[17a-A24-1~6] Organic and ionic thermoelectric materials and devices

10:55 AM - 11:25 AM JST(1:55 AM - 2:25 AM UTC)

[17a-A24-5] Development of n-type molecular dopants based on dipyranylidene derivatives

〇Kazuo Takimiya^1,2,3, Takaya Matuso² (1.RIKEN CEMS, 2.Tohoku Univ., 3.Tohoku Univ. AIMR)

Keywords:

organic semiconductor,electron dopant

We have tried to develop stable compounds that could function as electron dopants for n-type organic semiconductors based on the dipyranilidene framework. As a result, derivatives with an N,N-dimethylaminophenyl group showed a remarkable rise in the HOMO level and were found to function as an electron dopant for BBL, a typical n-type semiconducting polymer. A vapor-processible n-type dopant has also been found, and the contact resistance of C60-based TFTs has been successfully reduced.