I worked in material processing, screening, device fabrication, characterization, device physics of organic, perovskite solar cells and light-emitting diodes. Additional experience in developing and implementing a comprehensive experimental system for the scale-up procedure of ultra-thin films opto-electronic devices and analysis of their morphological properties.

1. High performance air-processed organic photovoltaic modules (≈55 cm²) with an efficiency of >17.50% by employing halogen-free solvent processed polymer donors

   Thavamani Gokulnath, Hyerin Kim, Jieun Lee, Bo Hyeon Cho, Ho-Yeol Park, Jee Jesung, Young Yong Kim, Kakaraparthi Kranthiraja, Jinhwan Yoon, Sung-Ho Jin

   Adv. Energy Mater. 2302538 (2023)

2. A wide-bandgap π-conjugated polymer for high-performance ternary organic solar cells with an efficiency of 17.40%

   Thavamani Gokulnath, Jungmin Choi, Ho-Yeol Park, Kyungmin Sung, Yeongju Do, Hyungjin Park, Junyoung Kim, Saripally Sudhaker Reddy, Jehan Kim, Myungkwan Song, Jinhwan Yoon, Sung-Ho Jin

   Nano Energy 89 106323 (2021)

3. Accomplishing high-performance organic solar sub-modules (≈55 cm²) with >16% efficiency by controlling the aggregation of an engineered non-fullerene acceptor,

   Thavamani Gokulnath, Hyerin Kim, Kakaraparthi Kranthiraja, Bo Hyeon Cho, Ho-Yeol Park, Jesung Jee, Young Yong Kim, Jinhwan Yoon, and Sung-Ho Jin

   Adv. Sci. 2404997 (2024)

4. Highly efficient layer-by-layer deposition solar cells achieved with halogen-free solvents and molecular engineering of non-fullerene acceptors

   Thavamani Gokulnath, Rajalapati Durga Gayathri, Ho-Yeol Park, Jeonghyeon Kim, Hyerin Kim, Jehan Kim, Saripally Sudhaker Reddy, Jinhwan Yoon, Sung-Ho Jin

   Chemical Engineering Journal 448 13762 (2022)

5. Finely tuned molecular packing realized by a new rhodanine-based acceptor enabling excellent additive-free small- and large-area organic photovoltaic devices approaching 19 and 12.20% efficiencies

   Thavamani Gokulnath, Jeonghyeon Kim, Hyerin Kim, Jeonghyeon Park, Donghyun Song, Ho-Yeol Park, Raja Kumaresan, Young Yong Kim, Jinhwan Yoon, Sung-Ho Jin

   ACS Appl. Mater. Interfaces, 15, 19307–19318 (2023)

6. Nonhalogenated solvent‐processed thick‐film ternary nonfullerene organic solar cells with power conversion efficiency >13% enabled by a new wide‐bandgap polymer

   Thavamani Gokulnath, Saripally Sudhaker Reddy, Ho-Yeol Park, Junyoung Kim, Jehan Kim, Myungkwan Song, Jinhwan Yoon, Sung-Ho Jin

   Sol. RRL 2000787 (2021)

7. All-polymer solar cells approaching 12% efficiency with a new π-conjugated polymer donor enabled by a nonhalogenated solvent process

   Thavamani Gokulnath, Jungmin Choi, Hyunjung Jin, Ho-Yeol Park, Kyungmin Sung, Yeongju Do, Hyungjin Park, Saripally Sudhaker Reddy, Jehan Kim, Myungkwan Song, Jinhwan Yoon, Sung-Ho Jin

   ACS Appl. Mater. Interfaces 13, 28231−2824 (2021)

8. Facile strategy for third component optimization in wide-band-gap π-conjugated polymer donor-based efficient ternary all-polymer solar cells

   Thavamani Gokulnath, Kui Feng, Ho-Yeol Park, Yeongju Do, Hyungjin Park, Rajalapati Durga Gayathri, Saripally Sudhaker Reddy, Jehan Kim, Xugang Guo, Jinhwan Yoon, Sung-Ho Jin,

   ACS Appl. Mater. Interfaces 14, 11211−11221 (2022)

9. Thienothiophene‐assisted property optimization for dopant‐free π‐conjugation polymeric hole transport material achieving over 23% efficiency in perovskite solar cells

   Zhiqing Xie, Hyungjin Park, SeungJu Choi, Ho‐Yeol Park, Thavamani Gokulnath, Hyerin Kim, Jeonghyun Kim, Hak‐Beom Kim, In Woo Choi, Yimhyun Jo, Dong Suk Kim, Young‐Yong Kim, Seog Young Yoon, Jinhwan Yoon, Yong‐Rae Cho, Sung‐Ho Jin

   Adv. Energy Mater. 13, 2202680 (2023)

10. Perovskite solar cells approaching 25% using new side chain terminated hole transport materials with low concentration in non-halogenated solvent process
    Zhiqing Xie, Yeongju Do, Seung Ju Choi, Ho-Yeol Park, Hyerin Kim, Jeonghyeon Kim, Donghyun Song, Thavamani Gokulnath, Hak-Beom Kim, In Woo Choi, Yimhyun Jo, Dong Suk Kim, Seog-Young Yoon, Young-Rae Cho, Sung-Ho Jin
    
    
    J. Mater. Chem. A, 11, 9608-9615 (2023)

Ph.D., Chemical Materials, Pusan National University, South Korea, 2023

M.Sc., Physics, PSG CAS, Bharathiar University, India, 2017

Sep 2023-Aug 2024: Postdoctoral Researcher, Pusan National University, South Korea.

Mar 2018-Aug 2018: Researcher, Institute for Plastic Information and Energy Materials, Pusan National University, South Korea.

Korean Chemical Society (KCS)