Details

Autor(en) / Beteiligte

• Zhuo, Jing-Mei
• Zhao, Li-Hong
• Png, Rui-Qi
• Wong, Loke-Yuen
• Chia, Perq-Jon
• Tang, Jie-Cong
• Sivaramakrishnan, Sankaran
• Zhou, Mi
• Ou, Eric C.-W.
• Chua, Soo-Jin
• Sim, Wee-Sun
• Chua, Lay-Lay
• Ho, Peter K.-H.

Titel

Direct Spectroscopic Evidence for a Photodoping Mechanism in Polythiophene and Poly(bithiophene-alt-thienothiophene) Organic Semiconductor Thin Films Involving Oxygen and Sorbed Moisture

Ist Teil von

• Advanced materials (Weinheim), 2009-12, Vol.21 (46), p.4747-4752

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

2009

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• Direct infrared spectroscopic evidence has been obtained for photodoping of high mobility regioregular poly(3‐alkylthiophene) and poly[2,5‐bis(3‐alkyllthiophen‐2‐yl) thieno (3,2‐b)thiophene] with the attendant formation of hydroxide counter‐ions. This reveals the central role of dissolved water, explains the key features of degradation of the electrical characteristics of organic semiconductors in the ambient (see figure), and points to possible strategies to further improve their stability.