abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 08월 24일 19시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

A rapid synthesis of iron phosphate nanoparticles via surface mediated spontaneous reaction for the growth of high yield single walled carbon nanotubes

등록일
2005년 8월 11일 12시 00분 58초
접수번호
0809
발표코드
21P69포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅱ>
발표형식
포스터
발표분야
무기화학
저자 및
공동저자
양현진, 송현재, 신현준1, 최희철
포항공과대학교 화학과,
1포항가속기연구소 & 포항공과대학교 물리학과,
Direct formation of iron phosphate nanoparticles on hydroxyl-terminated SiO2/Si substrates with a narrow size distribution (average diameter = 2.2 nm) has been achieved by a simple room temperature spontaneous reaction of ferric chloride and phosphoric acid. Single-walled carbon nanotubes (SWNTs) are grown in high yield from the synthesized iron phosphate nanoparticles by thermal chemical vapor deposition (CVD) method as confirmed by AFM and Raman spectroscopy. Furthermore, three-terminal p-type nanotube network field effect transistor (FET) devices are successfully fabricated using the synthesized SWNTs by photolithography technique. The reduced solubility of Fe(III) ions when they form iron phosphate salts in aqueous media is the main driving force for the nanoparticle formation. Systematic control experiments have revealed that surface property, concentration and pH of the reaction solution equally play important roles the formation of nanoparticles.

상단으로