T.K. Ko

669 citations

34 papers · 561 indexed · h-index 14

Impact in

Condensed Matter Physics top 2%
- GaN-based semiconductor devices and materials
Electronic, Optical and Magnetic Materials top 10%
- Ga2O3 and related materials

Papers in ⓘ

Condensed Matter Physics 33
- GaN-based semiconductor devices and materials 33
Electronic, Optical and Magnetic Materials 12
- Ga2O3 and related materials 12

Co-authors: C.F. Shen (22 shared papers)Shih‐Chang Shei (20 shared papers)C. T. Kuo (6 shared papers)Jinn‐Kong Sheu (12 shared papers)Y. Z. Chiou (13 shared papers)Shoou‐Jinn Chang (15 shared papers)S.J. Chang (5 shared papers)Wei‐Chih Lai (9 shared papers)
Journals: IEEE Photonics Technology Letters (5 papers)IEEE Transactions on Advanced Packaging (3 papers)Semiconductor Science and Technology (3 papers)Journal of Lightwave Technology (2 papers)Journal of The Electrochemical Society (2 papers)
Partner nations: Taiwan China Singapore

In The Last Decade

T.K. Ko

34 papers receiving 545 citations

Peers

Countries citing papers authored by T.K. Ko

Since Specialization

Citations

This map shows the geographic impact of T.K. Ko's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by T.K. Ko with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T.K. Ko more than expected).

Fields of papers citing papers by T.K. Ko

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by T.K. Ko. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by T.K. Ko. The network helps show where T.K. Ko may publish in the future.

