Education:
Ph.D., University of Pennsylvania - 1981 (Physics, General)
B.S., National Taiwan University - 1973 (Physics)
Areas of Expertise:
Raymond Tung's research is focused on (1) Interface control: the experimental control of electronic properties at materials interfaces through the use of interlayers and unconventional techniques; and (2) simple model calculations, hitherto used only in molecular chemistry, can be applied to material interfaces. In particular, partitioning methods based on charge density are expected to allow us to understand the chemistry at material interfaces and learn how to design interfaces better.
Books and Publications
Tung, R. T. (2021). "From NiSi2 experiments to density functional theory calculations: How the Schottky barrier mystery was solved." Journal of Vacuum Science & Technology A 39(2): 020803.
(Books and Publications: Article (Peer-reviewed)) 2021
Tung, R. T. and L. Kronik (2021). "Fermi Level Pinning for Zincblende Semiconductors Explained with Interface Bonds." Physical Review B - Condensed Matter and Materials Physics 103(8): 085301 (Books and Publications: Article (Peer-reviewed)) 2021
Tung, R. T. and L. Kronik (2021). "Quantitative explanation of the Schottky barrier height." Physical Review B 103(3): 035304.
(Books and Publications: Article (Peer-reviewed)) 2021
"Bulklike Band Offset Mystery Solved Through Energy Minimization: Lessons from Perovskite Oxide Heterojunctions" Raymond T. Tung and L. Kronik, Physical Review B 99, 115302 (2019).
(Books and Publications: Article (Peer-reviewed)) 2019
Charge Density and Band Offsets at Heterovalent Semiconductor Interfaces, Raymond T. Tung, and Leeor Kronik, Adv. Theory Simul. 1, 1700001 (2018).
(Books and Publications: Article (Peer-reviewed)) 2018
Atomic nature of the Schottky barrier height formation of the Ag/GaAs(001)-2x4 interface: an in-situ synchrotron radiation photoemission study, C. -P. Cheng, W. -S. Chen, K. -Y. Lin, G. -J. Wei, Y. -T. Cheng, Y. -H Lin, H. -W. Wan, T. -W. Pi, R. T. Tung, J. Kwo, and M. Hong, Appl. Surf. Sci. 393, 294 (2017). (Books and Publications: Article (Peer-reviewed)) 2017
Band offset formation at semiconductor heterojunctions through density-based minimization of interface energy, R. T. Tung and L. Kronik, Phys. Rev. B 94, 075310 (2016). (Books and Publications: Article (Peer-reviewed)) 2016
"The Physics and Chemistry of the Schottky Barrier Height." Applied Physics Reviews 1: 011304. (Books and Publications: Article (Peer-reviewed)) 2014
Long, Wei, Yang Li and Raymond T. Tung. "Schottky Barrier Height Systematics Studied by Partisan Interlayer." Thin Solid Films 557: 254. (Books and Publications: Forthcoming Publications) 2014
Li, Y., W. Long and R.T. Tung. "Effect of Metal Interaction on the Schottky Barrier Height on Adsorbate Terminated Silicon Surfaces." Applied Surface Science 284: 720. (Books and Publications: Article (Peer-reviewed)) 2013
Long, W., Y. Li and R.T. Tung. "Modification of Schottky Barrier Height on Si(111) by Ga Termination." Surface Science 610: 48. (Books and Publications: Article (Peer-reviewed)) 2013
Li, Y., W. Long and R.T. Tung. "Inhomogeneous Ohmic Contacts: Barrier Height and Contact Area Determination." Applied Physics Letters 101.5: 051604. (Books and Publications: Article (Peer-reviewed)) 2012
Li, Yang, Wei Long and Raymond T. Tung. "Controlled Modification of Schottky Barrier Height by Partisan Interlayer." Solid State Communications 151: 1641-44. (Books and Publications: Article (Peer-reviewed)) 2011
Puniredd, S.R., I. Platzman, R.T. Tung, and H. Haick. "Bidirectional Control of Silicon's Surface Potential by Means of Molecular Coverage." Journal of Physical Chemistry C 114.43: 18674-78. (Books and Publications: Article (Peer-reviewed)) 2010
Bashouti, M.Y., R.T. Tung and H. Haick. "Tuning the Electrical Properties of Si Nanowire Field-effect Transistors by Molecular Engineering." SMALL 5.23: 2761-69. (Books and Publications: Article (Peer-reviewed)) 2009
Natan, A., L. Kronik, H. Haick and R.T. Tung. "Electrostatic Properties of Ideal and Non-ideal Polar Organic Monolayers: Implications for Electronic Devices." Advanced Materials 19: 4103. (Books and Publications: Article (Peer-reviewed)) 2007
