Professor

Contact InformationYuning Li

Phone: 519-888-4567 x31105
Location: QNC 5621

Website

Biography Summary

Dr. Yuning Li is a Chemical Engineering Professor and a researcher in the Waterloo Institute for Nanotechnology at the University of Waterloo.

His research group studies optoelectronic materials that are suitable for the mass production of electronics using printing technologies. There is an emphasis on the development of printable electronic materials (polymers and nanomaterials) used in thin film transistors (for flexible displays, smart labels, chemo-/bio-sensors, themoelectrics, and memory devices), photovoltaics (for solar cells and photodetectors), and batteries.

Professor Li has been the co-recipient of several awards including the 3rd Annual national Aeronautics and Space administration (NASA) Nanotech Briefs Nano 50™ Awards for Printed Organic Electronics in the Technologies category in 2007. So far he has authored over 150 articles in peer-reviewed journals. Professor Li has filed over 120 US patent applications with 74 granted.

Research Interests

  • Organic and polymer semiconductors
  • Organic thin film transistors
  • Organic solar cells
  • Organic photovoltaics
  • Printed electronics
  • Printable conductive inks
  • Polymer synthesis
  • Nanomaterials
  • Electronic materials
  • Polymer solar cells
  • Polymer bulk-heterojunction photovoltaics
  • Small molecule-based OPV
  • Dye-sensitized Solar Cells
  • Organic Light-Emitting Diodes
  • Chemical/biosensors and photo-detectors
  • Low Temperature-processable Conductive inks
  • Fabrications and Characterization of Organic Electronics
  • Internet of Things (IoT)
  • Nanotechnology

Education

  • 1999, Doctorate, Polymer materials, Japan Advanced Institute of Science and Technology
  • 1988, Master's, Polymer materials, Dalian University of Technology
  • 1985, Bachelor's, Polymer materials, Dalian University of Technology

Courses*

  • CHE 241 - Materials Science and Engineering
    • Taught in 2014
  • CHE 102 - Chemistry for Engineers
    • Taught in 2014, 2018
  • CHE 745 - Research Topics in Polymer Science and Engineering
    • Taught in 2016, 2017
  • NE 125 - Introduction to Materials Science and Engineering
    • Taught in 2015, 2016
  • NE 499 - Special Topics in Nanostructured Materials
    • Taught in 2016, 2017, 2018
  • CHE 640 - Principles of Polymer Science
    • Taught in 2017, 2018
* Only courses taught in the past 5 years are displayed.

