OUYANG Jianyong_NUS (Suzhou) Research Institute

OUYANG Jianyong

Chief Principal Investigator

mseoj@nus.edu.sg

Education
• 1993 Tsinghua University, Chemistry, Beijing, China, B. Sc.
• 1996 Chinese Academy of Sciences, Institute of Chemistry, Materials Chemistry, Beijing, China, M.S.
• 1999 Institute for Molecular Science, Solid State Physics, Japan, Ph.D.

Work experience
• 1999 – 2000 Visiting Scientist, Institute for Molecular Science, Japan
• 2000 – 2001 Assistant Professor, School of Materials Science, Japanese Advanced Institute of Science and Technology, Ishikawa, Japan
• 2001 – 2006 Postdoctoral Researcher, Department of Materials Science and Engineering, University of California, Los Angeles, USA
• 2006 – 2012 Assistant Professor, Department of Materials Science and Engineering, NUS

• 2012 – 2024 Associate Professor, Department of Materials Science and Engineering, NUS

• 2024 – Present Professor, Department of Materials Science and Engineering, NUS

Current Research Interests
• Flexible thermoelectrics, including ionic thermoelectric materials, thermoelectric polymers and composites, and flexible thermoelectric devices
• Flexible electronics, including conducting polymers, transparent electrodes, stretchable electrodes, and sensors

Selected Research Breakthroughs
• Demonstrated the first stretchable and adhesive intrinsically conductive polymer blend (SAICP) and their application as biopotential electrode in the world (2020)
• Invented the first hybrid ionic/electronic thermoelectric convert (HTEC) in the world (2020)
• Demonstrated a world-record ZTi of 1.47 for ionic thermoelectric materials (2020)
• Demonstrated world-record Seebeck coefficients of 26 mV/K in 2019 and 34.5 mV/K in 2020 for ionic thermoelectric materials
• Demonstrated world-record thermoelectric power factors of 754 uW/(m K2) in 2018 and 334 uW/(m K2) in 2017 for thermoelectric polymers
• Demonstrated power conversion efficiency of > 9% for solution-processed organic solar cells (2015)
• Demonstrated world-record conductivity of >3000 S/cm for PEDOT:PSS through a treatment with H2SO4, the highest conductivity in the world (2012)
• Invented the first polymer/nanoparticle resistive memories in the world (2004)
• Proposed a mechanism for the secondary doping of PEDOT:PSS. That is a classic work of PEDOT:PSS (2004)

Selected Professional Awards
• Distinguished Award for Novel Materials and Their Synthesis by International Union of Pure and Applied Chemistry & Organization Committee of Novel Materials and Their Synthesis, (IUPAC & NMS), 2015
• NUS Young Investigator Award, 2007
• Co-winner of Beijing Science and Technology Award, 2005
• Amada Award for Science and Technology Research, the Japan-China Science and Technology Exchange Association, Tokyo, Japan. 1999
• Highest President Award for Top 20 Graduate Students, Chinese Academy of Sciences. 1996

Representative Publications
[1] Hao He, Lei Zhang, Shizhong Yue, Suzhu Yu, Jun Wei, and Jianyong Ouyang*, Enhancement in the mechanical stretchability of PEDOT:PSS films by compounds of multiple hydroxyl groups for their application as transparent stretchable conductor, Macromolecules, 2021, 54, 1234.
[2] M. Imran,* H. Coskun, N. A. Khan and J. Ouyang, Role of annealing temperature of nickel oxide (NiOx) as hole transport layer in work function alignment with perovskite, Applied Physics A, 2021, 127, 1-8.
[3] Zeng Fan, Yaoyun Zhang, Lujun Pan,* Jianyong Ouyang,* and Qian Zhang, Recent developments in flexible thermoelectrics: From materials to devices, Renewable and Sustainable Energy Reviews, 2021, 137, 110448.
[4] Hao He and Jianyong Ouyang, Enhancements in the Mechanical Stretchability and Thermoelectric Properties of PEDOT:PSS for Flexible Electronics Applications, Accounts of Materials Research, 2020, 1, 146-157. (R-284-000-228-112)
[5] Shan Wang, Yuanlai Fang, Hao He, Lei Zhang, Chang’an Li, and Jianyong Ouyang*, Wearable stretchable dry and self-adhesive strain sensors with conformal contact to skin for high-quality motion monitoring, Advanced Functional Materials, 2021,31, 2007495. (R-284-000-220-114)
[6] Yuanlai Fang, Hanlin Cheng*, Hao He, Shan Wang, Jianmin Li, Shizhong Yue, Lei Zhang, Zongliang Du, and Jianyong Ouyang*, Stretchable and transparent ionogels with high thermoelectric properties, Advanced Functional Materials, 2004699.
[7] Lei Zhang, Senthil Kumar Kirthika, Hao He, Catherine Jiayi Cai, Xu He, Huxin Gao, Shizhong Yue, Changsheng Li, Raymond Chee-Seong Seet, Hongliang Ren*, Jianyong Ouyang*, Fully Organic, Skin-compliant, Self-adhesive and Stretchable Dry Electrodes for Long-term Motion-robust Epidermal Biopotential Monitoring, Nature Communications, 2020, 11, 4683.
[8] Hanlin Cheng and Jianyong Ouyang, Ultrahigh Thermoelectric Power Generation from Both Ion Diffusion by Temperature Fluctuation and Hole Accumulation by Temperature Gradient, Advanced Energy Materials, 2020, 10, 2001633. (R-284-000-228-112)
[9] Xin Guan, Erol Yildirim, Zeng Fan, Wanheng Lu, Bichen Li, Kaiyang Zeng, Shuo-Wang Yang and Jianyong Ouyang, Thermoelectric Polymer Films with Significantly High Seebeck Coefficient and Thermoelectric Power Factor through Surface Energy Filtering, Journal of Materials Chemistry A, 2020, 8, 13600.
[10] Xu He, Hanlin Cheng*, Shizhong Yue, Jianyong Ouyang*, Quasi-Solid State Nanoparticle/(Ionic Liquid) Gels with Significantly High Ionic Thermoelectric Properties, Journal of Materials Chemistry A, 2020, 8, 10813 - 10821.

