Reactions of atomic hydrogen and nucleic acid bases with Ge(100) surface = Ge(100) 표면과 수소원자 및 nucleic acid bases의 상호작용에 관한 연구

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Kinetics of H2 (D2) desorption from a Ge(100)-2x1:H (D) surface studied using scanning tunneling microscopy and temperature programmed desorption The kinetics of H2 (D2) desorption from a Ge(100)-2x1:H (D) surface was studied using scanning tunneling microscopy (STM) and temperature programmed desorption (TPD). Inspection of STM images of surfaces at the saturation coverage of H (D) (~ 1.0 ML) revealed a 2x1 monohydride (monodeuteride) phase in which most H (D) atoms were paired on Ge-dimers. By counting the sites of H2 (D2) desorption in STM images taken after desorption of H2 (D2) at temperatures in the range Ts = 500 ? 550 K, the desorption of H2 (D2) was found to follow first order kinetics with an activation energy of Ed = 1.65 ± 0.1 eV (1.65 ± 0.1 eV) and a pre-exponential factor of Vd = (2.7 ± 0.5) x 1013 s-1 ((1.2 ± 0.5) x 1013 s-1). These values of Ed and Vd were used to simulate TPD spectra for the desorption of H2 (D2) from a Ge(100)-2x1:H (D) surface. The simulate
Advisors
Kim, Se-Hunresearcher김세훈researcher
Description
한국과학기술원 : 화학과,
Publisher
한국과학기술원
Issue Date
2004
Identifier
240559/325007  / 020005249
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 화학과, 2004.2, [ xii, 67 p. ]

Keywords

HYDROGEN; STM; GE(100); SURFACE; PYRIMIDINETORESIST; 피리미딘; 수소; 주사 탐침 현미경; 저메니움(100); 표면; FLUORESCENCE IMAGING

URI
http://hdl.handle.net/10203/31629
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=240559&flag=dissertation
Appears in Collection
CH-Theses_Ph.D.(박사논문)
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