Publications

Akash Singh, Manoj K. Jana, David. B. Mitzi, “Organic-Inorganic Metal Halide Glass”, Patent Granted, US 17/333,862, 2023

Akash Singh, Trevor Timm, Mandar S. Bhoir, Brendan Gunning, Anamika s. Pratiyush, Madhana Sunder, Shivani Srivastava, Dan Mocuta, “Transistor Barrier Nitride Devices and Method” Patent Pending, US, Submitted, 2025

Akash Singh, Suraj Devnani, Vaishali Kushwaha, Shilpi Mishra, Akashdeep Gupta, K.K.S Pandian, “A Goggle: An auxiliary reading device for visually impaired –VISTA (Vision Imparting System using Technological Automation) Glass”, Patent Pending (Published), India 201721016562, 2017

Akash Singh, Durga P. Panda, Khandker A. Aabrar, Shivani Srivastava, Dan Mocuta; Methods and Structures for Enhanced Transistor Reliability, US Invention disclosure, submitted, 2026

Sudipto Saha, Penfie Nie, Jinhyung lee, Theodore Willams, Douglas Capson, Vince Choia, Akash Singh, “Hybrid CMP-Compaitable Wet Etch Process for Damage-Free Carrier Detachment in Advanced 3D-DRAM Integration” US Invention disclosure, submitted 2025

Sang Yi, Roda Nur, Shivani Srivastava, John Lyons, Ravindra Mehta, Chandra Tiwari, Akash Singh, “Bilayer flowable chemical vapor deposition fill for shallow trench isolation in transistors and Method”, US Invention disclosure, submitted, 2025

Yi Xie, Rayan Chakraborty, Akash Singh, Timothy M. McWhorter, AM Milinda Abeykoon, Daniel Olds, Volker Blum, David B. Mitzi, “Melting Point Depression and Glass-Forming Abilities in Pb- and Sn-Based Hybrid Perovskites with a Nonprimary Ammonium Cation” Chemistry of Materials, 2026, 38, 19, 9916-9928 

Akash Singh and David B. Mitzi, “Emergence of Melt and Glass states of Halide Perovskite Semiconductors” Nature Review Materials, 2025, 10, 211–227

Garrett McKeown Wessler, Tianlin Wang, Yi Yao, Akash Singh, Volker Blum, David Mitzi, “Hydrothermal synthesis, electronic and optical characterization of Ag2NH4AsS4” Inorganic Chemistry, 2026, 65, 9, 4901-4912

Akash Singh, Trevor Timm, Madhana Sunder, Kari Noehring, James Barnard, Elaine Gabriel, Lane Cunnigham, Mandar S. Bhoir, Anamika S. Pratiyush, Durga Panda, Brendan Gunning, Shivani Srivastava, Dan Mocuta, “Densified peripheral SiN liner for Vt-W mitigation in ultra-low diffusion time CMOS process flow” Micron-TLP Journal, 2025, 16, 3, 314-319

Akash Singh, Damara Dayton, Dylan M. Ladd, Guy Reuveni, Piotr Paluch, Lionel Montagne, Julian Mars, Omer Yaffe, Michael Toney, G. N. Manjunatha Reddy, David B. Mitzi “Local Structure in the Crystalline, Melt, and Glassy State of a Metal Halide Perovskite” Journal of  American Chemical Society, 2024, 146, 37, 25656–25668

Akash Singh, Yi Xie, Curtis Adams III, Benjamin Bobay, David B. Mitzi, “Controlling Glass Forming Kinetics in 2D Perovskites Using Organic Cation Isomers” Chemical Science, 2024, 15, 6432-6444

Ethan J. Crace, Akash Singh, Stella Haley, Bethany Claes, David B. Mitzi, “Meltable Hybrid Antimony and Bismuth Iodide 1D Perovskites” ACS Inorganic Chemistry, 2023, 62, 39, 16161–16169

Akash Singh, Yongshin Kim, Reece Henry, Harald Ade, David B. Mitzi, “Study of glass formation and crystallization kinetics in a 2D metal halide perovskite using ultrafast calorimetry” Journal of American Chemical Society, 2023, 145, 33, 18623–18633

Akash Singh, Ethan Crace, Yi Xie, David B. Mitzi, “A two-dimensional lead-free hybrid perovskite semiconductor with reduced melting temperature” Chemical Communication, 2023, 59, 8302-8305

S. K. Podapangi, Farshad Jafarzadeh, Tulja bhavani, Sara Mattiello, Akash Singh, Luca Beverina, Thomas Brown, “Green solvents, materials, and lead-free semiconductors for sustainable fabrication of perovskite solar cells” RSC Advances, 2023, 13, 18165-18206

