Education:
Ph.D., City University of New York Graduate Center - 1987 (Electrical Engineering)
Areas of Expertise:
Designing, fabricating and characterizing semiconductor optoelectronic devices based on the fundamental understanding of semiconductor crystal structures, electronic states, electron-phonon and electron-photon interactions in semiconductors.
Books and Publications
Sun, Chivin, Zehra Cevher, Jin Zhang, Bo Gao, Kai Shum and Yuhang Ren. "One-pot Synthesis and Characterization of Chalcopyrite CuInS2 Nanoparticles." Journal of Materials Chemistry A, 2014. Advance Article. DOI: 10.1039/C4TA01062K. (Books and Publications: Article (Peer-reviewed)) 2014
Zhang, Jin, Chunhui Yu, Lili Wang, Yizhi Li, Yuhang Ren and Kai Shum, "Energy Barrier at the N719-dye/CsSnI3 Interface for Photogenerated Holes in Dye-sensitized Solar Cells." Scientific Reports 4: 6954. (Books and Publications: Article (Peer-reviewed)) 2014
Chonglong, Yu, Z. Chen and K. Shum. "Triply Resonant Raman Scattering in Perovskite Semiconductor CsSnI3." Journal of Raman Spectroscopy 44: 262. (Books and Publications: Article (Peer-reviewed)) 2013
Yu, Chonglong, Yuhang Ren, Zhuo Chen and Kai Shum. "First-principles Study of Structural Phase Transitions in CsSnI3." Journal of Applied Physics 114: 163505. (Books and Publications: Article (Peer-reviewed)) 2013
Chen, Zhuo, Chonglong Yu, Kai Shum, Jian J. Wang, William Pfenninger, Nemanja Vockic, John Midgley and John T. Kenney. "Photoluminescence Study of Polycrystalline CsSnI3 Thin Films: Determination of Exciton Binding Energy." Journal of Luminescence 132: 345. (Books and Publications: Article (Peer-reviewed)) 2012
Chen, Zhuo, J.J. Wang, Y. Ren, C. Yu and K. Shum. "Schottky Solar Cells Based on CsSnI3 Thin-films." Applied Physics Letters 101: 093901. (Books and Publications: Article (Peer-reviewed)) 2012
Chonglong Yu, Zhuo Chen, Jian J. Wang, William Pfenninger, Nemanja Vockic, John T. Kenney and Kai Shum. "Temperature Dependence of the Band Gap of Perovskite Semiconductor Compound CsSnI3." Journal of Applied Physics 110: 063526. (Books and Publications: Article (Peer-reviewed)) 2011
Chen, Zhuo, Kai Shum, T. Salagaj, Wei Zhang and K. Strobl. "ZnO Thin Films Synthesized by Chemical Vapor Deposition." IEEE Xplore. (Books and Publications: Article (Peer-reviewed)) 2010
Shum, Kai, Zhuo Chen, Jawad Qureshi, Chonglong Yu, Jian J. Wang, William Pfenninger, Nemanja Vockic, John Midgley and John T. Kenney. "Synthesis and Characterization of CsSnI3 Thin Films." Applied Physics Letters 96: 221903. (Books and Publications: Article (Peer-reviewed)) 2010
Chen, Zhuo, T. Salagaj, C. Jenson, K. Strobl, Mim Nakarmi and Kai Shum. "ZnO Nanostructures Epitaxially Grown on ZnO Seeded Si (100) Substrates by Chemical Vapor Deposition." Materials Resource Society Symposium Proceedings 1178: AA06-21. (Books and Publications: Article (Peer-reviewed)) 2009
Chen, Zhuo, T. Salagaj, C. Jenson, K. Strobl, Mim Nakarmi. and Kai Shum. "ZnO Thin Film Deposition on Sapphire Substrates by Chemical Vapor Deposition." Materials Research Society Symposium Proceedings 1167: O07-09. (Books and Publications: Article (Peer-reviewed)) 2009
Chen, Zhuo, T. Salagaj, C. Jenson, K. Strobl, V. Hongpinyo, Boon Ooi, Mim Nakarmi and Kai Shum. "Two-photon Absorption Induced Photoluminescence in a ZnO Nanostructure." Materials Resource Society Symposium Proceedings 1178: AA09-13. (Books and Publications: Article (Peer-reviewed)) 2009
