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ABOUT Research

•    Major Achievements 

My group studied topics related to plasmonics, nanophotonics, and metamaterials. We mainly focus on developing and characterizing high-performance plasmonic nanodevices for efficient energy conversion. This benefited from the greatly enhanced local electric field, the localized surface plasmonic resonance can remarkably enhance light-matter interaction strength. My research interests are within an interdisciplinary field of active plasmonics/optoelectronics with a particular focus on nanomaterials and optoelectronic nanodevices to investigate harvesting, generating, and manipulating light at the nanoscale. We collaborated with principal investigators (PIs) both inside and outside RCAS to study the fundamental material physics and novel optical properties of lead halide perovskites and transition metal dichalcogenides (TMDCs), and their applications. 

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•    Accomplishments

Main Topic 1

Our main research topic is to develop the transition metal nitride (TiN, ZrN, HfN, NbN, TaN, ScN) as an alternative plasmonic material with high melting point. We study the material properties of the high temperature sputtered film and analysis it by using XRD, TEM, AFM, Ellipsometry, XPS and Hall measurement. Based on this material systems, we study the fundamental physics of the near-field light matter interaction and also find its potential applications. 

In preparation

Main Topic 2

The other research topic that we are interested in is the optoelectronic properties of semiconductor nanostructures. e. g. We are studying the plasmonic nanolaser and gate tunable devices based on lead trihalid perovskite quantum dots.  

Attodry800 closed cycle cryostat with confocal laser scanning system.

(2017)

Development of nitride based novel metamaterials.

(2018)

RESEARCH INTERESTS

  • Quantum optics, and Green optoelectronics
     

  • Active plasmonics/ nanophotonics
     

  • Low-temperature spectroscopy
     

  • Charge-carrier dynamics in low dimensional semiconductors​ Quantum Dots; Nanowires; Nanorods; 2D Materials

Collabrators

  • Prof. Harry A. Atwater                   California Institute of Technology        (USA)
 
  • Prof. Shangjr Gwo                           National Tsing Hua University             (Taiwan)
     
  • Prof. Heyoon Ahn                            National Chiao Tung University           (Taiwan)
     
  • Prof. Alex B. Djurišić                      The University of Hong Kong                (HK)
     
  • Prof. Ming-Yen Lu                           National Tsing Hua University              (Taiwan)
     
  • Prof. Chih-Wei Chu                         Academia Sinica                                     (Taiwan)              
     
  • Prof. Shih-Yen Lin                           Academia Sinica                                     (Taiwan)
        
  • Prof. Din Ping Tsai​                          HK Polytech.                                           (HK)
     
  • Prof. Chi-Te Liang                          National Taiwan University                   (Taiwan)
     
  • Prof. Harald Giessen                      University of Stuttgart                            (Germany)
     
  • Prof. Takuo Tanaka                        RIKEN                                                     (Japan)
     
  • Prof. Howard Lee                           Baylor University                                    (USA)
     
  • Prof. Jr-Hau He                              City U                                                       (HK)
     
  • Prof. Ta-Jen Yen                             National Tsing Hua University               (Taiwan)
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