School of Metallurgy and Materials, 

College of Engineering and Physical Sciences 

Univerisity of Birmingham, 

Birmingham, 

United Kingdom

https://www.birmingham.ac.uk/schools/metallurgy-materials

Printed Transparent, Flexible All-Solid-State Supercapacitor

Ph.D (Engineering), Jeonbuk National University, Jeonju, 2021.

(15) K. Yadav, M. M. Ovhal, S. Parmar, N. Gaikwad, S. Datar, J.-W. Kang, and T. U. Patro* “ NiCo2O4 Nanoneedle-Coated 3D Reticulated Vitreous Porous Carbon Foam for High-Performance All-Solid-State Supercapacitors” ACS Appl. Nano Mater. 7, 2312–2324 (2024)

(14) M.M. Ovhal, H.B. Lee, N. Kumar, J.-W. Oh and J.-W. Kang* “ Filamentous Virus-Templated Nickel Hydroxide Nanoplates as Novel Electrochemical Pseudocapacitor Materials” Polymer Korea. 48, 234-241 (2024).

(13) M.M. Ovhal, H.B. Lee, V.V. Satale, B. Tyagi, N. Kumar, S. Chowdhury and J.-W. Kang* “One-meter-long, All-3D-printed Supercapacitor Fibers based on Structurally Engineered Electrode for Wearable Energy Storage” Adv. Energy Mater. 14, 2303053 (2024)

(12) V.V. Satale, N. Kumar, H.B. Lee, M.M. Ovhal, S. Chowdhury, B. Tyagi, A. Mohamed, and J.-W. Kang* "Spray-Assisted Deposition of SnO2 Electron Transport Bilayer for Efficient Inkjet-Printed Perovskite Solar Cells" Inorganic Chemistry Frontier. 10, 3558–3567 (2023)

(11) B. Tyagi, N. Kumar, H.B. Lee, M.M. Ovhal, V.V. Satale, A. Mohamed, D.-H. Kim and J.-W. Kang* “Development of high efficiency, spray-coated perovskite solar cells and modules using additive-engineered porous PbI2 films” Small Methode, In presss (2023.8).

(10) N. Kumar, H.B. Lee, B. Tyagi, M.M. Ovhal, S. Cho, J.-S. Lee, J.-W. Oh, J.-W. Kang* “Spray deposited, virus-templated SnO2 mesoporous electron transport layer boosting the performance of perovskite solar cells” Solar RRL, 7, 2300065 (2023)

(9) M.M. Ovhal, H.B. Lee, S. Boud, K.-J. Ko, W.-Y. Jin, N. Kumar, B. Tyagi, J.-W. Kang* “Flexible, stripe-patterned organic solar cells and modules based on multilayer-printed Ag fibers for smart textile applications” Materials Today Energy, 34, 101289 (2023)

(8) B. Tyagi, H.B. Lee, N. Kumar, W.-Y. Jin, K.-J. Ko, M.M. Ovhal, R. Sahani, H.-J. Jung, J. Seo, J.-W. Kang* “High-performance, large-area semitransparent and tandem perovskite solar cells featuring highly scalable a-ITO/Ag mesh 3D top electrodes” Nano Energy 95, 106978 (2022).

(7) M.M. Ovhal, N. Kumar, H.B. Lee, B. Tyagi, K.-J. Ko, S. Boud, J.-W. Kang* “Roll-to-Roll 3D-Printing of Flexible, Transparent, All-Solid-State Supercapacitor” Cell Reports Physical Science 2, 100562 (2021).

(6) W.-J. Jin, M.M. Ovhal, H.B. Lee, B. Tyagi and J.-W. Kang* “Scalable, All-Printed Photocapacitor Fibers and Modules based on Metal-Embedded Flexible Transparent Conductive Electrodes for Self-Charging Wearable Applications” Adv. Energy. Mater. 11, 2003509 (2021).

(5) M.M. Ovhal, N. Kumar, S. Lim,* J.-W. Kang* “Large-Area (64 cm2), Semi-transparent, Flexible All-Solid-State Supercapacitor using D-Bar Coating Process” Appl. Surf. Sci. 529, 147072 (2020)

(4) H.B. Lee, N. Kumar, M.M. Ovhal, Y.J. Kim, Y.M. Song and J.-W. Kang* "Dopant-free, amorphous-crystalline heterophase SnO2 electron transport bilayer enables >20% efficiency in triple-cation perovskite solar cells" Adv. Funct. Mater. 30, 2001559 (2020).

(3) M.M. Ovhal, N. Kumar, S.-K. Hong, H.-W. Lee*, and J.-W. Kang* "Asymmetric supercapacitor featuring carbon nanotubes and nickel hydroxide grown on carbon fabric: A synergistic study on self-discharging characteristic" J. Alloys Compd. 828, 154447 (2020).

(2) H.B. Lee, W.-Y. Jin, M.M. Ovhal, N. Kumar, J.-W. Kang* "Flexible transparent conducting electrodes based on metal mesh for organic optoelectronic device applications: A Review" J. Mater. Chem. C 7, pp.1087-1110 (2019).

(1) R.T. Ginting, M.M. Ovhal, J.-W. Kang*, "A novel design of hybrid transparent electrodes for high performance and ultra-flexible bifunctional electrochromic-supercapacitors" Nano Energy, 53, 650-657 (2018)