Haick, H., J.P. Pelz, T. Ligonzo, M. Ambrico, D. Cahen, W. Cai, C. Marginean, C. Tivarus, and R.T. Tung. "Controlling Au/n-GaAs Junctions by Partial Molecular Monolayers." Physica Status Solidi (a) 203: 3438-51. (Books and Publications: Article (Peer-reviewed)) 2006
Haick, H., M. Ambrico, T. Ligonzo, R.T. Tung and D. Cahen. "Controlling Semiconductor/Metal Junction Barriers by Incomplete, Nonideal Molecular Monolayers." Journal of the American Chemical Society 128: 6854-69. (Books and Publications: Article (Peer-reviewed)) 2006
Hashimoto, S., K. Egashira, T. Tanaka, R. Etoh, Y. Hata and R.T. Tung "Epitaxial Silicide Formation on Recoil-implanted Substrates." Journal of Applied Physics 97: 024911. (Books and Publications: Article (Peer-reviewed)) 2005
Ogun, Samil E. and Raymond T. Tung. "Combined UHV and Liquid Phase (CULP) Processing of Self-assembled Nanostructures." Proceedings of the Materials Research Society Symposium 879E, Z10.36.1. (Books and Publications: Article (Peer-reviewed)) 2005
Conferences, Seminars and Symposiums
"Solving the Schottky Barrier Mystery", Plenary Talk delivered at New Frontiers of Natural Sciences 1st International Selcuk Meeting, Konya, Turkey, October 18, 2022. (Conferences, Seminars and Symposiums: Invited Talk) 2022
"Unraveling the Schottky Barrier Mystery", Plenary Talk delivered World Congress on Applied Nanotechnology, Ataturk University, Erzurum, Turkey, at Nov. 26, 2021 (Conferences, Seminars and Symposiums: Invited Talk) 2021
Plenary Talk "Band Offset Bulk-Like Mystery Solved through Energy Minimization", at 2nd International Congress on Semiconductor Materials and Devices, August 28-29, 2018, University of Ardahan, Ardahan, Turkey (Conferences, Seminars and Symposiums: Invited Talk) 2018
Plenary Talk "International Congress on Semiconducting Materials and Devices", Konya, Turkey (August 2017) (Conferences, Seminars and Symposiums: Invited Talk) 2017
Advanced Research Center for Oxides, Tokyo Insitute of Technology, Suzukake-dai, Japan, (Nov. 2016) (Conferences, Seminars and Symposiums: Invited Talk) 2016
Research Center for Quantum Effect Electronics, Tokyo Institute of Technology, Ookayama, Japan (Nov. 2016) (Conferences, Seminars and Symposiums: Invited Talk) 2016
Workshop on Schottky barriers on Ge and related materials, University of Tokyo, Hongo, Japan, (Nov. 2016) (Conferences, Seminars and Symposiums: Invited Talk) 2016
International Semiconductor Science & Technology Conference, Kusadasi, Turkey (May 2015) (Conferences, Seminars and Symposiums: Invited Talk) 2015
"Quantum Aspects of Schottky Barrier Formation" plenary talk. International Semiconductor Science & Technology Conference. Istanbul, Jan. 13-15. (Conferences, Seminars and Symposiums: Invited Talk) 2014
"Quantum Description of Electronic States at Metal-semiconductor Interfaces." Materials Interface and Physics Seminar. Weizmann Institute of Science. Rehovoth, Israel, Jan. 2014. (Conferences, Seminars and Symposiums: Invited Talk) 2014
"Schottky Barrier Height Adjustment Through Interface Structure Engineering." 6th International Symposium on Control of Semiconductor Interfaces (ISCSI-VI). Fukuoka, Kyushu, Japan, June 2-6. (Conferences, Seminars and Symposiums: Invited Talk) 2013
Long, Wei, Yang Li and Raymond Tung. "Schottky Barrier Height Systematics Studied by Partisan Interlayer." 6th International Symposium on Control of Semiconductor Interfaces (ISCSI-VI). Fukuoka, Kyushu, Japan, June 2-6. (Conferences, Seminars and Symposiums: Conference Presentation) 2013
Li, Y., W. Long and R.T. Tung. "Meta-stable Interfaces Between Soft-contact and Closed-shell Semiconductor Surfaces." Materials Research Society Spring Meeting. San Francisco, April 13. (Conferences, Seminars and Symposiums: Conference Presentation) 2009
Li, Y., W. Long and R.T. Tung. "Temperature and Interlayer Control of Schottky Barrier Height." American Physical Society March Meeting. Pittsburgh, March 16. (Conferences, Seminars and Symposiums: Conference Presentation) 2009
"Current Schottky Barrier Concepts." APS March Meeting. Los Angeles, March 21-25. (Conferences, Seminars and Symposiums: Invited Talk) 2005
