Details

Autor(en) / Beteiligte

• Seo, Jung Hwa
• Gutacker, Andrea
• Walker, Bright
• Cho, Shinuk
• Garcia, Andres
• Yang, Renqiang
• Nguyen, Thuc-Quyen
• Heeger, Alan J
• Bazan, Guillermo C

Titel

Improved Injection in n-Type Organic Transistors with Conjugated Polyelectrolytes

Ist Teil von

• Journal of the American Chemical Society, 2009-12, Vol.131 (51), p.18220-18221

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2009

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• To improve injection in n-type organic thin film transistors (OTFTs), a thin conjugated polyelectrolyte (CPE) layer was interposed between electrodes and the semiconductor layer. OTFTs were fabricated with [6,6]-phenyl-C61 butyric acid methyl ester (PCBM) and Au source and drain contacts. We demonstrate that the insertion of CPEs beneath top-contact Au source/drain electrodes can be a very effective strategy for improving the carrier injection and reducing turn-on threshold voltages of n-channel OTFTs. Ultraviolet photoemission spectroscopy (UPS) indicates that the decrease of the electron injection barrier is consistent with organized dipoles at the metal/organic interface.