Hexathiapentacene: Structure, Molecular Packing, and Thin-Film Transistors
作者:Alejandro L. Briseno、Qian Miao、Mang-Mang Ling、Colin Reese、Hong Meng、Zhenan Bao、Fred Wudl
DOI:10.1021/ja066088j
日期:2006.12.1
In this communication we report the electrical characteristics of hexathiapentacene (HTP) and emphasize the unusual chemical structure and molecular packing. We report field-effect mobilities as high as 0.04 cm2 V-1 s-1 and current on/off ratios of >105. With crystallographic evidence of unusually long S-S bonds compared to normal S-S bonds, we have suggested a unique resonance structure similar to trithiapentalene, which well explains the bonding characteristics of HTP. This work appears to be the first to determine its molecular structure/packing mode and to study its application in organic transistors.