Juen-Kai Wang

E-mail jkwang@po.iams.sinica.edu.tw
Office 225
Tel. of office +886-2-2366-8225
Laboratory 224
Tel. of Lab. +886-2-2362-4910

B.S., 1983, National Taiwan University, Taiwan
M.S.,1986, Harvard University, USA
Ph.D., 1992, Harvard University, USA

Postdoctoral Fellow, California Institute of Technology USA (1992–1994)
Assistant Research Fellow, Center for Condensed Matter Sciences, National Taiwan University (1994–1999)
Associate Research Fellow, Center for Condensed Matter Sciences, National Taiwan University (1999–2006)
Research Fellow, Center for Condensed Matter Sciences, National Taiwan University (2006–)
Joint Appointment Associate Research Fellow, IAMS, Academia Sinica (2003–2009)
Joint Appointment Research Fellow, IAMS, Academia Sinica (2009–)

Ultrafast optical spectroscopy
Ultrafast nonlinear optics
Nanoscale optical spectroscopy
Physical studies of organic electronics

Outstanding Contributions in Science and Technology Award, Executive Yuan, Taiwan (2009)
Nano-Tech Award, Ministry of Economic Affairs, Taiwan (2010)

"A Single Molecule View of Bi-stilbene Photoisomerization on a Surface using Scanning Tunnelling Microscopy," Chih-Song Tsai, Juen-Kai Wang, Rex T. Skodje, and Jiing-Chyuan Lin, J. Am. Chem. Soc. 127, 10788-10789 (2005).
"Highly Raman Enhancing Substrates Made of Ag-Nanoparticle Array with Tunable Sub-10 nm Gaps," Huai-Hsien Wang, Chih-Yu Liu, Shr-Bin Wu, Nai-Wei Liu, Cheng-Yi Peng, Tsu-Shin Chan, Chen-Feng Hsu, Juen-Kai Wang, and Yuh-Lin Wang, Advanced Materials 18, 491-495 (2006).
"Electric field enhancement by a nanometer-scaled conical metal tip," A.V. Goncharenko, M. M. Dvoynenko, Hung-Chih Chang, and Juen-Kai Wang, Appl. Phys. Lett. 88, 104101-1~104101-3 (2006).
"Nonlinear pulse-shaping phenomena of semiconductor saturable absorber mirror," Jiun-Cheng Wang, Chi-Kuang Sun, and Juen-Kai Wang, Appl. Phys. Lett. 89, 231106-1~231106-3 (2006).
"Excited-state dynamics of trans,trans-distyrylbenzene: Transient anisotropy and excitation energy dependence," Feng-Cheng Hsu, Michitoshi Hayashi, Houng-Wei Wang, Sheng Hsien Lin, and Juen-Kai Wang, J. Phys. Chem. A 111, 759-763 (2007).
"Charge Carrier Mobility of Mixed-Layer Organic Light-Emitting Diodes," Shun-Wei Liu, Jiun-Haw Lee, Chin-Chien Lee, Chin-Ti Chen, and Juen-Kai Wang, Appl. Phys. Lett. 91, 142106-142108 (2007).
"Finding electromagnetic and chemical enhancement factors of surface-enhanced Raman scattering," Mykhaylo M. Dvoynenko and Juen-Kai Wang, Optics Lett. 32, 3552-3554 (2007).
"Fourier analysis of surface plasmon waves launched from single nanohole and nanohole arrays: unraveling tip-induced effects," Y.C. Chang, J.Y. Chu, T.J. Wang, M.W. Lin, J.T. Yeh, and J.-K. Wang, Optics Express 16, 740-747 (2008).
"Light scattering from 2D arrays of monodispersed Ag-nanoparticles separated by tunable nano-gaps: spectral evolution and analytical analysis of plasmonic coupling," Sajal Biring, Huai-Hsien Wang, Juen-Kai Wang, and Yuh-Lin Wang, Optics Express 16, 15312-15324 (2008).
“Surface Raman spectroscopy of trans-stilbene on Ag/Ge(111): Surface-induced effects “, Li-Wei Chou, Ya-Rong Lee, Ching-Ming Wei, Jyh-ChiangJiang, Jiing-Chyuan Lin, and Juen-Kai Wang, J. Phys. Chem. C 113, 208 (2009).
“Enhancing performance of planar molecule-based organic light-emitting diodes through deposition-rate optimization: Role of molecular packing “, Shun-Wei Liu, Chih-Chien Lee, Chih-Han Wang, Jiun-Haw Lee, Chin-Ti Chen, and Juen-Kai Wang, Chem. Phys. Lett. 474, 207 (2009).
“A high speed detection platform based on surface-enhanced Raman scattering for monitoring antibiotic-induced chemical changes in bacteria cell wall”, T.-T. Liu, Y.-H. Lin, C.-S. Hung, T.-J. Liu, Y. Chen, Y.-C. Huang, T.-H. Tsai, H.-H. Wang, D.-W. Wang,J.-K. Wang, Y.-L. Wang and C.-H. Lin, Plos One 4, e5470 (2009).
