesting -- Materials -- Periodicals
Energy conversion -- Materials -- Periodicals
Energy storage -- Materials -- Periodicals
Photovoltaics -- Periodicals
Fuel cells -- Periodicals
Thermoelectric materials -- Periodicals
621.31 - Journal URLs:
- http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1614-6840/ ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1002/aenm.201700770 ↗
- Languages:
- English
- ISSNs:
- 1614-6832
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 0696.850700
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 5182.xml