Pentacene disproportionation during sublimation for field-effect transistors

LB Roberson, J Kowalik, LM Tolbert…

Index: Roberson, Luke B.; Kowalik, Janusz; Tolbert, Laren M.; Kloc, Christian; Zeis, Roswitha; Chi, Xiaoliu; Fleming, Richard; Wilkins, Charles Journal of the American Chemical Society, 2005 , vol. 127, # 9 p. 3069 - 3075

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Citation Number: 147

Abstract

At moderate temperatures in flowing gas, pentacene undergoes a disproportionation reaction to produce 6, 13-dihydropentacene (DHP) and a series of polycondensed aromatic hydrocarbons, including the previously unknown peripentacene (PP). The process requires activation by heating to 320° C and is possibly catalyzed by impurities such as DHP, 6, 13- pentacenequinone (PQ), Al, or Fe found in the starting materials. These impurities also ...