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Optoelectronic Material and Device Laboratory (I) Room No.: IL-316 Phone: +886-3-4227151-25229
Lab Website:

Prof. Kun-Yu (Alvin) Lai


Key Areas

III-nitride optoelectronic devices: LEDs, biosensors, etc.

Official Lab Web:

Research Descriptions

The research in Optoelectronic Material and Device Lab is focused on development of III-nitride optoelectronic devices, including LEDs and biosensors. Enhanced efficiency/cost ratios of these devices are achieved through novel growth and fabrication techniques. Additional research interest is directed toward theoretical investigations on the mechanisms responsible for emission/absorption rates in III-nitride semiconductors. Leb Web:

Recent Projects

Position Project Project Duration Funding Agent Grant (NT$)


Publications and Patents
Journal Papers
1 Fang Yin Zhao, Nguyen Thi Anh Nguyet, Chia-Wei Tsai, Che-Men Chu, Wei-Yen Woon, Chien-Ting Wu, Kun-Lin Lin, Yo-Song Huang, Chih-Ming Wang, Fan-Ching Chien*, and Kun-Yu Lai*, “Catching single molecules with plasmonic InGaN quantum dots”, Adv. Opt. Mater. (2023) DOI:10.1002/adom.202300431.
2 Thi Anh Nguyet Nguyen, Ying-Lung Yu, Ya Chien Chang, Yu-Han Wang, Wei-Yen Woon, Chien-Ting Wu, Kun-Lin Lin, Cheng-Yi Liu, Fan-Ching Chien*, and Kun-Yu Lai*, “Controlling the electron concentration for surface-Enhanced Raman spectroscopy”, ACS Photonics 8, 2410 (2021).
3 Fan-Ching Chien, Ting Fu Zhang, Chi Chen, Thi Anh Nguyet Nguyen, Song-Yu Wang, Syuan Miao Lai, Chia-Hua Lin, Chun-Kai Huang, Cheng-Yi Liu, and Kun-Yu Lai*, “Nanostructured InGaN quantum wells as a surface-enhanced Raman scattering substrate with expanded hot spots”, ACS Appl. Nano Mater. 4, 2614 (2021).
4 Chun-Pin Huang, Muzafar Ahmad Rather, Chien-Ting Wu, Ravi Loganathan, Ying-Hao Ju, Kun-Lin Lin, Jen-Inn Chyi, and Kun-Yu Lai*, “Crystal Transformation of Cubic BN Nanoislands to Rhombohedral BN Sheets on AlN for Deep-UV Light-Emitting Diodes”, ACS Appl. Nano Mater. 3, 5285 (2020).
5 Fan-Ching Chien, Jen-Long Lo, Xingwang Zhang, Ertugrul Cubukcu, Yu-Tang Luo, Kai-Lin Huang, Xiaofang Tang|, Chien-Sheng Chen, Chii-Chang Chen, and Kun-Yu Lai*, “Nitride-based microarray biochips: A new route of plasmonic imaging”, ACS Appl. Mater. Interfaces 10, 39898 (2018).
Book(s)/Book Chapter(s)

· J.R.D. Retamal, C.Y. Chen, K.Y. Lai and J.H. He, "ZnO-based nanostructures," Chapter 4 in Handbook of Zinc Oxide and Related Materials: Volume Two, Devices and Nano-Engineering, Taylor & Francis Group (2012) ISBN: 978-143-985-574-4

Courses Offered

People Postdoctoral Fellows

Present Students
Ph.D. students:
MS students:
Undergraduate students:

Former Students
Research Opportunities

Lab Activities

Address: Kwoh-Ting Optics and Photonics Building, No. 300, Zhongda Rd., Zhongli District, Taoyuan City, Taiwan (R.O.C.)
TEL: +886-3-4227151 ext. 65251FAX:
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