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Molecular Doping an...
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Zuo, GuangzhengLinköpings universitet,Komplexa material och system,Tekniska fakulteten
(författare)
Molecular Doping and Trap Filling in Organic Semiconductor Host-Guest Systems
- Artikel/kapitelEngelska2017
Förlag, utgivningsår, omfång ...
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2017-03-30
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American Chemical Society (ACS),2017
Nummerbeteckningar
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LIBRIS-ID:oai:research.chalmers.se:a5234c17-b7f6-452c-b640-c8059a4a5660
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https://doi.org/10.1021/acs.jpcc.7b01758DOI
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https://research.chalmers.se/publication/249738URI
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-137610URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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Funding Agencies|Chinese Scholarship Council (CSC); Knut och Alice Wallenbergs stiftelse (project "Tail of the Sun"); Swedish Research Council; Swedish Research Council Formas; Chalmers Area of Advance Energy
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We investigate conductivity and mobility of different hosts mixed with different electron-withdrawing guests in concentrations ranging from ultralow to high. The effect of the guest material on the mobility and conductivity of the host material varies systematically with the guests' LUMO energy relative to the host HOMO, in quantitative agreement with a recently developed model. For guests with a LUMO within similar to 0.5 eV of the host HOMO the dominant process governing transport is the competition between the formation of a deep tail in the host DOS and state filling. In other cases, the interaction with the host is dominated by any polar side groups on the guest and changes in the host morphology. For relatively amorphous hosts the latter interaction can lead to a suppression of deep traps, causing a surprising mobility increase by 1-2 orders of magnitude. In order to analyze our data, we developed a simple method to diagnose both the presence and the filling of traps.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Li, Z. J.Chalmers tekniska högskola,Chalmers University of Technology,Chalmers, Sweden
(författare)
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Andersson, OlofLinköpings universitet,Komplexa material och system,Tekniska fakulteten(Swepub:liu)oloan81
(författare)
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Abdalla, HassanLinköpings universitet,Komplexa material och system,Tekniska fakulteten(Swepub:liu)hasab54
(författare)
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Wang, Ergang,1981Chalmers tekniska högskola,Chalmers University of Technology,Chalmers, Sweden(Swepub:cth)ergang
(författare)
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Kemerink, MartijnLinköpings universitet,Komplexa material och system,Tekniska fakulteten(Swepub:liu)marke89
(författare)
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Linköpings universitetKomplexa material och system
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Journal of Physical Chemistry C: American Chemical Society (ACS)121:14, s. 7767-77751932-74471932-7455
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