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- Jin, YingzhiLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten (author)
Limitations and Perspectives on Triplet-Material-Based Organic Photovoltaic Devices
- Article/chapterEnglish2019
Publisher, publication year, extent ...
- 2019-04-08
- WILEY-V C H VERLAG GMBH,2019
- electronicrdacarrier
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- LIBRIS-ID:oai:DiVA.org:liu-159287
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-159287URI
- https://doi.org/10.1002/adma.201900690DOI
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- Language:English
- Summary in:English
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- Funding Agencies|Knut and Alice Wallenberg foundation [2016.0059]; STINT funds for the Joint China-Sweden Mobility programme; Swedish Government Research Area in Materials Science on Functional Materials at Linkoping University Faculty Grant SFO-Mat-LiU [200900971]; China Scholarship Council (CSC); NSFC of China [51711530040, 51473086, 51773207, 91633301]; MOST [2017YFA0204702, 2018YFA0208504]
- Organic photovoltaic cells (OPVs) have attracted broad attention and become a very energetic field after the emergence of nonfullerene acceptors. Long-lifetime triplet excitons are expected to be good candidates for efficiently harvesting a photocurrent. Parallel with the development of OPVs based on singlet materials (S-OPVs), the potential of triplet materials as photoactive layers has been explored. However, so far, OPVs employing triplet materials in a bulk heterojunction have not exhibited better performance than S-OPVs. Here, the recent progress of representative OPVs based on triplet materials (T-OPVs) is briefly summarized. Based on that, the performance limitations of T-OPVs are analyzed. The shortage of desired triplet materials with favorable optoelectronic properties for OPVs, the tradeoff between long lifetime and high binding energy of triplet excitons, as well as the low charge mobility in most triplet materials are crucial issues restraining the efficiencies of T-OPVs. To overcome these limitations, first, novel materials with desired optoelectronic properties are urgently demanded; second, systematic investigation on the contribution and dynamics of triplet excitons in T-OPVs is necessary; third, close multidisciplinary collaboration is required, as proved by the development of S-OPVs.
Subject headings and genre
- NATURVETENSKAP Kemi Materialkemi hsv//swe
- NATURAL SCIENCES Chemical Sciences Materials Chemistry hsv//eng
- exciton diffusion length; exciton lifetime; organic photovoltaic cells; triplet excitons; triplet materials
Added entries (persons, corporate bodies, meetings, titles ...)
- Zhang, YanxinTsinghua Univ, Peoples R China (author)
- Liu, YanfengLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten(Swepub:liu)yanli17 (author)
- Xue, JieTsinghua Univ, Peoples R China (author)
- Li, WeiweiBeijing Univ Chem Technol, Peoples R China (author)
- Qiao, JuanTsinghua Univ, Peoples R China (author)
- Zhang, FenglingLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten(Swepub:liu)fenzh60 (author)
- Linköpings universitetBiomolekylär och Organisk Elektronik (creator_code:org_t)
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- In:Advanced Materials: WILEY-V C H VERLAG GMBH31:220935-96481521-4095
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