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Efficient Benzodithiophene/Benzothiadiazole-Based n-Channel Charge Transporters

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Sandoval Torrientes, Rafael and Calbo, Joaquín and Matsuda, Wakana and Choi, Wookjin and Santos, José and Seki, Shu and Ortí, Enrique and Martín, Nazario (2017) Efficient Benzodithiophene/Benzothiadiazole-Based n-Channel Charge Transporters. ChemPlusChem, 82 . pp. 1105-1111. ISSN 2192-6506

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/cplu.201700047/pdf



Abstract

A series of donor–acceptor small molecules based on electrondeficient 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 cm2V1 s 1 . Efficient electron transport properties are consistent with the low electron reorganization energies (0.11–0.17 eV) theoretically predicted.


Item Type:Article
Uncontrolled Keywords:conducting materials · density functional calculations · donor–acceptor systems · electrochemistry
Subjects:Sciences > Chemistry > Chemistry, Organic
ID Code:46358
Deposited On:06 Feb 2018 16:01
Last Modified:09 Feb 2018 09:10

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