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Hung-Ju Yen (顏宏儒)

Materials Chemistry

Hung-Ju Yen (顏宏儒)

    Hung-Ju Yen 's Lab
Assistant Research Fellow (2017 – ); J. Robert Oppenheimer Fellow, Los Alamos National Laboratory (2013 – 2017); Postdoctoral Researcher, National Taiwan University (2011; 2012-2013); Ph.D., National Taiwan University (2011); Visiting Doctoral Researcher, Tokyo Institute of Technology (2009); M.S., National Chi Nan University (2007); B.S., National Chi Nan University (2006); The Li Foundation Heritage Prize for "Excellence in Creativity" (2018).;
Research Interests

Bottom-up Chemical Synthesis of Nanographenes
Design and Synthesis of Electroactive High-performance Polymers
Functional Materials for optoelectronic and energy applications


Selected Publications
  1. Yen, H. J.; Liou, G.-S. Recent Advances in Triphenylamine-based Electrochromic Derivatives and Polymers. Polymer Chemistry 2018, 9 (22), 3001-3018.
  2. Yen, H. J.; Chang, C.-W. ; Wong, H. Q.; Liou, G.-S. Cyanotriphenylamine-based Polyimidothioethers as Multifunctional Materials for Ambipolar Electrochromic and Electrofluorochromic Devices, and Fluorescent Electrospun Fibers. Polymer Chemistry 2018, 9 (13), 1693-1700.
  3. Yen, H. J.; Shan, C.; Wang, L.; Xu, P.; Zhou, M.; Wang, H. L. Development of Conjugated Polymers for Memory Device Applications. Polymers 2017, 9(1), 25.
  4. Yen, H. J.; Tsai, C. L.; Chen, S. H.; Liou, G. S. Electrochromism and Nonvolatile Memory Device Derived from Triphenylamine-based Polyimides with pendant Viologen units. Macromol. Rapid Commun. 2017, 38 (9), 1600715.
  5. Shan, C.;Yen, H. J.; Wu, K.; Lin, Q.; Zhou, M.; Guo, X.; Wu, D.; Zhang, H.; Wu, G.; Wang, H. L. Functionalized Fullerenes for Highly Efficient Lithium Ion Storage: Structure-property-Performance Correlation with Energy Implications. Nano Energy 2017, DOI: 10.1016/j.nanoen.2017.08.033.
  6. Yen, H. J.; Tsai, H.; Zhou, M.; Holby, E. F.; Choudhury, S.; Chen, A.; Adamska, L.; Tretiak, S.; Sanchez, T.; Iyer, S.; Zhang, H.; Zhu, L.; Lin, H.; Dai, L.; Wu, G.; Wang, H. L. Structurally Defined 3D Nanographene Assemblies via Bottom-up Chemical Synthesis for Highly Efficient Lithium Storage. Adv. Mater. 2016, 28(46), 10250–10256.
  7. Yen, H. J.; Liang, P. W.; Chueh, C. C.; Yang, Z.; Jen, A. K.-Y.; Wang, H. L. Large Grained Perovskite Solar Cells Derived from Single-Crystal Perovskite Powders with Enhanced Ambient Stability. ACS Appl. Mater. Inter. 2016, 8(23), 14513–14520.
  8. Yen, H. J.; Lin, J. H.;. Su, Y. O; Liou, G. S. Novel Triarylamine-based Aromatic Polyamides Bearing Secondary Amines: Synthesis and Redox Potential Inversion Characteristics Induced by Pyridines. J. Mater. Chem. C 2016, 4(43), 10381–10385.
  9. Park, Y. I.; Postupna, O.; Zhugayevych, A.; Kyu, S. W.; Park, Y. S.; Kim, B.;Yen, H. J.; Cheruku, P.; Martinez, J. S.; Park, J.; Tretiak, S.; Wang, H. L. A New pH Sensitive Fluorescent and White Emissive Material through Controlled Inter-molecular Charge Transfer. Chem. Sci. 2015, 6(1), 789-797.
  10. Cheruku, P.; Huang, J. H.;Yen, H. J.; Iyer, R. S.; Rector, K. D.; Martinez, J. S.; Wang, H. L. Tyrosine-Derived Stimuli Responsive, Fluorescent Amino Acids. Chem. Sci. 2015, 6(2), 1150-1158.
  11. Yen, H. J.; Chen, C. J.; Liou, G. S. Flexible Multi-Colored Electrochromic and Volatile Polymer Memory Devices derived from Starburst Triarylamine-based Electroactive Polyimide. Adv. Funct. Mater. 2013, 23(42), 5307–5316.

Chapter of Publication:

  1. H. J. Yen, J. H. Wu and G. S. Liou*, Chapter 4 High Performance Polyimides for Resistive Switching Memory Devices in Electrical Memory Materials and Devices, The Royal Society of Chemistry, 2015, Series No. 18, 136-166.
  2. G. S. Liou* and H. J. Yen, Polyimides. In: Matyjaszewski K and Möller M (eds.) Polymer Science: A Comprehensive Reference, 2012, Vol 5, p. 497-535. Amsterdam: Elsevier BV.

