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초록
Surface potential properties at the interface of pentacene thin films on gold (Au) and aluminum (Al) surfaces were investigated by using a near-field scanning microwave microprobe (NSMM). The surface potential formed across the pentacene film was observed by measuring the microwave reflection coefficient S11 and compared with the result of a Kelvin-probe method. The obtained reflection coefficient △S11 of the pentacene thin films on Al was decreased as the pentacene film thickness increased due to the increased accumulation of negative space charges, while for Au △S11 was essentially constant.
키워드
Organic pentacene; Near-field microwave microscope; Kelvin-probe method; Reflection coefficient S11; Surface potential; Organic pentacene; Near-field microwave microscope; Kelvin-probe method; Reflection coefficient S11; Surface potential
- 제목
- 유기물 Pentacene 박막과 금속 계면에서의 Space Charge 연구
- 제목 (타언어)
- A Study on Space Charge of Organic Pentacene/metal Interface
- 저자
- 윤영운; Arsen Babajayan; 이후능; 김송희; 이기진
- 발행일
- 2007-01
- 저널명
- 전기전자재료학회논문지
- 권
- 20
- 호
- 1
- 페이지
- 41 ~ 46