“Probing surface plasmons in individual Ag nanoparticles in the ultra-violet spectral regime “, Ming-Wen Chu, Pradeep Sharma, Ching-Pin Chang, Sz-Chian Liou, Kun-Tong Tsai, Juen-Kai Wang, Yuh-Lin Wang, and Cheng Hsuan Chen, Nanotechnology.20, 235705 (2009).
“Tip-enhanced Raman spectroscopy of graphite irradiated by focused ion beam “, Tsu-Shin Chan, Mykhaylo M. Dvoynenko, Chih-Yi Liu, Juen-Kai Wang, and Yuh-Lin Wang, Opt. Letters. 34, 2246 (2009).
“Unraveling near-field origin of electromagnetic waves scattered from silver nanorod arrays using pseudo-spectral time-domain calculation “, Bang-Yan Lin, Hui-Chen Hsu, Chun-Hao Teng, Hung-Chun Chang, Juen-Kai Wang, and Yuh-Lin Wang, Opt. Express 17, 14211 (2009).
“Direct Near-Field Optical Investigation of Phase-Change Medium in Blue-Ray Recordable and Erasable Disc “, Jen-You Chu, Shen-Chuan Lo, Shu-Chen Chen, You-Chia Chang, and Juen-Kai Wang, Appl. Phys. Lett. 95, 103105 (2009).
“Anomalous Raman enhancement of longitudinal optical phonons of Ag-nanoparticle-covered GaN and ZnO “, C. Y. Liu, M. M. Dvoynenko, M. Y. Lai, T. H. Chan, Y. R. Lee, J.-K. Wang, and Y.-L. Wang, Appl. Phys. Lett. 96, 033109 (2010).
“Effects of cathode buffer layers on the efficiency of bulk-heterojunction solar cells “, Ching-Chun Chang, Chi-Feng Lin, Jian-Ming Chiou, Tzung-Han Ho, Yen Tai, Jiun-Haw Lee, Yang-Fang Chen, Juen-Kai Wang, Li-Chyong Chen, and Kuei-Hsien Chen, Appl. Phys. Lett. 96, 263506 (2010).
“Pseudospectral Modeling of Nano-Optics in Ag Sphere Arrays “, Bang-Yan Lin, Chun-Hao Teng, Hung-Chun Chang, Hui-Hsin Hsiao, Juen-Kai Wang, and Yuh-Lin Wang, J. Sci. Comput. 45, 429 (2010).
“Unraveling electromagnetic resonance of two-dimensional ordered nanoparticle arrays with dipole-coupling model “, Sheng Hsiung Chan, Bang-Yan Lin, Tian-You Cheng and Juen-Kai Wang, Phys. Status Solidi-R 4, 259 (2010).
“Molecular ruler based on concurrent measurements of enhanced Raman scattering and fluorescence “, M. M. Dvoynenko, Z. I. Kazantseva, V. V. Strelchuk, O. F. Kolomys, E. F. Venger, and J.-K. Wang, Opt. Letters 35, 3808 (2010).
“Unraveling molecular adsorption with surface Raman spectroscopy: trans-stilbene, trans,trans-distyrylbenzene and trans-azobenzene on Ag/Ge(111)”, Li-Wei Chou, Ya-Rong Lee,Jyh-ChiangJiang, Jiing-Chyuan Lin, and Juen-Kai Wang, J. Phys. Chem. C 115, 516 (2011).
“Optimizing electromagnetic enhancement of flexible nano-imprinted hexagonally patterned surface-enhanced Raman scattering substrates “, D. Z. Lin, Y. P. Chen, P. J. Jhuang, J. Y. Chu, J. T. Yeh, and J.-K. Wang,Opt. Express 19, 4337 (2011).
“Roughness Characterization of Silver Oxide Anodes for use in Efficient Top-illuminated Organic Solar Cells “, Mi Zhang, Tien-Lung Chiu, Chi-Feng Lin, Jiun-Haw Lee, Juen-Kai Wang, and Yunfeng Wu, Sol. Energ. Mat. Sol. C.95, 2606(2011).
“Autocatalytic Reaction in Hydrolysis of Difructose Anhydride III“, Tzu-Hsin Chan, Po-Tuan Chen, Michitoshi Hayashi, Juen-Kai Wang, and Yuh-Lin Wang, J.Phys.Chem.A115, 10309 (2011).
“Transparent Raman-enhancing substrates for microbiological monitoring and in-situ pollutant detection “, Huai-Hsien Wang, Tian-You Cheng, Pradeep Sharma, Fang Yi Chiang, Shirley Wen-Yu Chiu, Juen-Kai Wang, andYuh-Lin Wang, Nanotechnology 22, 385702 (2011).
“Functionalized arrays of Raman-enhancing nanoparticles for capture and culture-free analysis of bacteria in human blood“, Ting-Yu Liu, Kun-Tong Tsai, Huai-Hsien Wang, Yu Chen, Yu-Hsuan Chen, Yuan-Chun Chao, Hsuan-Hao Chang, Chi-Hung Lin, Juen-Kai Wang and Yuh-Lin Wang, Nature, Communications, in press.