Selected Publications
1. The Quest for Air Stability in Organic Semiconductors, Cindy G. Tang, Kunqi Hou, and Wei Lin Leong, Chemistry of Materials, 36(1), 28-53 (2024).
2. Highly Stable Ladder-Type Conjugated Polymer Based Organic Electrochemical Transistors for Low Power and Signal Processing-Free Surface Electromyogram Triggered Robotic Hand Control , Zhongliang Zhou, Xihu Wu, Teck Lip Dexter Tam, Cindy G. Tang, Shuai Chen, Kunqi Hou, Ting Li, Qiang He, Ji-Jon Sit, Jianwei Xu, Wei Lin Leong, Advanced Functional Materials, 34(1), 2305780 (2024).
3. Mechanoreceptor-inspired in-ear triboelectric sensor for unconstrained physiological monitoring and human–machine interaction, Qiang He, Zhongliang Zhou, Shuai Chen, Cindy G. Tang, Wei Lin Leong, Nano Energy, 117, 108900 (2023).
4. High Performance, Flexible, and Thermally Stable All-Solid-State Organic Electrochemical Transistor Based on Thermoplastic Polyurethane Ion Gel , Kunqi Hou, Shuai Chen, Akshay Moudgil, Xihu Wu, Teck Lip Dexter Tam, Wen Siang Lew, and Wei Lin Leong, ACS Applied Electronic Materials, 5(4), 2215 (2023).
5. Biocompatible Solid-State Ion-Sensitive Organic Electrochemical Transistor for Physiological Multi-Ions Sensing, Akshay Moudgil, Kunqi Hou, Ting Li, Wei Lin Leong, Advanced Materials Technologies, 8(18), 2300605 (2023).
6. High Performing Solid-State Organic Electrochemical Transistors Enabled by Glycolated Polythiophene and Ion-Gel Electrolyte with a Wide Operation Temperature Range from −50 to 110 °C, Xihu Wu, Shuai Chen, Maximilian Moser, Akshay Moudgil, Sophie Griggs, Adam Marks, Ting Li, Iain McCulloch, Wei Lin Leong, Advanced Functional Materials, 33(3), 2209354 (2023).
7. Highly Sensitive Transistor Sensor for Biochemical Sensing and Health Monitoring Applications: A Review, Akshay Moudgil, Wei Lin Leong, IEEE Sensors Journal , 23(8), 8028 (2023).
8. Biodegradable Materials for Transient Organic Transistors,, Meera Stephen, Ali Nawaz, Sang Yeon Lee, Prashant Sonar, Wei Lin Leong, Advanced Functional Materials, 33(6), 2208521 (2023).
9. All‐Polymer Bulk‐Heterojunction Organic Electrochemical Transistors with Balanced Ionic and Electronic Transport, Xihu Wu, Teck Lip Dexter Tam, Shuai Chen, Teddy Salim, Xiaoming Zhao, Zhongliang Zhou, Ming Lin, Jianwei Xu, Yueh‐Lin Loo, Wei Lin Leong, Advanced Materials, 34(42), 2206118 (2022).
10. Biocompatible ionic liquids in high-performing organic electrochemical transistors for ion detection and electrophysiological monitoring, Ting Li, Jie Yan Cheryl Koh, Akshay Moudgil, Huan Cao, Xihu Wu, Shuai Chen, Kunqi Hou, Abhijith Surendran, Meera Stephen, Cindy Tang, Chongwu Wang, Qi Jie Wang, Chor Yong Tay, Wei Lin Leong, ACS Nano , 16(8), 12049-12060 (2022).
11. Alkali Additives Enable Efficient Large Area (>55 cm2) Slot‐Die Coated Perovskite Solar Modules, Prem Jyoti Singh Rana, Benny Febriansyah, Teck Ming Koh, Bening Tirta Muhammad, Teddy Salim, Thomas JN Hooper, Anil Kanwat, Biplab Ghosh, Priyanka Kajal, Jia Haur Lew, Yeow Chong Aw, Natalia Yantara, Annalisa Bruno, Sumod A Pullarkat, Joel W Ager, Wei Lin Leong, Subodh G Mhaisalkar, Nripan Mathews, Advanced Functional Materials, 32(22), 2113026 (2022).
