KNALL, A.C., R.S. ASHRAF, M. NIKOLKA, C.B. NIELSEN, B. PURUSHOTHAMAN, A. SADHANALA, M. HURHANGEE, K. BROCH, D.J. HARKIN, Jiří NOVÁK, M. NEOPHYTOU, P. HAYOZ, H. SIRRINGHAUS and I. MCCULLOCH. Naphthacenodithiophene Based Polymers-New Members of the Acenodithiophene Family Exhibiting High Mobility and Power Conversion Efficiency. ADVANCED FUNCTIONAL MATERIALS. GERMANY: WILEY-V C H VERLAG GMBH, 2016, vol. 26, No 38, p. 6961-6969. ISSN 1616-301X. Available from: https://dx.doi.org/10.1002/adfm.201602285. |
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@article{1365432, author = {Knall, A.C. and Ashraf, R.S. and Nikolka, M. and Nielsen, C.B. and Purushothaman, B. and Sadhanala, A. and Hurhangee, M. and Broch, K. and Harkin, D.J. and Novák, Jiří and Neophytou, M. and Hayoz, P. and Sirringhaus, H. and McCulloch, I.}, article_location = {GERMANY}, article_number = {38}, doi = {http://dx.doi.org/10.1002/adfm.201602285}, keywords = {Semiconductors; polymers; solar cells; organic field effect transistors; UV-vis absorption; charge mobility; power conversion efficiency}, language = {eng}, issn = {1616-301X}, journal = {ADVANCED FUNCTIONAL MATERIALS}, title = {Naphthacenodithiophene Based Polymers-New Members of the Acenodithiophene Family Exhibiting High Mobility and Power Conversion Efficiency}, url = {http://onlinelibrary.wiley.com/doi/10.1002/adfm.201602285/abstract}, volume = {26}, year = {2016} }
TY - JOUR ID - 1365432 AU - Knall, A.C. - Ashraf, R.S. - Nikolka, M. - Nielsen, C.B. - Purushothaman, B. - Sadhanala, A. - Hurhangee, M. - Broch, K. - Harkin, D.J. - Novák, Jiří - Neophytou, M. - Hayoz, P. - Sirringhaus, H. - McCulloch, I. PY - 2016 TI - Naphthacenodithiophene Based Polymers-New Members of the Acenodithiophene Family Exhibiting High Mobility and Power Conversion Efficiency JF - ADVANCED FUNCTIONAL MATERIALS VL - 26 IS - 38 SP - 6961-6969 EP - 6961-6969 PB - WILEY-V C H VERLAG GMBH SN - 1616301X KW - Semiconductors KW - polymers KW - solar cells KW - organic field effect transistors KW - UV-vis absorption KW - charge mobility KW - power conversion efficiency UR - http://onlinelibrary.wiley.com/doi/10.1002/adfm.201602285/abstract L2 - http://onlinelibrary.wiley.com/doi/10.1002/adfm.201602285/abstract N2 - Wide-bandgap conjugated polymers with a linear naphthacenodithiophene (NDT) donor unit are herein reported along with their performance in both transistor and solar cell devices. The monomer is synthesized starting from 2,6-dihydroxynaphthalene with a double Fries rearrangement as the key step. By copolymerization with 2,1,3-benzothiadiazole (BT) via a palladium-catalyzed Suzuki coupling reaction, NDT-BT co-polymers with high molecular weights and narrow polydispersities are afforded. These novel wide-bandgap polymers are evaluated as the semiconducting polymer in both organic field effect transistor and organic photovoltaic applications. The synthesized polymers reveal an optical bandgap in the range of 1.8 eV with an electron affinity of 3.6 eV which provides sufficient energy offset for electron transfer to PC70BM acceptors. In organic field effect transistors, the synthesized polymers demonstrate high hole mobilities of around 0.4 cm(2) V-1 s(-1). By using a blend of NDT-BT with PC70BM as absorber layer in organic bulk heterojunction solar cells, power conversion efficiencies of 7.5% are obtained. This value is among the highest obtained for polymers with a wider bandgap (larger than 1.7 eV), making this polymer also interesting for application in tandem or multijunction solar cells. ER -
KNALL, A.C., R.S. ASHRAF, M. NIKOLKA, C.B. NIELSEN, B. PURUSHOTHAMAN, A. SADHANALA, M. HURHANGEE, K. BROCH, D.J. HARKIN, Jiří NOVÁK, M. NEOPHYTOU, P. HAYOZ, H. SIRRINGHAUS and I. MCCULLOCH. Naphthacenodithiophene Based Polymers-New Members of the Acenodithiophene Family Exhibiting High Mobility and Power Conversion Efficiency. \textit{ADVANCED FUNCTIONAL MATERIALS}. GERMANY: WILEY-V C H VERLAG GMBH, 2016, vol.~26, No~38, p.~6961-6969. ISSN~1616-301X. Available from: https://dx.doi.org/10.1002/adfm.201602285.
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