Efficient Benzodithiophene/Benzothiadiazole-Based n-Channel Charge Transporters
- PMID: 31961602
- DOI: 10.1002/cplu.201700047
Efficient Benzodithiophene/Benzothiadiazole-Based n-Channel Charge Transporters
Abstract
A series of donor-acceptor (D-A) small molecules based on electron-deficient benzothiadiazole (BTD) and electron-rich benzodithiophene (BDT) featuring an A-D-A structure is presented. Exhaustive spectroscopic, electrochemical, and computational studies evidence their electroactive nature and their ability to form well-ordered thin films with broad visible absorptions and low band gaps (ca. 2 eV). Time-resolved microwave conductivity (TRMC) studies unveil unexpected n-type charge transport displaying high electron mobilities around 0.1 cm2 V-1 s-1 . Efficient electron transport properties are consistent with the low electron reorganization energies (0.11-0.17 eV) theoretically predicted.
Keywords: conducting materials; density functional calculations; donor-acceptor systems; electrochemistry.
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
References
-
- None
-
- Y. Olivier, D. Niedzialek, V. Lemaur, W. Pisula, K. Müllen, U. Koldemir, J. R. Reynolds, R. Lazzaroni, J. Cornil, D. Beljonne, Adv. Mater. 2014, 26, 2119-2136;
-
- H. Sirringhaus, Adv. Mater. 2014, 26, 1319-1335;
-
- Y. Tsutsui, G. Schweicher, B. Chattopadhyay, T. Sakurai, J.-B. Arlin, C. Ruzié, A. Aliev, A. Ciesielski, S. Colella, A. R. Kennedy, V. Lemaur, Y. Olivier, R. Hadji, L. Sanguinet, F. Castet, D. Beljonne, J. Cornil, P. Samorì, S. Seki, Y. H. Geerts, Adv. Mater. 2016, 28, 7106-7114.
-
- None
Grants and funding
- ERC-320441-Chirallcarbon/ERC_/European Research Council/International
- ITN "MOLESCO" Project No. 606728/ERC_/European Research Council/International
- mdm-2015-0538/Ministerio de Educación, Cultura y Deporte
- CTQ2015-71154-P/Ministerio de Educación, Cultura y Deporte
- FOTOCARBON-CM S2013/MIT-2841/Consejería de Educación, Juventud y Deporte, Comunidad de Madrid (ES)
LinkOut - more resources
Full Text Sources
Research Materials
Miscellaneous