12. Ultra-Lightweight, Highly Permeable, and Waterproof Fibrous Organic Electrochemical Transistors for On-Skin Bioelectronics, Shuai Chen, Kunqi Hou, Ting Li, Xihu Wu, Zhe Wang, Lei Wei, Wei Lin Leong, Advanced Materials Technologies, 8(1), 2200611 (2022).
13. Crown ether enabled enhancement of ionic–electronic properties of PEDOT:PSS, Meera Stephen, Xihu Wu, Ting Li, Teddy Salim, Kunqi Hou, Shuai Chen, Wei Lin Leong, Materials Horizon, 9(9), 2408-2415 (2022).
14. A Highly Conducting Polymer for Self-Healable, Printable, and Stretchable Organic Electrochemical Transistor Arrays and Near Hysteresis-Free Soft Tactile Sensors, Xiaoqian Su, Xihu Wu,Shuai Chen,Anu Maashaa Nedumaran,Meera Stephen,Kunqi Hou,Bertrand Czarny,Wei Lin Leong, Advanced Materials, 34(19), 2200682 (2022).
15. Polaron Delocalization Dependence of the Conductivity and the Seebeck Coefficient in Doped Conjugated Polymers,Teck Lip Dexter Tam, Akshay Moudgil, Wei Jie The, Zicong Marvin Wong, Albertus Denny Handoko, Sheau Wei Chien, Shuo-Wang Yang, Boon Siang Yeo, Wei Lin Leong, and Jianwei Xu, The Journal of Physical Chemistry B, 126 (9), 2073-2085 (2022).
16. Halide perovskite-based indoor photovoltaics: recent development and challenges, Bening Tirta Muhammad, Shaoni Kar, Meera Stephen, Wei Lin Leong, Materials Today Energy, 23, 100907 (2022).
17. Ionic-Liquid Induced Morphology Tuning of PEDOT:PSS for High Performance Organic Electrochemical Transistors, Xihu Wu, Meera Stephen, Tania C. Hidalgo, Teddy Salim, Jokubas Surgailis, Abhijith Surendran, Xiaoqian Su, Ting Li, Sahika Inal, and Wei Lin Leong, Advanced Functional Materials, 31(1), 2108510 (2022).
18. Operando Direct Observation of Filament Formation in Resistive Switching Devices Enabled by a Topological Transformation Molecule, Kunqi Hou, Shuai Chen, Cheng Zhou, Linh Lan Nguyen, Putu Andhita Dananjaya, Martial Duchamp, Guillermo Bazan, Wen Siang Lew and Wei Lin Leong, Nano Letters, 21(21), 9262-9269 (2021).
19. Organic Electrochemical Transistors for In Vivo Bioelectroncs, Ali Nawaz, Qian Liu, Wei Lin Leong, Karthryn E. Fairfull-Smith, Prashant Sonar, Advanced Materials, 33(49), 2101874 (2021).
20. Ammonium sulfate treatment at metal oxide/perovskite interface boosts operational stability of perovskite solar cells, Bening Tirta Muhammad, Teddy Salim, Annalisa Bruno, Andrew C. Grimsdale, Wei Lin Leong, Journal of Materials Chemistry C, 9(40), 14334 (2021).
21. Self-powered organic electrochemical transistors with stable, light-intensity independent operation enabled by carbon-based perovskite solar cells, Abhijith Surendran, Shuai Chen, Jia Haur Lew, Xihu Wu, Teck Ming Koh, Wei Lin Leong, Advanced Materials Technologies, In press, 2021, DOI: 10.1002/admt.202100565.
22. Slot-die Coated Methylammonium-Free Perovskite Solar Cells with 18% efficiency, Mathilde Fievez, Prem Jyoti Singh Rana, Teck Ming Koh, Matthieu Manceau, Jia Haur Lew, Nur Fadilah Jamaludin, Biplab Ghosh, Annalisa Bruno, Stephane Cros, Solenn Berson, Subodh Mhaisalkar, and Wei Lin Leong, Solar Energy Materials and Solar Cells, 230(15), 111189 (2021).
