People

Title

Senior Research Fellow

Degree

PhD in Physics

Research Interests

Optoelectronics, Semiconductor device physics, High-throughput optical experimentation, Machine Learning, Sustainable energy storage devices, Excited state dynamics

Research Group

Dr. Maciej Koperski

Group Webpage

http://localhost/oifim/koperski/

Office Location

S9-09-01-39

Selected Publications

• Yang Bai, Zi Hui Jonathan Khoo, Riko I Made, Huiqing Xie, Carina Yi Jing Lim, Albertus Denny Handoko, Vijila Chellappan, Jianwei Jayce Cheng, Fengxia Wei, Yee‐Fun Lim, Kedar Hippalgaonkar, Closed‐Loop Multi‐Objective Optimization for Cu–Sb–S Photo‐Electrocatalytic Materials’ Discovery, Advanced Materials, 36 (2) 2304269, 2024.
• Erfan Rezvani Ghomi, Vijila Chellappan, Rasoul Esmaeely Neisiany, Nileshkumar Dubey, Kottaiswamy Amuthavalli, Navin Kumar Verma, Rajamani Lakshminarayanan, Seeram Ramakrishna, An innovative tunable bimodal porous PCL/gelatin dressing fabricated by electrospinning and 3D printing for efficient wound healing and scalable production, Composites Science and Technology, 247, 110402, 2024.
• Erfan Rezvani Ghomi, Venkatesh Mayandi, Vijila Chellappan, Nileshkumar Dubey, Kottaiswamy Amuthavalli, Rasoul Esmaeely Neisiany, Veluchamy Amutha Barathi, Navin Kumar Verma, Rajamani Lakshminarayanan, Seeram Ramakrishna, Biomimetic aligned nanofibrous dressings containing cell-selective polymer enhance diabetic wound regeneration, Materials & Design 238, 112694, 2024.
• Brindha Ramasubramanian, Vundrala Sumedha Reddy, Ye Zhen, Seeram Ramakrishna, Vijila Chellappan, Metal organic framework derived zirconia-carbon nano porous mat for integrated strain sensor powered by solid state supercapacitor, Advanced Fiber Materials, 1, 13, 2023.
• Anas Abutaha, Vijila Chellappan, Pawan Kumar, Kedar Hippalgaonkar, Linking polaron signatures to thermoelectric properties in doped semiconducting polymers, Applied Energy Materials, 6, 3960-3969, 2023.
• Mohamed I. Omer, Tao Ye, Xianqiang Li, Shaoyang Ma, Dan Wu, Lei Wei, Xiaohong Tang, Seeram Ramakrishna, Qiang Zhu, Shanxing, Xiong, Jianwei Xu, Chellappan Vijila, Xizu Wang, Two Quasi-interfacial p-n Junctions Observed by a Dual-Irradiation System in Perovskite Solar Cells, npj Flexible Electronics, 7, 23, 2023.
• Vijila Chellappan, Adithya Kumar, Saif Ali khan, Pawan Kumar, Kedar Hippalgaonkar, Diagnosis of doped conjugated polymer films using hyperspectral imaging, Digital Discovery, 2 (2), 471-480, 2023.
• Erfan Rezvani Ghomi, Rajamani Lakshminarayanan, Vijila Chellappan, Navin Kumar Verma, Amutha Chinnappan, Rasoul Esmaeely Neisiany, Kottaiswamy Amuthavalli, Nileshkumar Dubey, Roger Narayan, Seeram Ramakrishna, Electrospun aligned PCL/Gelatin scaffolds mimicking the skin ECM for effective antimicrobial wound dressings, Advanced Fiber Materials, 1-17, 2022.
• Daniil Bash, Yongqiang Cai, Vijila Chellappan, Swee Liang Wong, Xu Yang, Pawan Kumar, Jin Da Tan, Anas Abutaha, Jayce JW Cheng, Yee‐Fun Lim, Siyu Isaac Parker Tian, Zekun Ren, Flore Mekki‐Berrada, Wai Kuan Wong, Jiaxun Xie, Jatin Kumar, Saif A Khan, Qianxao Li, Tonio Buonassisi, Kedar Hippalgaonkar, Multi‐Fidelity High‐Throughput Optimization of Electrical Conductivity in P3HT‐CNT Composites, Advanced Functional Materials, 2102606, 2021.
• Shaoyang Ma, Tao Ye, Tingting Wu, Zhe Wang, Zhixun Wang, Seeram Ramakrishna, Chellappan Vijila, Lei Wei, Hollow rice grain-shaped TiO2 nanostructures for high-efficiency and large-area perovskite solar cells, Solar Energy Materials and Solar Cells, 191, 389, 2019.
• Vijila Chellappan, Ai Lin Christina Pang, Soumya Sarkar, Zi En Ooi, Kuan Eng Johnson Goh, Effect of Phonons on Valley Depolarization in Monolayer WSe2, Electronic Materials Letters, 1-8, 2018.
• Milos Petrovic, Tao Ye, Vijila Chellappan, and Seeram Ramakrishna, Effect of Low Temperature on Charge Transport in Operational Planar and Mesoporous Perovskite Solar Cells, ACS: Appl. Mater. Interfaces, 9, 42769−42778, 2017.
• Miloš Petrovic´, Tao Ye, Chellappan Vijila, and Seeram Ramakrishna, Influence of Charge Transport and Defects on the Performance of Planar and Mesostructured Perovskite Solar Cells, Advanced Energy Materials, 7, 1602610, 2017.
• Tao Ye, Shaoyang Ma, Xi Jiang, Lei Wei, Chellappan Vijila, and Seeram Ramakrishna ,Performance Enhancement of Tri-Cation and Dual-Anion Mixed Perovskite Solar Cells by Au@SiO2 Nanoparticles, Advanced Functional Materials, 1606545, 2017.
• Tao Ye, Shaoyang Ma, Xi Jiang, Miloš Petrović, Chellappan Vijila, Seeram Ramakrishna and Lei Wei, Electrosprayed TiO2 nanoporous hemispheres for enhanced electron transport and device performance of formamidinium based perovskite solar cells, Nanoscale, 9, 412, 2017.
• Tao Ye, Jun Xing, Miloš Petrović, Shi Chen, Vijila Chellappan, Sandhya Subramanian, Tze Chien Sum, Bin Liu, Qihua Xiong, Seeram Ramakrishna, Temperature effect of the compact TiO2 layer in planar perovskite solar cells: An interfacial electrical, optical and carrier mobility study, Solar Energy Materials & Solar Cells 163, 242–249, 2017.
• Tao Ye, Miloš Petrović, Shengjie Peng, Jeremy Lee Kong Yoong, Chellappan Vijila, and Seeram Ramakrishna, Enhanced Charge Carrier Transport and Device Performance Through Dual-Cesium Doping in Mixed-Cation Perovskite Solar Cells with Near Unity Free Carrier Ratios, ACS Appl. Mater. Interfaces, 9, 2358−2368, 2017.