Book Charpters
[1] Lijun Hu, Ke Yang, Wei Chen, Falin Wu, Jiehao Fu, Wenbo Sun, Hongyan Huang, Baomin Zhao, Kuan Sun and Jianyong Ouyang, Chapter 14 “Electrode Materials for Printable Solar Cells” in “Printable Solar Cells” ed. By Nurdan Demirci Sankir and Mehmet Sankir, Scrivener Publishing, 2017, pages 457-512.
[2] Jianyong Ouyang, “Emerging Resistive Switching Memories”, Springer Briefs in Materials, Springer, 2016.
[3] Nishanth K. Gopalan, Abhijit Dutta, and Jianyong Ouyang, “Carbon nanomaterials as electrocatalysts for energy conversion” in volume 11 “Hydrogen and Other Technologies” of the Series “Energy science and technology”, Studium Press, to be published
[4] Jianyong Ouyang, “Two-terminal organic memories with metal or semiconductor nanoparticles” in “Charge-trapping nonvolatile memories”, ed. by P. Dimitrakis, Springer, to be published.
[5] Kuan Sun, Yijie Xia and Jianyong Ouyang, “Next-generation transparent electrode materials for organic solar cells” in “Solar cell materials, devices and systems”, Taylor and Francis, to be published.
[6] Jianyong Ouyang, Chapter 14 “Application of graphene and graphene oxide in dye-sensitized solar cells” in “Handbook of graphene science”, CRC press, to be published.
[7] Yijie Xia and Jianyong Ouyang, Chapter 9 “Transparent conducting polymers” in “Organic Optoelectronic Materials” ed. by Yongfang Li, Springer, to be published.
[8] Jianyong Ouyang, Chapter 12 “Organic/Polymeric Films with Resistive-Switching Behavior and Their Application as Nonvolatile Memory Devices” in “Nonvolatile Memories: Materials, Devices and Application”, volume 2, page 1-19, ed. By Tseung-Yuen Tseng and Simon M. Sze, American Scientific Publishers, 2012.
[9] Yang Yang, Jianyong Ouyang, Liping Ma, Chih-Wei Chu and Ricky Tseng, Chapter 15 “Polymer and Organic Thin-Film Memory Devices” in Semiconducting Polymers: Chemistry, Physics and Engineering, Second Edition”, ed. Georges Hadziioannou & George G. Malliaras, Wiley-VCH, 2006.
[10] Jianyong Ouyang, Chih-Wei Chu, Ricky Tseng and Yang Yang, Chapter 8 “Electrical Bistable Polymer Films and Their Applications in Memory Devices” in Handbook of Conducting Polymers, 3rd edition (editors: T. A. Skotheim and J. Reynold), CRC Press, 2006, p311.
[11] Yang Yang, Liping Ma, Jianyong Ouyang, Jun He, Hai Ming Liem, Chih-Wei Chu and Ankita Prakash, “Organic Nonvolatile Memories” in chapter 2 of book Materials for Information Technology (Editors. E. Zschech, C. Whelan, T. Mikolajick), Springer-Verlag, 2005, p197.