23. Recent advancements and perspectives on light management and high performance in perovskite light-emitting diodes , Shaoni Kar, Nur Fadilah Jamaludin, Natalia Yantara, Subodh G Mhaisalkar, and Wei Lin Leong, Nanophotonics, 10(8), 2103 (2021).
24. Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors, Xihu Wu, Qian Liu, Abhijith Surendran, Steven E. Bottle, Prashant Sonar, and Wei Lin Leong, Advanced Electronic Materials, 7(1), 2000701 (2021).
25. Contact Modulated Ionic Transfer Doping in All‐Solid‐State Organic Electrochemical Transistor for Ultra‐High Sensitive Tactile Perception at Low Operating Voltage, Shuai Chen, Abhijith Surendran, Xihu Wu, Wei Lin Leong, Advanced Functional Materials, 30(51), 2070340 (2020).
26. Recent Technological Advances in Fabrication and Application of Organic Electrochemical Transistors, Shuai Chen, Abhijith Surendran, Xihu Wu, Sang Yeon Lee, Meera Stephen, Wei Lin Leong, Advanced Materials Technologies, 5(12), 2000523 (2020).
27. Novel amphiphilic corannulene additive for moisture-resistant perovskite solar cells, Bening Tirta Muhammad, Viktor Barat, Koh Teck Ming, Xihu Wu, Abhijith Surendran, Natalia Yantara, Annalisa Bruno, Andrew C. Grimsdale, Mihaiela C. Stuparu and Wei Lin Leong, Chemical Communications, 56, 11997-12000 (2020).
28. Optogenetics inspired transition metal dichalcogenide neuristors for in-memory deep recurrent neural networks, Rohit Abraham John, Jyotibdha Acharya, Chao Zhu, Abhijith Surendran, Sumon Kumar Bose, Apoorva Chaturvedi, Nidhi Tiwari, Yang Gao, Yongmin He, Keke K Zhang, Manzhang Xu, Wei Lin Leong, Zheng Liu, Arindam Basu, Nripan Mathews, Nature Communications, 11(1), 1-9 (2020).
29. Self-healable organic electrochemical transistor with high transconductance, fast response and long-term stability, Jieun Ko, Xihu Wu, Abhijith Surendran, Bening Tirta Muhammad, Wei Lin Leong, ACS Applied Materials and Interfaces, 12(30), 33979-33988 (2020).
30. Non-volatile Organic Transistor Memory based on Black Phosphorus Quantum dots as Charge Trapping Layer, Priyanka Kumari, Jieun Ko, V. Ramgopal Rao, Subodh Mhaisalkar, Wei Lin Leong, IEEE Electron Device Letters, 41(6), 852-855 (2020).
31. Universal Spray-deposition Process for Scalable, High Performance and Stable Organic Electrochemical Transistors, Xihu Wu, Abhijith Surendran, Maximilian Moser, Shuai Chen, Bening Tirta Muhammad, Iuliana Petruta Maria, Iain McCulloch, Wei Lin Leong, ACS Applied Materials and Interfaces, 12(18), 20757 (2020).
32. Cubic NaSbS2 as an Ionic-Electronic Coupled Semiconductor for Switchable Photovoltaic and Neuromorphic Device Applications, P.C. Harikesh, Abhijith Surendran, Biplab Ghosh, Rohit Abraham John, Arjun Moorthy, Natalia Yantara, Teddy Salim, Krishnamoorthy Thirumal, Wei Lin Leong, Subodh Mhaisalkar, Nripan Mathews, Advanced Materials, 32(7), 1906976 (2020).
33. Lightweight, Superelastic Boron Nitride/Polydimethylsiloxane Foam as Air Dielectric Substitute for Multifunctional Capacitive Sensor Applications, Roland Yingjie Tay, Hongling Li, Jinjun Lin, Hong Wang, Jacob Song Kiat Lim, Shuai Chen, Wei Lin Leong, Siu Hon Tsang, Edwin Hang Tong Teo, Advanced Functional Materials, 30(10), 1909607 (2020).
