Study of interfacial properties of organic/ inorganic semiconductor heterojunction: CuPc/SiC

• Main Authors: Liao, Huang-Shih, 廖煌時
• Other Authors: Professor Chiu-Ping Cheng
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/88358416566638894827

碩士 === 國立嘉義大學 === 光電暨固態電子研究所 === 95 === Organic-inorganic heterostructures with properties including ultra-fast optical response, chemical sensing, and biocompatibility. In this thesis, we use synchrotron-radiation photoemission spectro -scopy to study the interfacial properties of CuPc on a ��-SiC(001) 2x1 surface. The C 1s, N 1s, Cu 3p, Si 2p core-level and valence- band spectra have shown that the interaction between molecules and dangling bonds of SiC is strong at submonolayer. Above one- ML coverage, the interaction become week due to absence of free dangling bonds. At 13.3-ML coverage, only molecular orbitals of CuPc have been found, indicating that the CuPc molecular crystal has been formed. Strong shifts of the vacuum level show the formation of an interface dipole. The AFM images present that the growth molecule follow the standing-up growth model and is uniform.