K Xiao,
Y Liu, T Qi, W Zhang, F Wang… - Journal of the …, 2005 - ACS Publications
We present the synthesis and characterization of a fused-ring compound, dithieno [2, 3-d: 2 ',
3 '-d '] thieno [3, 2-b: 4, 5-b '] dithiophene (pentathienoacene, PTA). In contrast to pentacene …