34. Water robustness in organic thin-film transistors based on pyrazino[2,3-g]quinoxaline-dione conjugated polymer, Jieun Ko, Chee Koon Ng, Arramel, Andrew T.S. Wee, Teck Lip Dexter Tam, Wei Lin Leong, Journal of Materials Chemistry C, 8 (12), 4157-4163 (2020).
35. Proquinoidal-Conjugated Polymer as an Effective Strategy for the Enhancement of Electrical Conductivity and Thermoelectric Properties, Teck Lip Dexter Tam, Chee Koon Ng, Siew Lay Lim, Erol Yildirim, Jieun Ko, Wei Lin Leong, Shuo-Wang Yang, Jianwei Xu, Chemistry of Materials, 31(20), 8543-8550 (2019).
36. Large area, high efficiency and stable perovskite solar cells enabled by fine control of intermediate phase, Tao Ye, Guifang Han, Abhijith Surendran, Jia Li, Teck Ming Koh, Subodh G. Mhaisalkar and Wei Lin Leong, Solar Energy Materials and Solar Cells, 201, 110113 (2019).
37. Perturbation Induced Seeding and Crystallization of Hybrid Perovskites Over Surface Modified Substrates for Optoelectronic Devices, Riyas Ahmad, Abhijith Surendran, PC Harikesh, Reinhard Haselsberger, Nur Fadilah Jamaludin, Rohit Abraham John, Teck Ming Koh, Annalisa Bruno, Wei Lin Leong, Nripan Mathews, Maria-Elisabeth Michel-Beyerle, Subodh G Mhaisalkar, ACS Applied Materials and Interfaces, 11(31), 27727-27734 (2019).
38. All inorganic mixed halide perovskite nanocrystal-graphene hybrid photodetector: from ultrahigh gain to photostability, Abhijith Surendran, Xuechao Yu, Raihana Begum, Ye Tao, Qi Jie Wang, Wei Lin Leong, ACS Applied Materials and Interfaces, 11(30), 27064-27072 (2019).
39. Self-Healable Electrochromic Ion Gels for Low Power and Robust Displays, J. Ko, A. Surendran, B. Febriansyah, W. L. Leong, Organic Electronics, 71, 199-205 (2019).
40. Ionic-Liquid Doping Enables High Transconductance, Fast Response Time, and High Ion Sensitivity in Organic Electrochemical Transistors, X. Wu, A. Surendran, J. Ko, O. Filonik, E. M. Herzig, P. Müller-Buschbaum, W. L. Leong, Advanced Materials, 31(2), 1805544 (2018).
41. Efficient and Ambient-Air-Stable Solar Cell with High Oriented 2D@3D Perovskites, Tao Ye, Annalisa Bruno, Guifang Han, Teck Ming Koh, Jia Li, Nur Fadilah Jamaludin, Cesare Soci, Subodh G Mhaisalkar, Wei Lin Leong, Advanced Functional Materials, 28(30), 1801654 (2018).
42. Diketopyrrolopyrrole based organic semiconductors with different numbers of thiophene units: symmetry tuning effect on electronic devices, Qian Liu, Abhijith Surendran, Krishna Feron, Sergei Manzhos, Xuechen Jiao, Christopher R. McNeil, Steven E. Bottle, John Bell, Wei Lin Leong, Prashant Sonar, New Journal of Chemistry, 42 (6), 4017-4028 (2018).
43. Human Hair Keratin for Biocompatible Flexible and Transient Electronic Devices, Jieun Ko, Luong T. H. Nguyen, Abhijith Surendran, Bee Yi Tan, Kee Woei Ng, Wei Lin Leong, ACS Applied Materials and Interfaces, 9(49), 43004-43012 (2017).
44. Flexible Ionic-Electronic Hybrid Oxide Synaptic TFTs with Programmable Dynamic Plasticity for Brain-Inspired Neuromorphic Computing, Rohit A. John, Jieun Ko, Mohit R. Kulkarni, Naveen Tiwari, Nguyen Anh Chien, Geok Ing Ng, Wei Lin Leong, Nripan Mathews, Small, 13(32), 1701193 (2017).
45. Direct arylation polymerization towards ultra-low bandgap poly(thienoisoindigo-alt-diketopyrrolepyrrole) conjugated polymers: The effect of β-protection on the polymerization and properties of the polymers, Kai Wang, Jing Huang, Jieun Ko, Wei Lin Leong, Mingfeng Wang, Journal of Polymer Science Part A - Polymer Chemistry, 55(19), 3205-3213 (2017).