Akash Singh, David B. Mitzi, “Crystallization kinetics in a glass-forming hybrid metal halide perovskite” ACS Materials Letters 2022, 4 ,9, 1840-1847

Yi Xie, Ruyi Song, Akash Singh, Manoj Jana, Volker Blum, David B. Mitzi, “Kinetically Controlled Structural Transitions in Layered Halide-Based Perovskites: An Approach to Modulate Spin Splitting” Journal of the American Chemical Society 2022, 144, 33, 15223-15235

Akash Singh, Manoj K. Jana, David B. Mitzi, “Reversible Crystal–Glass Transition in a Metal Halide Perovskite” Advanced Materials 2021, 33, 3, 2005868

Akash Singh, Arun S. Chouhan, Sushobhan Avasthi, “Effect of methylamine vapor exposure and ambient ageing on CsxMA1−xPbI3−xBrx perovskites for improved carrier collection” Materials Research Express 2019, 6, 8, 085519

Ashish Shukla, Akash Singh, Md. Motin Seikh and Asish K Kundu, “Low temperature Magneto-dielectric coupling in nanoscale layered SmFe0.5Co0.5O3 perovskite”. Journal of Physics and Chemistry of Solids 2019, 127 , 164-168

Akash Singh, S. K. Podapangi, Sushobhan Avasthi, “Cation Exchange Assisted Dimensional Down-conversion of Perovskite Thin Films using Vapour Annealing: An Interplay of Tolerance Factor”, Journal of Integrated Ferroelectrics, 2018, 194, 1 ,107-114

Akash Singh, Sushobhan Avasthi, “Vapor induced Recrystallization of Methylammonium Tin Iodide Perovskite for Enhanced Stability”. IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC), (2018): 0518-0521, https://doi.org/10.1109/PVSC.2018.8547989

Akash Singh, Suraj Devnani, Vaishali Kushwaha, Shilpi Mishra, Akashdeep Gupta, K.K.S. Pandian, “An Efficient Auxiliary Reading Device for Visually Impaired” IEEE International Conference on Smart City and Emerging Technology (ICSCET, (2018): 1-5, https://doi.org/10.1109/ICSCET.2018.8537329

Akash Singh, Arun S. Chouhan, Sushobhan Avasthi, “Methylamine Vapor Exposure for Improved Morphology and Stability of Cesium-methylammonium Lead Halide Perovskite Thin-Films”, The Physics of Semiconductor Devices. IWPSD 2017. Springer Proceedings in Physics, vol 215. Springer, Cham. https://doi.org/10.1007/978-3-319-97604-4_60, (2017): 391-398

Akash Singh, Sushobhan Avasthi “Recrystallization of Pure and Binary MASnxPb1-xI3 Perovskite films from their Methylamine Complex for enhanced stability” (Under preparation) 

Sang Yi, Roda Nur, Shivani Srivastava, Chandra Tiwari, Akash Singh; Reliability and Performance gain in bilayer Flowable CVD based shallow trench isolation gap fills for sub-word line driver transistors, Micron-TLP Journal 2026, Under review

Akash Singh, Yun-Yu Wang, Kenton Burns, Shivani Srivastava, Dan Mocuta; Physical origin of the Vt-W anomaly in high-K metal gate transistors, Micron-TLP Journal 2026, Under preparation

Akash Singh, Yi Xie, Curtis Adams III, David B. Mitzi, “Enhancing Crysatllization Kinetics in Glass-Forming Halide Perovskite using Organic Cation Isomers” (Oral presentation at  MRS Spring Meeting & Exhibit, Seattle, 2024)

Akash Singh, Yongshin Kim, Reece Henry, Harald Ade, David B. Mitzi, “Glass formation in Metal Halide Perovskite using Ultrafast Calorimetry” (Oral presentation at  MRS Fall Meeting & Exhibit, Boston, 2023)

Akash Singh, Ethan Crace, Yi Xie, David B. Mitzi, “Reduced Melting Temperature of Lead-Free 2D Perovskite Semiconductor to 142 °C” (Oral presentation at  MRS Fall Meeting & Exhibit, Boston, 2023)

Damara Dayton, Julian Mars, Michael Toney, David Mitzi, Akash Singh, “Local Structure of Metal Halide Perovskite Glassy-Crystalline Phase Switching” (Oral presentation at MRS Spring Meeting & Exhibit, San Francisco, 2023)

