Selected Publications

1. 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).

2. 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).

3. 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).

4. 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).

5. 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).

6. 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).

7. 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).

8. 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).

9. 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).

10. 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).

11. 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).

12. 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).

13. 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).

14. 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).

15. 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).

16. 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).

17. 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).

18. 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

19. 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)

20. 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).

21. 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).

22. 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).

23. 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).

24. 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).

25. 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).

26. 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).

27. 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).

28. 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).

29. 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).

30. 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).

31. 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).

32. 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).

33. 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).