Selected/Recent Publications

  • Le Borgne, Mylène and Quinn, Jesse and Martin, Jaime and Stingelin, Natalie and Li, Yuning and Wantz, Guillaume, New 3, 3′-(ethane-1, 2-diylidene) bis (indolin-2-one)(EBI)-based small molecule semiconductors for organic solar cells, Journal of Materials Chemistry C, 5(21), 2017, 5143 - 5153
  • Quinn, Jesse and Patel, Haritosh and Haider, Fezza and Khan, Daid A and Li, Yuning, Converting a Semiconducting Polymer from Ambipolar into n-Type Dominant by Amine End-Capping, ChemElectroChem, 4(2), 2017, 256 - 260
  • He, Yinghui and Quinn, Jesse TE and Lee, Suhyun and Wang, Guan Ying and Li, Xu and Wang, Jinliang and Li, Yuning, An aromatic amine-containing polymer as an additive to ambipolar polymer semiconductor realizing unipolar n-type charge transport, Organic Electronics, 49, 2017, 406 - 414
  • Quinn, Jesse TE and Guo, Chang and Haider, Fezza and Patel, Haritosh and Khan, Daid A and Li, Yuning, Regioisomerism of an alkyl-substituted bithiophene comonomer in (3 E, 8 E)-3, 8-bis (2-oxoindolin-3-ylidene) naphtho-[1, 2-b: 5, 6-b′] difuran-2, 7 (3 H, 8 H)-dione (INDF)-based D--A polymers for organic thin film transistors, Journal of Materials Chemistry C, 5(24), 2017, 5902 - 5909
  • He, Yinghui and Quinn, Jesse TE and Hou, Dongliang and Ngai, Jenner HL and Li, Yuning, A small bandgap (3 E, 7 E)-3, 7-bis (2-oxoindolin-3-ylidene) benzo [1, 2-b: 4, 5-b′] difuran-2, 6 (3 H, 7 H)-dione (IBDF) based polymer semiconductor for near-infrared organic phototransistors, Journal of Materials Chemistry C, 5(46), 2017, 12163 - 12171
  • Quinn, Jesse TE and Zhu, Jiaxin and Li, Xu and Wang, Jinliang and Li, Yuning, Recent progress in the development of n-type organic semiconductors for organic field effect transistors, Journal of Materials Chemistry C, 5(34), 2017, 8654 - 8681
  • Quinn, Jesse TE and Haider, Fezza and Patel, Haritosh and Khan, Daid A and Wang, Zhi Yuan and Li, Yuning, Ultrafast photoresponse organic phototransistors based on pyrimido [4, 5-g] quinazoline-4, 9-dione polymer, Journal of Materials Chemistry C, 5(34), 2017, 8742 - 8748
  • Deng, Yunfeng and Quinn, Jesse and Sun, Bin and He, Yinghui and Ellard, Jackson and Li, Yuning, Thiophene-S, S-dioxidized indophenine (IDTO) based donor--acceptor polymers for n-channel organic thin film transistors, RSC Advances, 6(41), 2016, 34849 - 34854
  • Deng, Yunfeng and Sun, Bin and He, Yinghui and Quinn, Jesse and Guo, Chang and Li, Yuning, Thiophene-S, S-dioxidized Indophenine: A Quinoid-Type Building Block with High Electron Affinity for Constructing n-Type Polymer Semiconductors with Narrow Band Gaps, Angewandte Chemie, 128(10), 2016, 3520 - 3523
  • Guo, Libing and Quinn, Jesse and Wang, Jianli and Guo, Chang and Li, Xu and Wang, Jinliang and Li, Yuning, A fluorene-fused triphenodioxazine (FTPDO) based polymer with remarkable thermal stability and significantly enhanced charge transport performance in air, Dyes and Pigments, 132, 2016, 329 - 335
  • Deng, Yunfeng and Sun, Bin and Quinn, Jesse and He, Yinghui and Ellard, Jackson and Guo, Chang and Li, Yuning, Thiophene-S, S-dioxidized indophenines as high performance n-type organic semiconductors for thin film transistors, RSC Advances, 6(51), 2016, 45410 - 45418
  • Yang, Yiyi and Li, Yuning and Pritzker, Mark, Control of Cu2O film morphology using potentiostatic pulsed electrodeposition, Electrochimica Acta, 213, 2016, 225 - 235
  • Quinn, Jesse and Guo, Chang and Ko, Lewis and Sun, Bin and He, Yinghui and Li, Yuning, Pyrazino [2, 3-g] quinoxaline-2, 7-dione based π-conjugated polymers with affinity towards acids and semiconductor performance in organic thin film transistors, RSC Advances, 6(26), 2016, 22043 - 22051
