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Title: High electron mobility in ladder polymer field-effect transistors. Author: Babel A, Jenekhe SA. Journal: J Am Chem Soc; 2003 Nov 12; 125(45):13656-7. PubMed ID: 14599192. Abstract: Field-effect mobility of electrons as high as 0.1 cm2/(V s) is observed in n-channel thin film transistors fabricated from a solution spin-coated conjugated ladder polymer, poly(benzobisimidazobenzophenanthroline) (BBL), under ambient air conditions. This is the highest electron mobility observed to date in a conjugated polymer semiconductor. Comparative studies of n-channel thin film transistors made from a structurally similar nonladder conjugated polymer BBB gave an electron mobility of 10-6 cm2/(V s). These results demonstrate that electron transport can be as facile as hole transport in conjugated polymer semiconductors and that ladder architecture of a conjugated polymer can substantially enhance charge carrier mobility.[Abstract] [Full Text] [Related] [New Search]