46. Identifying Fundamental Limitations in Halide Perovskite Solar Cells, Wei Lin Leong, Zi-En Ooi, Dharani Sabba, Chenyi Yi, Shaik M. Zakeeruddin, Michael Grätzel, Jeffrey M. Gordon, Eugene A. Katz, Nripan Mathews, Advanced Materials, 28, 2439-2445 (2016).
47. Improvement in polymer solar cell performance and eliminating light soaking effect via UV-light treatment on conjugated polyelectrolyte cathode interlayer, Li Xianqiang, Liu Jie Gao Shifeng, Li Jun, Wang Hong, Tang Xiaohong, Liu Bin, Wei Lin Leong, Organic Electronics, 25, 105-111 (2015).
48. Efficient polymer solar cells enabled by low temperature processed ternary metal oxide as electron transport interlayer with large stoichiometry window, Wei Lin Leong, Yi Ren, Debbie Seng, Zihao Huang, Sing Yang Chiam, Ananth Dodabalapur, ACS Applied Materials and Interfaces, 7(21), 11099-11106 (2015).
49. Lead-free germanium iodide perovskite materials for photovoltaic applications, Thirumal Krishnamoorthy, Hong Ding, Chen Yan, Wei Lin Leong, Tom Baikie, Ziyi Zhang, Matthew Sherburne, Shuzhou Li, Mark Asta, Nripan Mathews, Subodh G Mhaisalkar, Journal of Materials Chemistry A, 3(47), 23829-23832 (2015).
50. Formamidinium tin-based perovskite with low Eg for photovoltaic applications, Teck Ming Koh, Thirumal Krishnamoorthy, Natalia Yantara, Chen Shi, Wei Lin Leong, Pablo P Boix, Andrew C Grimsdale, Subodh G Mhaisalkar, Nripan Mathews, Journal of Materials Chemistry A, 3(29), 14996-15000 (2015).
51. Lead-free halide perovskite solar cells with high photocurrents realized through vacancy modulation, Mulmudi Hemant Kumar, Sabba Dharani, Wei Lin Leong, Pablo P. Boix, Rajiv R. Prabhakar, Tom Baikie, Chen Shi, Hong Ding, Ramesh Ramamoorthy, Mark Asta, Michael Grätzel, Subodh G. Mhaisalkar, Nripan Mathews, Advanced Materials, 26(41), 7122-7127 (2014).
52. A swivel-cruciform thiophene based hole-transporting material for efficient perovskite solar cells, Thirumal Krishnamoorthy, Fu Kunwu, Pablo P. Boix, Hairong Li, Teck Ming Koh, Wei Lin Leong, Satvasheel Powar, Andrew Grimsdale, Michael Grätzel, Nripan Mathews, Subodh G. Mhaisalkar, Journal of Materials Chemistry A, 2(18), 6305-6309 (2014).
53. Intensity Dependence of Current-Voltage Characteristics and Recombination in High-Efficiency Solution-Processed Small-Molecule Solar Cells Aung Ko Ko Kyaw, Dong Hwan Wang, Vinay Gupta, Wei Lin Leong, Ke Lin, Guillermo C. Bazan, Alan J. Heeger, ACS Nano, 7, 4569-4577 (2013
54. Effects of Impurities on Operational Mechanism of Organic Bulk Heterojunction Solar Cells, Loren Kaake, Xuan-Dung Dang, Wei Lin Leong, Yuan Zhang, Alan J. Heeger, Thuc-Quyen Ngyuyen, Advanced Materials, 25, 1706-1712 (2013)
55. Understanding the role of thermal processing in high performance solution processed small molecule bulk heterojunction solar cells, Wei Lin Leong, Gregory C. Welch, Jason Seifter, Junghwa Seo, Guillermo C. Bazan, Alan J. Heeger, Advanced Energy Materials, 3, 356-363 (2013).