  • Sun, Bin and Hong, Wei and Guo, Chang and Sutty, Sibi and Aziz, Hany and Li, Yuning, Utilization of hole trapping effect of aromatic amines to convert polymer semiconductor from ambipolar into n-type, Organic Electronics, 37, 2016, 190 - 196
  • Blaskovits, J Terence and Bura, Thomas and Beaupré, Serge and Lopez, Steven A and Roy, Carl and de Goes Soares, Julio and Oh, Adam and Quinn, Jesse and Li, Yuning and Aspuru-Guzik, Alán and others, A Study of the Degree of Fluorination in Regioregular Poly (3-hexylthiophene), Macromolecules, 50(1), 2016, 162 - 174
  • Guo, Chang and Quinn, Jesse and Sun, Bin and Li, Yuning, Dramatically different charge transport properties of bisthienyl diketopyrrolopyrrole-bithiazole copolymers synthesized via two direct (hetero) arylation polymerization routes, Polymer Chemistry, 7(27), 2016, 4515 - 4524
  • Pouliot, Jean-Rémi and Wakioka, Masayuki and Ozawa, Fumiyuki and Li, Yuning and Leclerc, Mario, Structural Analysis of Poly (3-hexylthiophene) Prepared via Direct Heteroarylation Polymerization, Macromolecular Chemistry and Physics, 217(13), 2016, 1493 - 1500
  • Le Borgne, Mylène and Quinn, Jesse and Martín, Jaime and Stingelin, Natalie and Wantz, Guillaume and Li, Yuning, Synthesis and properties of a novel narrow band gap oligomeric diketopyrrolopyrrole-based organic semiconductor, Dyes and Pigments, 131, 2016, 160 - 167
  • He, Yinghui and Guo, Chang and Sun, Bin and Quinn, Jesse and Li, Yuning, Branched alkyl ester side chains rendering large polycyclic (3 E, 7 E)-3, 7-bis (2-oxoindolin-3-ylidene) benzo [1, 2-b: 4, 5-b′] difuran-2, 6 (3 H, 7 H)-dione (IBDF) based donor--acceptor polymers solution-processability for organic thin film transistors, Polymer Chemistry, 6(37), 2015, 6689 - 6697
  • Deng, Yunfeng and Sun, Bin and He, Yinghui and Quinn, Jesse and Guo, Chang and Li, Yuning, based polymers for organic thin-film transistors with highly balanced ambipolar charge transport characteristics1, Chem. Commun, 51, 2015, 13515 - 13518
  • Quinn, Jesse and Guo, Chang and Sun, Bin and Chan, Adrian and He, Yinghui and Jin, Edward and Li, Yuning, Pyrimido [4, 5-g] quinazoline-4, 9-dione as a new building block for constructing polymer semiconductors with high sensitivity to acids and hole transport performance in organic thin film transistors, Journal of Materials Chemistry C, 3(45), 2015, 11937 - 11944
  • Kozycz, Lisa M and Guo, Chang and Manion, Joseph G and Tilley, Andrew J and Lough, Alan J and Li, Yuning and Seferos, Dwight S, Enhanced electron mobility in crystalline thionated naphthalene diimides, Journal of Materials Chemistry C, 3(43), 2015, 11505 - 11515
  • Hong, Wei and Guo, Chang and Sun, Bin and Li, Yuning, (3 Z, 3′ Z)-3, 3′-(Hydrazine-1, 2-diylidene) bis (indolin-2-one) as a new electron-acceptor building block for donor--acceptor π-conjugated polymers for organic thin film transistors, Journal of Materials Chemistry C, 3(17), 2015, 4464 - 4470
  • Quinn, Jesse and Jin, Edward and Li, Yuning, New synthetic route to pyrimido [4, 5-g] quinazoline-4, 9-diones, Tetrahedron Letters, 56(17), 2015, 2280 - 2282
  • Guo, Chang and Quinn, Jesse and Sun, Bin and Li, Yuning, Regioisomeric control of charge transport polarity for indigo-based polymers, Polymer Chemistry, 6(39), 2015, 6998 - 7004
  • Pouliot, Jean-Rémi and Sun, Bin and Leduc, Mikaël and Najari, Ahmed and Li, Yuning and Leclerc, Mario, A high mobility DPP-based polymer obtained via direct (hetero) arylation polymerization, Polymer Chemistry, 6(2), 2015, 278 - 282
  • Sun, Bin and Hong, Wei and Thibau, Emmanuel S and Aziz, Hany and Lu, Zheng-Hong and Li, Yuning, Polyethylenimine (PEI) as an effective dopant to conveniently convert ambipolar and p-type polymers into unipolar n-type polymers, ACS applied materials & interfaces, 7(33), 2015, 18662 - 18671
