Publications

You can also find my articles on my Google Scholar profile. It is likely to be more up to date as the machine never sleeps.

Peer reviewed articles

1. A 7-eV bandgap semiconductor based on silicon-doped α-(Al$_x$Ga$_{1-x}$)$_2$O$_3$

Jacob Steele, Debaditya Bhattacharya, Kazuki Nomoto, Naomi A. Pieczulewski, Preston Sorensen, Viet-Anh Ha, Nick Pant, Ihit Shukla, Shaon Das, Ufuk Kilic, Madhav Ramesh, Feliciano Giustino, Baishakhi Mazumder, M. K. Indika Senevirathna, Michael D. Williams, Mathias Schubert, David A. Muller, Huili G. Xing, Debdeep Jena, and Darrell G. Schlom

Published in Nature, 2026

2. Large Barrier Height Ultrawide-Bandgap AlGaN Schottky Barrier Diodes

Madhav Ramesh, Shivali Agrawal, Debaditya Bhattacharya, Hsin-Wei S. Huang, Sheng-Jhe Shen, Vladimir Protasenko, Huili Grace Xing, and Debdeep Jena

Published in IEEE Transactions on Electron Devices, 2026

3. High current ultrawide bandgap AlGaN pin diodes with low on-resistance and UVC emission

Debaditya Bhattacharya, Shivali Agrawal, Hsin-Wei S. Huang, Madhav Ramesh, Vladimir Protasenko, Huili Grace Xing, and Debdeep Jena

Published in Journal of Applied Physics, 2026

4. Annealing reduces leakage current in MBE grown AlScN and AlYN films

Rishabh Singh, Debaditya Bhattacharya, Chandrashekhar Prakash Savant, Madhav Ramesh, Nikilesh Veeraraghavan, Thai-Son Nguyen, Huili Grace Xing, and Debdeep Jena

Published in Journal of Applied Physics, 2026

5. Second-order optical nonlinearity of AlScN films grown by molecular beam epitaxy

Joongwon Lee, Thai-Son Nguyen, Len van Deurzen, Debaditya Bhattacharya, Chandrashekhar Savant, Siddhartha Ghosh, Patrick Shea, Carl Bernard, Huili Grace Xing, Debdeep Jena, and Farhan Rana

Published in Journal of Physics D: Applied Physics, 2026

6. GaN lateral pn junctions by MBE in situ selective area sublimation and regrowth

Hardik Murarka, Jayeesh Arora, Madhav Ramesh, Thai-Son Nguyen, Debaditya Bhattacharya, Kathleen Smith, Chandrashekhar Savant, Jimy Encomendero, Vladimir Protasenko, Huili Grace Xing, and Debdeep Jena

Published in Journal of Vacuum Science \& Technology A, 2026

7. Molecular beam epitaxy of AlScN on Si(111)

R. Singh, N. Veeraraghavan, C. Savant, Debaditya Bhattacharya, W. Zhao, T. Nguyen, A. Ithepalli, P. Lonergan, H. G. Xing, and D. Jena

Published in Journal of Applied Physics, 2026

8. AlScN as an electron blocking layer in blue light emitting diodes: A first look

Pierce Lonergan, Madhav Ramesh, Shivali Agrawal, Debaditya Bhattacharya, Thai-Son Nguyen, Vladimir Protasenko, Henryk Turski, Huili Grace Xing, and Debdeep Jena

Published in Applied Physics Letters, 2026

9. Electrical analysis of 265 nm UV-C emitting AlGaN diode heterostructures grown by MBE on bulk AlN

Shivali Agrawal, Hsin-Wei S. Huang, Debaditya Bhattacharya, Madhav Ramesh, Krzesimir Nowakowski-Szkudlarek, Henryk Turski, Vladimir Protasenko, Huili Grace Xing, and Debdeep Jena

Published in AIP Advances, 2026

10. Dielectric assisted liftoff enabled simultaneous low n- and p- differential contact resistivities in ultrawide bandgap AlGaN pn diodes on bulk AlN

Debaditya Bhattacharya, Shivali Agrawal, Hsin-Wei S. Huang, Madhav Ramesh, Joseph E. Dill, Vladimir Protasenko, Huili Grace Xing, and Debdeep Jena

Published in Japanese Journal of Applied Physics, 2026

11. Low p-contact resistance InGaN-capped AlGaN-based DUV LEDs on bulk AlN substrates

Hsin-Wei S. Huang, Shivali Agrawal, Debaditya Bhattacharya, Vladimir Protasenko, Huili Grace Xing, and Debdeep Jena

Published in Applied Physics Letters, 2025

12. Growth of conductive Si-doped α-Ga$_2$O$_3$ by suboxide molecular-beam epitaxy

Jacob Steele, Julianne Chen, Tamá Burrell, Naomi A. Pieczulewski, Debaditya Bhattacharya, Kathleen Smith, Katie Gann, Michael O. Thompson, Huili G. Xing, Debdeep Jena, David A. Muller, Michael D. Williams, M. K. Indika Senevirathna, and Darrell G. Schlom

Published in APL Materials, 2025

13. The effect of boron incorporation on leakage and wake-up in ferroelectric Al$_{(1-x)}$Sc$_x$N

Maike Gremmel, Chandrashekhar Prakash Savant, Debaditya Bhattacharya, Georg Schönweger, Debdeep Jena, and Simon Fichtner

Published in Journal of Applied Physics, 2025

Preprints

1. Low Resistance Non-Alloyed Ohmic Contacts to High Al Composition n-type AlGaN

Joseph E. Dill, Xianzhi Wei, Changkai Yu, Akhansha Arvind, Shivali Agrawal, Debaditya Bhattacharya, Keisuke Shinohara, Debdeep Jena, and Huili Grace Xing

Published in , 2025

Conference Papers

1. Low Temperature Electroluminescence of AlGaN based UV Edge Emitting LEDs grown by MBE on Bulk AlN Substrates

Debaditya Bhattacharya, Shivali Agrawal, Hsin Wei Sheena Huang, Vladimir Protasenko, Krzesimir Szkudlarek, Henryk Turski, Huili Grace Xing, and Debdeep Jena

Published in 2025 Device Research Conference (DRC), 2025