Akash Singh, David B. Mitzi, “Glass-Crystal transformation kinetics in a hybrid metal halide perovskite” (Poster presentation at MRS Fall Meeting & Exhibit, Boston, 2022 and at Symposium on Sustainable Energy Solutions for Climate Change, Durham 2023)

Yi Xie, Ruyi Song, Akash Singh, Manoj Jana, Volker Blum, David B. Mitzi, “Kinetically Controlled Structural Transitions in Layered Halide-Based Perovskites: An Approach to Modulate Spin Splitting” (Poster presentation at Gordon Research Conference, Ventura, 2022)

Damara Dayton, Akash Singh, Julian Mars, David B. Mitzi, Michael Toney, “Metal Halide Perovskite Reversible Glass transition” (Poster presentation at MRS Spring Meeting & Exhibit, Hawaii, 2022)

Akash Singh, Manoj K. Jana, David B. Mitzi, “Glass formation in metal halide perovskites” (Oral presentation at MRS Spring Meeting & Exhibit, Virtual, 2021)

Akash Singh, Sushobhan Avasthi, “Recrystallization of Pure and Binary MASnxPb1-xI3 Perovskites from their Methylamine Complex” (Poster presentation at MRS Fall Meeting & Exhibit, Boston 2019)

Akash Singh, “Perovskite reinforced glass for self-sustainable photovoltaic green buildings” (Poster presentation at Duke University Energy Conference, Nov 2019)

S. K. Podapangi, V. Prashanti, Akash Singh, Sushobhan Avasthi, “Spray-Coated Planar Perovskite Solar Cells Processed in Ambient on NiOx Substrates: An Optimization Voyage from Thin-films to Devices” (Poster presentation at 10th International Conference on Materials for Advanced Technologies (ICMAT), Singapore, 2019)

S. K. Podapangi, V. Prashanti, Akash Singh, Sushobhan Avasthi, “An Endeavor Towards Process Optimization of Spray-coated Perovskite Solar Cells in Ambient” (Poster presentation at International Workshop and Conference on Perovskite & Hybrid Photovoltaics (ICPHPV-2019), New Delhi, India)

Akash Singh, Arun Singh Chouhan, Sushobhan Avasthi, “Highly Crystalline Methylammonium Tin Iodide Perovskite Films using Post-deposition Methylamine Vapor Annealing for Improved Grain Size”, (Oral presentation at MRS Spring Meet, Phoenix, 2018)

Akash Singh, Arun Singh Chouhan, Sushobhan Avasthi, “Interaction of Humidity and Polar Molecules with Mixed Cation Perovskite for High Efficiency Solar Cells: Materials and Device Study” (Oral presentation at 17th International Conference on Thin Films, November 2017, New Delhi, India)

Saloni Chaurasia, Akash Singh, Srinivasan Raghavan, Sushobhan Avasthi, “High Quality Epitaxial Germanium on Si (111) using two step annealing” (Oral presentation at 17th International Conference on Thin Films, November 2017, New Delhi, India)

Akash Singh, “From Crystal to Glass: New Pathways in Perovskite Semiconductors” (Oklahoma State University, Nov 2025)

Akash Singh, “Glass formation in Metal Halide Perovskite using Ultrafast Calorimetry” (Carolina Science Symposium, Nov 2023)

Akash Singh, “Applications of Perovskites: Solar Cells & Beyond” (111th Episode, It's a Materials World Podcast, July 2023)

Akash Singh, “Exploring Strategies to Reduce the Melting Point of Metal Halide Perovskites” (MRSX Talks, April 2023)

Akash Singh, “Reversible crystal-glass switching and underlying transformation kinetics in hybrid perovskites” (Fitzpatrick Institute of Photonics Seminar series at Duke, Mar 2023)

Akash Singh, “Vitrified metal halide perovskite glass” (Carolina Science Symposium, Nov 2022)

Akash Singh, “Glass formation in metal halide perovskites” (Duke’s Mechanical Engineering and Materials Science, Graduate Student Seminar, Nov 2022)

Akash Singh, “Perovskite: A two century tale of a mineral” (Triangle Electrochemical Society, summer seminar series, July 2022)

Akash Singh, “How an engineered phase of a synthetic mineral could broaden up its application space?”
(10th annual Duke GradX, April 2022)

Akash Singh, “Inducing glass formation in metal-halide perovskites” (Student Research Seminar organized by Duke Optical Student Chapter (DOSC), Materials Research Society@Duke (MRS@Duke), and Duke Materials Initiative (DMI), April 2022)

Akash Singh, “Recrystallization of pure and binary MASnxPb1-xI3 perovskite films from their methylamine complex” (Duke Energy Initiative Student Seminar, Sept 2019)