  • Guo, Chang and Quinn, Jesse and Sun, Bin and Li, Yuning, An indigo-based polymer bearing thermocleavable side chains for n-type organic thin film transistors, Journal of Materials Chemistry C, 3(20), 2015, 5226 - 5232
  • He, Yinghui and Guo, Chang and Sun, Bin and Quinn, Jesse and Li, Yuning, (3 E, 7 E)-3, 7-Bis (2-oxoindolin-3-ylidene)-5, 7-dihydropyrrolo [2, 3-f] indole-2, 6 (1 H, 3 H)-dione based polymers for ambipolar organic thin film transistors, Chemical Communications, 51(38), 2015, 8093 - 8096
  • Deng, Yunfeng and Sun, Bin and He, Yinghui and Quinn, Jesse and Guo, Chang and Li, Yuning, (3 E, 8 E)-3, 8-Bis (2-oxoindolin-3-ylidene) naphtho-[1, 2-b: 5, 6-b′] difuran-2, 7 (3 H, 8 H)-dione (INDF) based polymers for organic thin-film transistors with highly balanced ambipolar charge transport characteristics, Chemical Communications, 51(70), 2015, 13515 - 13518
  • Hong, Wei and Chen, Shaoyun and Sun, Bin and Arnould, Mark A and Meng, Yuezhong and Li, Yuning, Is a polymer semiconductor having a “perfect” regular structure desirable for organic thin film transistors?, Chemical science, 6(5), 2015, 3225 - 3235
  • Bridges, Colin R and Guo, Chang and Yan, Han and Miltenburg, Mark B and Li, Pengfei and Li, Yuning and Seferos, Dwight S, Conjugated polymers with switchable carrier polarity, Macromolecules, 48(16), 2015, 5587 - 5595
  • Sun, Bin and Hong, Wei and Aziz, Hany and Li, Yuning, A pyridine-flanked diketopyrrolopyrrole (DPP)-based donor--acceptor polymer showing high mobility in ambipolar and n-channel organic thin film transistors, Polymer Chemistry, 6(6), 2015, 938 - 945
  • Chen, Shaoyun and Sun, Bin and Hong, Wei and Aziz, Hany and Meng, Yuezhong and Li, Yuning, Influence of side chain length and bifurcation point on the crystalline structure and charge transport of diketopyrrolopyrrole-quaterthiophene copolymers (PDQTs), Journal of Materials Chemistry C, 2(12), 2014, 2183 - 2190
  • Guo, Chang and Sun, Bin and Quinn, Jesse and Yan, Zhuangqing and Li, Yuning, Synthesis and properties of indigo based donor--acceptor conjugated polymers, Journal of Materials Chemistry C, 2(21), 2014, 4289 - 4296
  • Sun, Bin and Hong, Wei and Thibau, Emmanuel and Aziz, Hany and Lu, Zheng-Hong and Li, Yuning, Facile conversion of polymer organic thin film transistors from ambipolar and p-type into unipolar n-type using polyethyleneimine (PEI)-modified electrodes, Organic Electronics, 15(12), 2014, 3787 - 3794
  • Sun, Bin and Hong, Wei and Yan, Zhuangqing and Aziz, Hany and Li, Yuning, Record high electron mobility of 6.3 cm2V- 1s- 1 achieved for polymer semiconductors using a new building block, Advanced Materials, 26(17), 2014, 2636 - 2642
  • He, Yinghui and Hong, Wei and Li, Yuning, New building blocks for π-conjugated polymer semiconductors for organic thin film transistors and photovoltaics, Journal of Materials Chemistry C, 2(41), 2014, 8651 - 8661
  • Yan, Zhuangqing and Sun, Bin and Guo, Chang and Li, Yuning, Synthesis and properties of azothiazole based π-conjugated polymers, Journal of Materials Chemistry C, 2(34), 2014, 7096 - 7103
  • Morin, Pierre-Olivier and Bura, Thomas and Sun, Bin and Gorelsky, Serge I and Li, Yuning and Leclerc, Mario, Conjugated Polymers à la Carte from Time-Controlled Direct (Hetero) Arylation Polymerization, ACS Macro Letters, 4(1), 2014, 21 - 24
  • Chen, Shaoyun and Sun, Bin and Hong, Wei and Yan, Zhuangqing and Aziz, Hany and Meng, Yuezhong and Hollinger, Jon and Seferos, Dwight S and Li, Yuning, Impact of N-substitution of a carbazole unit on molecular packing and charge transport of DPP--carbazole copolymers, Journal of Materials Chemistry C, 2(9), 2014, 1683 - 1690
