From computational discovery to experimental characterization of a high hole mobility organic crystal.

Anatoliy N Sokolov, Sule Atahan-Evrenk, Rajib Mondal, Hylke B Akkerman, Roel S Sánchez-Carrera, Sergio Granados-Focil, Joshua Schrier, Stefan C B Mannsfeld, Arjan P Zoombelt, Zhenan Bao, Alán Aspuru-Guzik

Research output: Contribution to journalArticlepeer-review

270 Scopus citations

Abstract

For organic semiconductors to find ubiquitous electronics applications, the development of new materials with high mobility and air stability is critical. Despite the versatility of carbon, exploratory chemical synthesis in the vast chemical space can be hindered by synthetic and characterization difficulties. Here we show that in silico screening of novel derivatives of the dinaphtho[2,3-b:2',3'-f]thieno[3,2-b]thiophene semiconductor with high hole mobility and air stability can lead to the discovery of a new high-performance semiconductor. On the basis of estimates from the Marcus theory of charge transfer rates, we identified a novel compound expected to demonstrate a theoretic twofold improvement in mobility over the parent molecule. Synthetic and electrical characterization of the compound is reported with single-crystal field-effect transistors, showing a remarkable saturation and linear mobility of 12.3 and 16 cm(2) V(-1) s(-1), respectively. This is one of the very few organic semiconductors with mobility greater than 10 cm(2) V(-1) s(-1) reported to date.
Original languageEnglish (US)
JournalNature Communications
Volume2
Issue number1
DOIs
StatePublished - Aug 16 2011
Externally publishedYes

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