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Ground State Host-G...
Ground State Host-Guest Interactions upon Effective Dispersion of Regioregular Poly(3-hexylthiophene) in Poly(9,9-dioctylfluorene-alt-benzothiadiazole)
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- Wu, L. F. (författare)
- Universidad Complutense de Madrid,Complutense University
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- Casado, S. (författare)
- Universidad Complutense de Madrid,Complutense University
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- Romero, B. (författare)
- Universidad Rey Juan Carlos,Rey Juan Carlos University
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Oton, J. M. (författare)
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- Morgado, J. (författare)
- Instituto Superior Tecnico,IT-Instituto de Telecomunicações
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- Müller, Christian, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Xia, R. (författare)
- Nanjing University of Posts and Telecommunications
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- Cabanillas-Gonzalez, J. (författare)
- Universidad Complutense de Madrid,Complutense University
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(creator_code:org_t)
- 2015-12-04
- 2015
- Engelska.
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Ingår i: Macromolecules. - : American Chemical Society (ACS). - 1520-5835 .- 0024-9297. ; 48:24, s. 8765-8772
- Relaterad länk:
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http://dx.doi.org/10...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Regioregular poly(3-hexylthiophene), (rr-P3HT), is widely regarded as an archetypical semiconducting electron-donor polymer in bulk heterojunction solar cells, mainly due to its notable exciton and charge transport properties. Conversely, its use in photonic/lighting devices received little interest owing to its low emission quantum yield in the solid state, related to its large tendency to self-organize into lamellar domains with highly nonemissive character. We present experimental evidence pointing to a large miscibility of P3HT in poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT), accompanied by mutual pi-pi interactions. Concomitant to this effect, the emission properties of P3HT:F8BT blends, which are attributed to heterogeneous interchain complexes, experience a significant improvement, with photoluminescence quantum efficiency (PLQE) values approaching 25% (almost a 7-fold efficiency enhancement with respect to neat/aggregated rr-P3HT). Our results open up new prospects for improved photonic properties through appropriate control of interchain interactions.
Ämnesord
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
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