  • Murphy, Leanne and Hong, Wei and Aziz, Hany and Li, Yuning, Organic photovoltaics with thick active layers (~ 800 nm) using a high mobility polymer donor, Solar Energy Materials and Solar Cells, 114, 2013, 71 - 81
  • Li, Yuning and Sonar, Prashant and Murphy, Leanne and Hong, Wei, High mobility diketopyrrolopyrrole (DPP)-based organic semiconductor materials for organic thin film transistors and photovoltaics, Energy & Environmental Science, 6(6), 2013, 1684 - 1710
  • Jiang, Changyun and Koh, Wei Lin and Leung, Man Yin and Hong, Wei and Li, Yuning and Zhang, Jie, Influences of alcoholic solvents on spray pyrolysis deposition of TiO2 blocking layer films for solid-state dye-sensitized solar cells, Journal of Solid State Chemistry, 198, 2013, 197 - 202
  • Hong, Wei and Sun, Bin and Guo, Chang and Yuen, Jonathan and Li, Yuning and Lu, Shaofeng and Huang, Chun and Facchetti, Antonio, Dipyrrolo [2, 3-b: 2′, 3′-e] pyrazine-2, 6 (1 H, 5 H)-dione based conjugated polymers for ambipolar organic thin-film transistors, Chemical Communications, 49(5), 2013, 484 - 486
  • Lu, Shaofeng and Drees, Martin and Yao, Yan and Boudinet, Damien and Yan, He and Pan, Hualong and Wang, Jingqi and Li, Yuning and Usta, Hakan and Facchetti, Antonio, 3, 6-Dithiophen-2-yl-diketopyrrolo [3, 2-b] pyrrole (isoDPPT) as an Acceptor Building Block for Organic Opto-Electronics, Macromolecules, 46(10), 2013, 3895 - 3906
  • Hong, Wei and Guo, Chang and Sun, Bin and Yan, Zhuangqing and Huang, Chun and Hu, Yan and Zheng, Yan and Facchetti, Antonio and Li, Yuning, Cyano-disubstituted dipyrrolopyrazinedione (CNPzDP) small molecules for solution processed n-channel organic thin-film transistors, Journal of Materials Chemistry C, 1(36), 2013, 5624 - 5627
  • Yan, Zhuangqing and Sun, Bin and Li, Yuning, Novel stable (3E, 7E)-3, 7-bis (2-oxoindolin-3-ylidene) benzo [1, 2-b: 4, 5-b′] difuran-2, 6 (3H, 7H)-dione based donor--acceptor polymer semiconductors for n-type organic thin film transistors, Chemical Communications, 49(36), 2013, 3790 - 3792
  • Sun, Bin and Hong, Wei and Aziz, Hany and Abukhdeir, Nasser Mohieddin and Li, Yuning, Dramatically enhanced molecular ordering and charge transport of a DPP-based polymer assisted by oligomers through antiplasticization, Journal of Materials Chemistry C, 1(29), 2013, 4423 - 4426
  • Li, Yuning and Sun, Bin and Sonar, Prashant and Singh, Samarendra P, Solution processable poly (2, 5-dialkyl-2, 5-dihydro-3, 6-di-2-thienyl-pyrrolo [3, 4-c] pyrrole-1, 4-dione) for ambipolar organic thin film transistors, Organic Electronics, 13(9), 2012, 1606 - 1613
  • Li, Yuning and Sonar, Prashant and Singh, Samarendra P and Ooi, Zi En and Lek, Erica SH and Loh, Melissa QY, Poly (2, 5-bis (2-octyldodecyl)-3, 6-di (furan-2-yl)-2, 5-dihydro-pyrrolo [3, 4-c] pyrrole-1, 4-dione-co-thieno [3, 2-b] thiophene): a high performance polymer semiconductor for both organic thin film transistors and organic photovoltaics, Physical Chemistry Chemical Physics, 14(19), 2012, 7162 - 7169
  • Sonar, Prashant and Singh, Samarendra P and Williams, Evan L and Li, Yuning and Soh, Mui Siang and Dodabalapur, Ananth, Furan containing diketopyrrolopyrrole copolymers: synthesis, characterization, organic field effect transistor performance and photovoltaic properties, Journal of Materials Chemistry, 22(10), 2012, 4425 - 4435
  • Sonar, Prashant and Foong, Thelese Ru Bao and Singh, Samarendra P and Li, Yuning and Dodabalapur, Ananth, A furan-containing conjugated polymer for high mobility ambipolar organic thin film transistors, Chemical Communications, 48(67), 2012, 8383 - 8385