Selected Patents:

  1. US Patent, Provisional Application No. 62/288341 “Compounds and Composites and Energy Storage Devices Comprising the same” H. J. Yen, G. Wu, H. L. Wang. (January 28, 2016).
  2. US Patent 9,598,538 B2 “Transparent Electrochromic Polymer and Electrochromic Device” G. S. Liou, H. J. Yen, Y. W. Chuang, Y. R. Kung, C. M. Leu, L. T. Huang. (March 21, 2017).
  3. US Patent 8,962,769 B2 “Polyimidothioethers-Inorganic Nanoparticle Hybrid Material, Intermediate thereof and Their Preparation” G. S. Liou, C. L. Tsai, H. J. Yen, W. C. Chen, W. Y. Chiu, Y. Y. Yu (February 24, 2015).
  4. US Patent 8,088,932 B2 “Pentaaryldiamine-Containing Bismaleimide Compound and Method of Producing the Compound” G. S. Liou, C. W. Chang, H. J. Yen, J. P. Pan, C. R. Yang, T. H. Wang, J. M. Hsu. (January 3, 2012)

Update: 2018-09-12

Journal Paper
  1. Antonietta Maria Lillo, Ciana Lopez, Trideep Rajale, Hung-Ju Yen, Harsha Magurudeniya, M Lisa Phipps, Eva Rose Murdock Balog, Timothy C Sanchez, Srinivas Iyer, Hsing-Lin Wang, Ryszard Michalczyk, Reginaldo C Rocha, Jennifer S Martinez* Conjugation of Amphiphilic Proteins to Hydrophobic Ligands in Organic Solvent. BIOCONJUGATE CHEMISTRY 2018-08-1529(8), 2654-2664.
  2. Hung-Ju Yen*, Guey-Sheng Liou* Recent Advances in Triphenylamine-based Electrochromic Derivatives and Polymers (Front Cover Article; Invited Review Article​). POLYMER CHEMISTRY 2018-06-149(22), 3001-3018.
  3. Changsheng Shan*, Kaifeng Wu, Hung-Ju Yen, Claudia Narvaez Villarrubia, Tom Nakotte, Xiangjie Bo, Ming Zhou, Gang Wu, and Hsing-Lin Wang* Graphene Oxides used as a New “Dual Role” Binder for Stabilizing Silicon Nanoparticles in Lithium Ion Battery. ACS APPLIED MATERIALS & INTERFACES 2018-05-0910(18), 15665-15672.
  4. Hung-Ju Yen*, Cha-Wen Chang, Hui Qi Wong, Guey-Sheng Liou* Cyanotriphenylamine-based Polyimidothioethers as Multifunctional Materials for Ambipolar Electrochromic and Electrofluorochromic Devices, and Fluorescent Electrospun Fibers (Themed Issue: Emerging Investigators, 2018). POLYMER CHEMISTRY 2018-04-079(13), 1693-1700.
  5. Hung-Ju Yen, Jhe-Huang Lin, Yuhlong Oliver Su, Guey-Sheng Liou* Observation of Ionic Hydrogen Bonding between Anions and Triarylamine-based Aromatic Polyimides with Secondary Amine. ELECTROCHIMICA ACTA 2018-01-20261, 307-313.
  6. Changsheng Shan, Hung-Ju Yen, Kaifeng Wu, Qianglu Lin, Ming Zhou, Xiaofeng Guo, Di Wu, Hanguang Zhang, Gang Wu*, Hsing-Lin Wang* Functionalized Fullerenes for Highly Efficient Lithium Ion Storage: Structure-Property-Performance Correlation with Energy Implications. NANO ENERGY 2017-10-0140, 327-335.
  7. Hung-Ju Yen, Chia-Liang Tsai, Shih-Han Chen, Guey-Sheng Liou* Electrochromism and Nonvolatile Memory Device Derived from Triphenylamine-Based Polyimides with Pendant Viologen Units. MACROMOLECULAR RAPID COMMUNICATIONS 2017-05-0338(9), 1600715.
  8. Hung-Ju Yen*, Changsheng Shan, Leeyih Wang, Ping Xu, Ming Zhou, Hsing-Lin Wang* Development of Conjugated Polymers for Memory Device Applications. POLYMERS 2017-01-129(12), 25.
Chapter of Publication
  1. Hung-Ju Yen, Jia-Hao Wu, Guey-Sheng Liou*, 2015, “High Performance Polyimides for Resistive Switching Memory Devices”, editor(s): Wen-Chang Chen, Electrical Memory Materials and Devices, pp. 136-166, United Kingdom: The Royal Society of Chemistry.
  2. Guey-Sheng Liou*, Hung-Ju Yen, 2012, “Polyimides”, editor(s): Matyjaszewski K and Möller M, Polymer Science: A Comprehensive Reference, pp. 497-535, Amsterdam: Elsevier BV.