ChiaHChen | nsrrcsrd

Chia-Hao Chen (陳家浩), Ph. D.

Associate Research Scientist

Nano Science Group

Office: Room S325, R&D Building

E-Mail: chchen@nsrrc.org.tw,

Tel: +886-35780281-7325

End station

Education

1988-1992 B.S., Department of Physics, Tunghai University

1992-1994 M.S., Department of Nuclear Science, National Tsing Hua University

2000-2003 Dr. rer. nat., Department of Physics, Technische Universität, Berlin, Germany

Employment

2003-2015 Assistant Research Scientist at NSRRC

2015-now Associate Research Scientist at NSRRC

Research Interest

Tuning Si surface electronic structure by self-assembled monolayers (SAMs)

I have grown thiol-derived SAMs on bare Si (111) surface, with the aids of water contact angle measurement, synchrotron radiation based XPS and NEXAFS, I have determined the surface chemical structure, the molecular orientation, and the surface band alignment condition.

Engineering the electronic structure of optoelectronic semiconductors by van der Waals materials

I have successfully studied the Schottky barrier evolution induced by graphene flakes on n-type GaN surface. Based on this experience, I will further explore the electronic interactions of van der Waals materials on optoelectronic semiconductors.

Selected Publication

1. “Valence band discontinuity at the GaN/SiC(0001) heterojunction studied in-situ by synchrotron-radiation photoelectron spectroscopy“, C.-H. Chen,* L. Aballe, R. Klauser, T. U. Kampen, and K. Horn,* J. Electron. Spectr. Relat. Phenom., 144-147, 425-428(2005)

2. “ Exposure of Monomolecular Lithographic Patterns to Ambient: An X-ray Photoemission Spectromicroscopy Study“, C.-H. Chen,* M.-L. Huang, S.-C. Wang, R. Klauser, A. Shaporenko, and M. Zharnikov,* J. Phys. Chem., B 110, 17878(2006).

3. “Enhanced chemical shift of carbon nanotube from laser assisted gas incorporation”, Cheng-Hao Chuang, Chia-Hao Chen,* Yin-Ming Chang, Chih-Wei Peng, Sheng-Syun Wong, Shien-Der Tzeng, Shangjr Gwo, Yanwu Zhu, Chorng-Haur Sow,* and Minn-Tsong Lin,* Appl. Phys. Lett. 91, 183101 (2007)

4. “Absence of Fermi-Level Pinning at Cleaved Nonpolar InN Surfaces”, Chung-Lin Wu, Hong-Mao Lee, Cheng-Tai Kuo, Chia-Hao Chen, and Shangjr Gwo,* Phys. Rev. Lett., 101, 106803 (2008)

5. ”Multilength-Scale Chemical Patterning of Self-Assembled Monolayers by Spatially Controlled Plasma Exposure: Nanometer to Centimeter Range”, Meng-Hsien Lin, Chi-Fan Chen, Hung-Wei Shiu, Chia-Hao Chen, and Shangjr Gwo,* J. Am. Chem. Soc., 131, 10984 (2009)

6. “Preparation and Characterization of a Highly Ordered 1-dodecanethiol Monolayer on Bare Si(111) Surface”, Jie Ling Lou, Hung Wei Shiu, Lo Yueh Chang, Chia Ping Wu, Yun-Liang Soo, and Chia-Hao Chen,* Langmuir 27, 3436 (2011)

7. “Local interdiffusion at buried TiN/Si interfaces with scanning probes”, Chia-Hao Chen,* C-E Cheng, C-C Hsu, M-N Chang, H W Shiu and F S-S Chien,* J. Phys. D: Appl. Phys. 45, 215307 (2012)

8. “Does scandium resemble transition or rare earth metals when it is grown on silicon surfaces?”, H. W. Shiu, L. Y. Chang, J. L. Lou, C. P. Wu, and C.-H. Chen,* J. Appl. Phys. 113, 043701 (2013)

9. “Graphene as tunable transparent electrode material on GaN: Layer-number-dependent optical and electrical properties”, Hung Wei Shiu, Lo Yueh Chang, Kai-Hsuan Lee, Hung-Ying Chen, Shangjr Gwo, and Chia-Hao Chen,* Appl. Phys. Lett. 103, 081604 (2013)

10. “Mapping polarization induced surface band bending on the Rashba semiconductor BiTeI”, Christopher John Butler, Hung-Hsiang Yang, Jhen-Yong Hong, Shih-Hao Hsu, Raman Sankar, Chun-I Lu, Hsin-Yu Lu, Kui-Hon Ou Yang, Hung-Wei Shiu, Chia-Hao Chen, Chao-Cheng Kaun, Guo-Jiun Shu, Fang-Cheng Chou and Minn-Tsong Lin*, Nature Comm. 5, 4066 (2014)