Co-authors

The 25 scholars most cited alongside T.K. Ko, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with T.K. Ko Line = papers co-authored together T.K. Ko links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 34 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Nitride-Based High-Power Flip-Chip LED With Double-Side Patterned Sapphire Substrate IEEE Photonics Technology Letters ·C.F. Shen, S.J. Chang, W.S. Chen, T.K. Ko, C. T. Kuo, Shih‐Chang Shei	2007	68
2	Nitride-based light emitting diodes with indium tin oxide electrode patterned by imprint lithography Applied Physics Letters ·S. J. Chang, C.F. Shen, W. S. Chen, C. T. Kuo, T.K. Ko, Shih‐Chang Shei, Jinn‐Kong Sheu	2007	67
3	Improved Performance of GaN-Based Blue LEDs With the InGaN Insertion Layer Between the MQW Active Layer and the n-GaN Cladding Layer IEEE Journal of Quantum Electronics ·C. H. Jang, Jinn‐Kong Sheu, Cheng-Mu Tsai, Shoou-Jinn Chang, Wei‐Chih Lai, Ming-Lun Lee, T.K. Ko, C.F. Shen, Shih‐Chang Shei	2010	35
4	GaN MSM photodetectors with TiW transparent electrodes Materials Science and Engineering B ·Chun-Kai Wang, S.J. Chang, Y.K. Su, C. S. Chang, Y. Z. Chiou, C. H. Kuo, T.K. Lin, T.K. Ko, J.J. Tang	2004	33
5	GaN-based p-i-n sensors with ITO contacts IEEE Sensors Journal ·Shoou‐Jinn Chang, T.K. Ko, Yan‐Kuin Su, Y. Z. Chiou, Chao Chang, Shih‐Chang Shei, Jinn‐Kong Sheu, Wei‐Chih Lai, Yi‐Chen Lin, W.S. Chen, C.F. Shen	2006	29
6	Nitride-Based LEDs with an Insulating SiO[sub 2] Layer Underneath p-Pad Electrodes Electrochemical and Solid-State Letters ·Sue-Joan Chang, C.F. Shen, Wei‐Sheng Chen, T.K. Ko, C. T. Kuo, K.H. Yu, Shih‐Chang Shei, Y. Z. Chiou	2007	28
7	Nitride-Based LEDs With a Hybrid Al Mirror $+ {\hbox {TiO}} _{2} /{\hbox {SiO}}_{2}$ DBR Backside Reflector Journal of Lightwave Technology ·Shoou‐Jinn Chang, C.F. Shen, M. H. Hsieh, C. T. Kuo, T.K. Ko, W.S. Chen, Shih‐Chang Shei	2008	28
8	Nitride-Based LEDs With Phosphoric Acid Etched Undercut Sidewalls IEEE Photonics Technology Letters ·D.S. Kuo, Shoou-Jinn Chang, T.K. Ko, C.F. Shen, S. J. Hon, Shang-Chao Hung	2009	23
9	Nitride-Based Light Emitting Diodes With Textured Sidewalls and Pillar Waveguides IEEE Photonics Technology Letters ·C.F. Shen, Shoou‐Jinn Chang, T.K. Ko, C. T. Kuo, Shih‐Chang Shei, W.S. Chen, C.T. Lee, C. S. Chang, Y. Z. Chiou	2006	22
10	Nitride-Based Flip-Chip LEDs With Transparent Ohmic Contacts and Reflective Mirrors IEEE Transactions on Advanced Packaging ·Shoou‐Jinn Chang, W.S. Chen, Y.C. Lin, Chao Chang, T.K. Ko, Y.P. Hsu, C.F. Shen, J.M. Tsai, Shih‐Chang Shei	2006	19
11	AlGaN ultraviolet metal-semiconductor-metal photodetectors grown on Si substrates Sensors and Actuators A Physical ·Sue-Joan Chang, T.K. Ko, Jinn‐Kong Sheu, Shih‐Chang Shei, Wei‐Chih Lai, Y. Z. Chiou, Yung‐Chieh Lin, Chao Chang, Wei‐Sheng Chen, C.F. Shen	2006	18
12	Rapid thermal annealed InGaN/GaN flip-chip LEDs IEEE Transactions on Electron Devices ·W.S. Chen, Shih‐Chang Shei, S.J. Chang, Yifan Su, Wei‐Chi Lai, C. H. Kuo, Y.C. Lin, C. S. Chang, T.K. Ko, Y.P. Hsu, C.F. Shen	2005	17
13	Highly Reliable High-Brightness GaN-Based Flip Chip LEDs IEEE Transactions on Advanced Packaging ·Shoou‐Jinn Chang, W.S. Chen, Shih‐Chang Shei, T.K. Ko, C.F. Shen, Y.P. Hsu, Chao Chang, J.M. Tsai, Wei‐Chih Lai, A.J. Lin	2007	17
14	GaN-Based LEDs Output Power Improved by Textured GaN/Sapphire Interface Using <emphasis emphasistype="italic">In Situ</emphasis> <formula formulatype="inline"><tex Notation="TeX">$\hbox{SiH}_{\bf 4}$</tex> </formula> Treatment Process During Epitaxial Growth IEEE Journal of Selected Topics in Quantum Electronics ·C.M. Tsai, Jinn‐Kong Sheu, Wei‐Chih Lai, Ming-Lun Lee, Shoou-Jinn Chang, C.S. Chang, T.K. Ko, C.F. Shen	2009	13
15	AlGaN/GaN Schottky-barrier UV-B bandpass photodetectors with ITO contacts and LT-GaN cap layers Semiconductor Science and Technology ·T.K. Ko, Sue-Joan Chang, Jinn‐Kong Sheu, S C Shei, Y. Z. Chiou, M. L. Lee, C.F. Shen, Sheng-Po Chang, Kuan-Wei Lin	2006	13
16	Highly Reliable Nitride-Based LEDs With Internal ESD Protection Diodes IEEE Transactions on Device and Materials Reliability ·S.J. Chang, C.F. Shen, Shih‐Chang Shei, Ricky W. Chuang, Chao Chang, W.S. Chen, T.K. Ko, Jinn‐Kong Sheu	2006	12
17	High temperature and high frequency characteristics of AlGaN/GaN MOS-HFETs with photochemical vapor deposition SiO2 layer Materials Science and Engineering B ·Chun-Kai Wang, R. W. Chuang, Sue-Joan Chang, Yikun Su, S.C. Wei, T.K. Lin, T.K. Ko, Y. Z. Chiou, J.J. Tang	2005	12
18	High-Brightness InGaN–GaN Power Flip-Chip LEDs Journal of Lightwave Technology ·S.J. Chang, W.S. Chen, Shih‐Chang Shei, C. T. Kuo, T.K. Ko, C.F. Shen, J.M. Tsai, Wei‐Chi Lai, Jinn‐Kong Sheu, A.J. Lin	2009	11
19	GaN MIS Capacitors with Photo-CVD SiN[sub x]O[sub y] Insulating Layers Journal of The Electrochemical Society ·S. J. Chang, Chun-Kai Wang, Y.K. Su, Chao Chang, T.K. Lin, T.K. Ko, H. L. Liu	2005	10
20	The thickness effect of p-AlGaN blocking Layer in UV-a bandpass photodetectors IEEE Photonics Technology Letters ·Chun-Kai Wang, T.K. Ko, C. S. Chang, Shoou‐Jinn Chang, Y.K. Su, Ten‐Chin Wen, C. H. Kuo, Y. Z. Chiou	2005	10

About T.K. Ko

T.K. Ko is a scholar working on Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics, Materials Chemistry and Electrical and Electronic Engineering, having authored 34 papers that have together received 561 indexed citations. Recurring topics across this work include GaN-based semiconductor devices and materials (33 papers), ZnO doping and properties (13 papers), Semiconductor Quantum Structures and Devices (12 papers), Ga2O3 and related materials (12 papers), Semiconductor materials and devices (10 papers), Photocathodes and Microchannel Plates (6 papers), Gas Sensing Nanomaterials and Sensors (2 papers) and Nanowire Synthesis and Applications (2 papers). The work is most often cited by research in Condensed Matter Physics (468 citations), Electronic, Optical and Magnetic Materials (236 citations), Materials Chemistry (263 citations), Electrical and Electronic Engineering (262 citations) and Atomic and Molecular Physics, and Optics (139 citations). T.K. Ko has collaborated with scholars based in Taiwan, China and Singapore. Frequent co-authors include C.F. Shen, Shih‐Chang Shei, C. T. Kuo, Jinn‐Kong Sheu, Y. Z. Chiou, Shoou‐Jinn Chang, S.J. Chang, Wei‐Chih Lai, Chao Chang and S. J. Chang. Their work appears in journals such as IEEE Photonics Technology Letters, IEEE Transactions on Advanced Packaging, Semiconductor Science and Technology, Journal of Lightwave Technology and Journal of The Electrochemical Society.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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