화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2012년 봄 (04/25 ~ 04/27, 제주 ICC)
권호 18권 1호, p.517
발표분야 에너지
제목 Iodine Doped Polyaniline Thin Film Heterostructure Devices
초록 The deposition of undoped and iodine (I2)-doped polyaniline (PANI) on TiO2 thin film was carried out using plasma-enhanced chemical vapor deposition (PECVD) under different power inputs for the fabrication of p-polyaniline/n-TiO2 heterostructure devices. The significant changes in the structural and optical properties confirmed the I2 doping of PANI with strong bonding to the TiO2 nanomaterials. A device fabricated by PANI/TiO2 or I2-PANI/TiO2 thin film with a top platinum (Pt) layer exhibited nonlinear behavior of current (I)-voltage (V) curve, i.e., moderate diode behavior. Compared to Pt/PANI/TiO2 heterostructure device, the Pt/I2-PANI/TiO2 heterostructure device showed improved I-V properties with a considerably higher current of 0.050 mA, which might be attributed to the I2 doping-induced generation of large numbers of polarons in the PANI band gap.
저자 Sadia Ameen, 송민우, Firoz Khan, 김영순, 신형식
소속 전북대
키워드 Doping; Polyaniline; Heterostructure
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