Shum, Kai and Shi Jim. "Accurate Determination of Carrier Density and Mobility in Organic Semi-conducting Materials." Materials Resource Society Peer Reviewed Proceedings. (Books and Publications: Article (Peer-reviewed)) 2009
Wang, Jian J., Zhuo Chen, Jawad Qureshi, M. Pfenninger, N. Vockic, J. Kenney and Kai Shum. "Photovoltaic Study of Perovskite Semiconductor CsSnI3 Thin Films." Materials Research Society Peer Reviewed Proceedings. (Books and Publications: Book (Authored)) 2009
For Professor Shum's full publication list before 2008, visit Shum's research website:
http://userhome.brooklyn.cuny.edu/kshum/documents/shum_s_publication_list_000.pdf. (Books and Publications: Article (Peer-reviewed)) 2008
Creative Work
Established one of the most advanced research laboratories in the City University of New York system. This laboratory, in 147-149 Ingersoll Hall Extension, is capable of carrying out many research projects in the area of nano-materials/structures based opto-electronics. 2007
Awards, Honors and Fellowships
CUNY Collaborative Incentive Research Grant, for "Development of CsSnI3-based Solar Cells." $30,000; Sept. 30, 2013 - Sept. 26, 2014. (Grants and Fellowships) 2013
Sun Harmonics Ltd./New York and NYSTAR-CAT/CUNY Grant, for "Non-vacuum-based Cu(In, Ga)Se2 Solar Cells." $242,302; Jan. 4, 2012 - Jan. 3, 2015. (Grants and Fellowships) 2012
Sun Harmonics Ltd./New York and NYSTAR-CAT/CUNY Grant .for "Cu(In, Ga)Se2-based Thin-film Solar Cells." $114,975; Dec. 16, 2010 - Dec. 15, 2011. (Grants and Fellowships) 2010
CUNY Collaborative Incentive Research Grant, for "Stack-Engineering for High Carrier Mobility." Jin Shi, principal investigator, and Kai Shum, co-principal investigator. $28,000, March 16, 2009 - March 15, 2010. (Grants and Fellowships) 2008
CVD Equipment Corporation/New York Grant, for "Characterization and Application of Metal-template-guided ZnO Nano-wires and Other Nano-materials." $50,000; April 1, 2008 - March 31, 2009. (Grants and Fellowships) 2008
NYSATAR-CAT/CUNY Matching Grant, for "Characterization and Application of Metal-template-guided ZnO Nano-wires and Other Nano-materials." $50,000; April 1, 2008 - March 31, 2009. (Grants and Fellowships) 2008
OmniPV Corporation/California Grant, for "Optical characterization of UD930 materials." $246,000; June 1, 2008 - May 31, 2010. (Grants and Fellowships) 2008
Research Activities
A sponsored research contract entitled "Cu(In, Ga)Se2-based Thin Film Solar Cells" has been signed by the Research Foundation of the City University of New York and Sun Harmonics Ltd. The research conducted under this contract will be partially funded by the CUNY Center for Advanced Technology, designated by New York State Foundation for Science, Technology and Innovation. 2010
"Synthesis of Uniform ZnO Nanowire Arrays Over a Large Area." Accepted by NSTI Nanotech 2008 conference. 2008
A sponsored research agreement has been signed between FirstNano/CVD and Brooklyn College/NYSTAR-CAT to develop ZnO nano materials and related devices. 2008
A sponsored research agreement has been signed between OmniPV Inc. and the Research Foundation of CUNY to develop new perovskite semiconductor thin films for phootovoltaic device applications. June 1, 2008-May 30, 2010. 2008
