Dr. Barkha Tyagi
- Position
- Postdoctoral Researcher
- tyagibarkha89@gmail.com
- ORCID
- https://orcid.org/0000-0001-5787-5316
Current Position
Postdoctoral Research Assistant
University of Oxford
https://www.physics.ox.ac.uk/our-people/tyagi
https://www.physics.ox.ac.uk/research/group/photovoltaic-and-optoelectronic-device-group
Research interest
Fabrication and Characterization of Organic Photovoltaic and Perovskite Solar Cells
Education
M.Sc. (Physics), Amity University, Noida, India 2017
Ph.D. (Flexible and Printable Electronics ), Jeonbuk National University, Korea, 2023
Ph.D. (Flexible and Printable Electronics ), Jeonbuk National University, Korea, 2023
Publications
(17) 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).
(16) 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 Method, 8, 2300237 (2024).
(15) 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)
(14) 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 press(2023.2).
(13) 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)
(12) 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)
(11) H.B. Lee, R. Sahani, V. Devaraj, N. Kumar, B. Tyagi, J.-W. Oh, J.-W. Kang* “Complex Additive-Assisted Crystal Growth and Phase Stabilization of α-FAPbI3 Film for Highly Efficient, Air-Stable Perovskite Photovoltaics” Adv. Mater. Interface 10, 2201658 (2023).
(10) B. Tyagi, N. Kumar, H.B. Lee, Y.M. Song, S. Cho, J. -S. Lee, J.-W. Kang* “Compact-Porous Hole-Transport-Layer for Highly Efficient Near-Infrared Region Transparent Perovskite Solar Cells for Tandem Applications” J. Alloys Compounds, 960, 170970 (2023) .
(9) 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).
(8) N. Kumar, H.B. Lee, R. Sahani, B. Tyagi, S. Cho, J.-S. Lee, J.-W. Kang* “Room-Temperature Spray Deposition of Large-area SnO2 Electron Transport Layer for High Performance, Stable FAPbI3-based Perovskite Solar Cells” Small Methods 6, 2101127 (2022).
(7) H.B. Lee, N. Kumar, V. Devaraj, K.-J. Ko, S. He, B. Tyagi, J.-W. Oh*, J.-W. Kang* “Trifluoromethyl-group bearing, hydrophobic bulky cations as defect passivators for highly efficient, stable perovskite solar cells” Solar RRL 5, 2000589 (2021).
(6) 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).
(5) H.B. Lee, N. Kumar, B. Tyagi, S. He, R. Sahani, J-W Kang* “Bulky Organic Cations Engineered Lead-halide Perovskites: A Review on Dimensionality and Optoelectronic Applications” Mat. Today Energy. 21, 100759 (2021).
(4) 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).
(3) H.B. Lee, N. Kumar, B. Tyagi and J.-W. Kang* “Dimensionality and defect engineering using fluoroaromatic cations for efficiency and stability enhancement in perovskite photovoltaics” RRL Solar 5, 2000589 (2021).
(2) B.Tyagi, H.B. Lee, N. Kumar, and J.-W. Kang* "Double-halide interfacial engineered perovskite solar cells demonstrating outstanding performance and stability" ACS Appl. Energy Mater 3, 8595 (2020).
(1) H.B. Lee, M.-K. Jeon, N. Kumar, B. Tyagi, and J.-W. Kang* "Boosting the efficiency of SnO2-triple cation perovskite system beyond 20% using non-halogenated antisolvent" Adv. Funct. Mater. 29, 1903213 (2019).
(16) 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 Method, 8, 2300237 (2024).
(15) 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)
(14) 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 press(2023.2).
(13) 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)
(12) 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)
(11) H.B. Lee, R. Sahani, V. Devaraj, N. Kumar, B. Tyagi, J.-W. Oh, J.-W. Kang* “Complex Additive-Assisted Crystal Growth and Phase Stabilization of α-FAPbI3 Film for Highly Efficient, Air-Stable Perovskite Photovoltaics” Adv. Mater. Interface 10, 2201658 (2023).
(10) B. Tyagi, N. Kumar, H.B. Lee, Y.M. Song, S. Cho, J. -S. Lee, J.-W. Kang* “Compact-Porous Hole-Transport-Layer for Highly Efficient Near-Infrared Region Transparent Perovskite Solar Cells for Tandem Applications” J. Alloys Compounds, 960, 170970 (2023) .
(9) 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).
(8) N. Kumar, H.B. Lee, R. Sahani, B. Tyagi, S. Cho, J.-S. Lee, J.-W. Kang* “Room-Temperature Spray Deposition of Large-area SnO2 Electron Transport Layer for High Performance, Stable FAPbI3-based Perovskite Solar Cells” Small Methods 6, 2101127 (2022).
(7) H.B. Lee, N. Kumar, V. Devaraj, K.-J. Ko, S. He, B. Tyagi, J.-W. Oh*, J.-W. Kang* “Trifluoromethyl-group bearing, hydrophobic bulky cations as defect passivators for highly efficient, stable perovskite solar cells” Solar RRL 5, 2000589 (2021).
(6) 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).
(5) H.B. Lee, N. Kumar, B. Tyagi, S. He, R. Sahani, J-W Kang* “Bulky Organic Cations Engineered Lead-halide Perovskites: A Review on Dimensionality and Optoelectronic Applications” Mat. Today Energy. 21, 100759 (2021).
(4) 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).
(3) H.B. Lee, N. Kumar, B. Tyagi and J.-W. Kang* “Dimensionality and defect engineering using fluoroaromatic cations for efficiency and stability enhancement in perovskite photovoltaics” RRL Solar 5, 2000589 (2021).
(2) B.Tyagi, H.B. Lee, N. Kumar, and J.-W. Kang* "Double-halide interfacial engineered perovskite solar cells demonstrating outstanding performance and stability" ACS Appl. Energy Mater 3, 8595 (2020).
(1) H.B. Lee, M.-K. Jeon, N. Kumar, B. Tyagi, and J.-W. Kang* "Boosting the efficiency of SnO2-triple cation perovskite system beyond 20% using non-halogenated antisolvent" Adv. Funct. Mater. 29, 1903213 (2019).