  • Zeng, Wenjin and Yong, Kian Soon and Kam, Zhi Ming and Chen, Zhi-kuan and Li, Yuning, Effect of MoO3 as an interlayer on the performance of organic solar cells based on ZnPc and C60, Synthetic Metals, 161(23-24), 2012, 2748 - 2752
  • Liu, Hongjun and Goh, Wei-Peng and Leung, Man-Yin and Li, Yuning and Norsten, Tyler B, Effect of nanoparticle stabilizing ligands and ligand-capped gold nanoparticles in polymer solar cells, Solar Energy Materials and Solar Cells, 96, 2012, 302 - 306
  • Sun, Bin and Hong, Wei and Aziz, Hany and Li, Yuning, Diketopyrrolopyrrole-based semiconducting polymer bearing thermocleavable side chains, Journal of Materials Chemistry, 22(36), 2012, 18950 - 18955
  • Hong, Wei and Guo, Chang and Li, Yuning and Zheng, Yan and Huang, Chun and Lu, Shaofeng and Facchetti, Antonio, Synthesis and thin-film transistor performance of benzodipyrrolinone and bithiophene donor-acceptor copolymers, Journal of Materials Chemistry, 22(41), 2012, 22282 - 22289
  • Hong, Wei and Sun, Bin and Aziz, Hany and Park, Won-Tae and Noh, Yong-Young and Li, Yuning, A conjugated polyazine containing diketopyrrolopyrrole for ambipolar organic thin film transistors, Chemical Communications, 48(67), 2012, 8413 - 8415
  • Sonar, Prashant and Singh, Samarendra P and Li, Yuning and Ooi, Zi-En and Ha, Tae-jun and Wong, Ivy and Soh, Mui Siang and Dodabalapur, Ananth, High mobility organic thin film transistor and efficient photovoltaic devices using versatile donor--acceptor polymer semiconductor by molecular design, Energy & Environmental Science, 4(6), 2011, 2288 - 2296
  • Koh, Wee Shing and Pant, Mihir and Akimov, Yuriy A and Goh, Wei Peng and Li, Yuning, Three-dimensional optoelectronic model for organic bulk heterojunction solar cells, IEEE Journal of Photovoltaics, 1(1), 2011, 84 - 92
  • Li, Yuning and Sonar, Prashant and Singh, Samarendra P and Soh, Mui Siang and van Meurs, Martin and Tan, Jozel, Annealing-Free High-Mobility Diketopyrrolopyrrole- Quaterthiophene Copolymer for Solution-Processed Organic Thin Film Transistors, Journal of the American Chemical Society, 133(7), 2011, 2198 - 2204
  • Li, Yuning and Sonar, Prashant and Singh, Samarendra P and Soh, Mui Siang and Van Meurs, Martin and Tan, Jozel, Design of high mobility DPP-based polymer semiconductors for organic thin film transistors, Polymer Preprints, 52, 2011, 941 - 942
  • Jiang, Changyun and Leung, Man Yin and Koh, Wei Ling and Li, Yuning, Influences of deposition and post-annealing temperatures on properties of TiO2 blocking layer prepared by spray pyrolysis for solid-state dye-sensitized solar cells, Thin Solid Films, 519(22), 2011, 7850 - 7854
  • Li, Yuning and Sonar, Prashant and Singh, Samarendra P and Zeng, Wenjin and Soh, Mui Siang, 3, 6-Di (furan-2-yl) pyrrolo [3, 4-c] pyrrole-1, 4 (2H, 5H)-dione and bithiophene copolymer with rather disordered chain orientation showing high mobility in organic thin film transistors, Journal of Materials Chemistry, 21(29), 2011, 10829 - 10835
  • Sonar, Prashant and Singh, Samarendra P and Li, Yuning and Soh, Mui Siang and Dodabalapur, Ananth, A Low-Bandgap Diketopyrrolopyrrole-Benzothiadiazole-Based Copolymer for High-Mobility Ambipolar Organic Thin-Film Transistors, Advanced materials, 22(47), 2010, 5409 - 5413
  • Li, Yuning and Singh, Samarendra P and Sonar, Prashant, A High Mobility P-Type DPP-Thieno [3, 2-b] thiophene Copolymer for Organic Thin-Film Transistors, Advanced Materials, 22(43), 2010, 4862 - 4866
  • Zeng, Wenjin and Yong, Kian Soon and Kam, Zhi Ming and Zhu, Furong and Li, Yuning, Effect of blend layer morphology on performance of ZnPc: C 60-based photovoltaic cells, Applied Physics Letters, 97(13), 2010