56. A New Terthiophene-Thienopyrrolodione Copolymer-Based Bulk Heterojunction Solar Cell with High Open-Circuit Voltage, Jang Jo, Agnieszka Pron, Philippe Berrouard, Wei Lin Leong, Ji Sun Moon, Mario Leclerc, Alan J. Heeger, Advanced Energy Materials, 2, 1397-1403, (2012).
57. Role of trace impurities in photovoltaic performance of solution processed small molecule bulk heterojunction solar cells, Wei Lin Leong, Gregory C. Welch, Loren G. Kaake, Christopher J. Takacs, Yanming Sun, Guillermo C. Bazan, Alan J. Heeger, Chemical Science, 3, 2103-2109 (2012).
58. Manifestation of carrier relaxation through the manifold of localized states in PCDTBT:PC60BM bulk heterojunction material: The role of PC84BM traps on the carrier transport, Wei Lin Leong, Gerardo Hernandez-Sosa, Sarah R. Cowan, Daniel Moses, Alan J. Heeger, Advanced Materials, 24(17), 2273-2277 (2012).
59. Charge Formation, Recombination and Sweep-out Dynamics in Organic Solar Cells (Feature Article), Sarah R. Cowan, Natalie Banerji, Wei Lin Leong, Alan J. Heeger, Advanced Functional Materials, 22(6), 1116-1128 (2012).
60. Solution-processed small-molecule solar cells with 6.7% efficiency, Yanming Sun, Gregory C. Welch, Wei Lin Leong, Christopher J. Takacs, Guillermo C. Bazan, Alan J. Heeger, Nature Materials, 11, 44-48 (2012).
61. Identifying a Threshold Impurity Level for Organic Solar Cells: Enhanced First-Order Recombination Via Well-Defined PC(84)BM Traps in Organic Bulk Heterojunction Solar Cells, Sarah R. Cowan, Wei Lin Leong, Natalie Banerji, Alan J. Heeger, Advanced Functional Materials, 21(16), 3083 (2011).
62. Differential Resistance Analysis of Charge Carrier Losses in Organic Bulk Heterojunction Solar Cells: Observing the Transition from Bimolecular to Trap-Assisted Recombination and Quantifying the Order of Recombination, Wei Lin Leong, Sarah R. Cowan, Alan J. Heeger, Advanced Energy Materials, 1(4), 517 (2011).
63. Solution processed non-volatile top-gate polymer field-effect transistors, Wei Lin Leong, Nripan Mathews, Bertha Tan, Subramanian Vaidyanathan, Florian Dötz, Subodh G. Mhaisalkar, Journal of Materials Chemistry, 21, 8971 (2011).
64. Towards printable organic thin film transistor based flash memory devices, Wei Lin Leong, Nripan Mathews, Bertha Tan, Subramanian Vaidyanathan, Florian Dötz, Subodh G. Mhaisalkar, Journal of Materials Chemistry, 21, 5203 (2011).
65. Micellar poly(styrene-b-4-vinylpyridine)-nanoparticle hybrid system for non-volatile organic transistor memory, Wei Lin Leong, Nripan Mathews, Subodh G. Mhaisalkar, Yeng Ming Lam, Tupei Chen, Pooi See Lee, Journal of Materials Chemistry, 19, 7354 (2009).
66. Charging Dynamics of Discrete Gold Nanoparticles Arrays Self-assembled within a Poly(styrene-b-4-vinylpyridine) Diblock Copolymer Template, Wei Lin Leong, Nripan Mathews, Subodh G. Mhaisalkar, Tupei Chen, Pooi See Lee, Applied Physics Letter, 93, 222908 (2008).
67. Non-volatile Organic Memory Applications Enabled by In-situ Synthesis of Gold Nanoparticles in a Self-assembled Block Copolymer, Wei Lin Leong, Pooi See Lee, Anup Lohani, Yeng Ming Lam, Tupei Chen, Sam Zhang, Ananth Dodabalapur, Subodh G. Mhaisalkar, Advanced Materials, 20, 2325 (2008).
68. Charging phenomena in Pentacene-Gold nanoparticle memory device, Wei Lin Leong, Pooi See Lee, Tupei Chen, Subodh G. Mhaisalkar, Ananth Dodabalapur, Applied Physics Letter, 90, 042906 (2007).