abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 02월 22일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Electrical rectification of fullerene[60] derivative on SAM of saturated molecules

등록일
2008년 2월 12일 11시 09분 46초
접수번호
0870
발표코드
26P75포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅳ>
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
Sandhyarani Acharya, 송현욱1, 이정필1, 이탁희1, Shashadhar Samal2, 이재석1
광주과학기술원 신소재공학과, PIMS,
1광주과학기술원 신소재공학과&PIMS,
2Berhampur University, India,
The electrical rectification property of a fullerene derivative, 1,4,11,15,30-pentakis(4-hydroxyphenyl)-2H-1,2,4,11,15,30-hexahydro-[60]fullerene, (4-HOC6H4)5HC60, is reported. The monolayer of this amphiphilic molecule on Au(111) substrate showed electrical rectification upto the tip bias voltage ± 2.0 V with rectification ratio ~ 11. Beyond this bias voltage, rectification ratio decreased steadily, until at ±2.5 V the current-voltage curve became symmetrical. In another set of experiments, the Au(111) substrate was modified by self-assembly of a number of thio-acids. On this modified substrate the fullerene derivative was either self-assembled, or the LB film of the derivative transferred. An improvement in the I-V characteristics measurement by CAFM was noticed in the bias voltage up to which rectification could be observed on the modified substrate. A comparative account of the I-V characteristics and the mechanism without and with substrate modification will be presented.

상단으로