Embedded Files
Publications
Publications
K. K. Sharma, D. Sharma, D. W. Bukhvalov, U. Khandelwal, P. Nukala, N. Bhat, and K. Ramesh, "Synthesis of Nanostructured Cubic Phase SnO2 Thin Film and Its Trace-Level Sensing of CO Gas," Nature Communications, In press. https://doi.org/10.21203/rs.3.rs-5478358/v1.
K. K. Sharma, A. Ujjwal, R. Saini, and K. Ramesh, "Enhanced Performance and Stability of Perovskite Solar Cells with Ag-Cu-Zn Alloy Electrodes," Energy Technology, 2025, e202501392. https://doi.org/10.1002/ente.202501392.
K. K. Sharma, R. Saini, and K. Ramesh, "(111) Facet-engineered SnO2 as an electron transport layer for efficient and stable triple-cation perovskite solar cells," Sustainable Energy Fuels, 2025, 9, 3102-3109. https://doi.org/10.1039/D5SE00339C.
A. Moudgil*, K. K. Sharma*, and S. Das, "In2O3/TiO2 Heterostructure for Highly Responsive Low-Noise Ultraviolet Photodetector," IEEE Transactions on Electron Devices, 2020, 67, 1, 166-172. https://doi.org/10.1109/TED.2019.2954344.
Oral and Poster Presentations
Oral and Poster Presentations
"A Highly Efficient Flexible Ultraviolet Photodetector based on TiO2 Nanostructured Thin Film" MRSI AGM 2019, IISc Bangalore.
"High Performance Metal-Semiconductor-Metal (MSM) Ultraviolet Photodetectors based on TiO2 Nanostructured Thin Films" Symposium on Wide Bandgap Semiconductors-2019, NIT Kurukshetra.
"High Performance Multilayer Ultraviolet Photodetector based on In2O3/TiO2 heterojunction on SiO2 Substrate" 3rd Departmental Symposium on Advances in Physics-2019, IIT Delhi.
Patent
Patent
K. K. Sharma, D. Sharma, and K. Ramesh, "Cubic Phase Tin(IV) Oxide for Trace Level Gas Sensing", IN Patent 552580, 18 Oct 2024.
Description: Disclosed herein is a novel carbon monoxide (CO) sensor leveraging the innovative use of cubic phase Tin(IV) oxide (SnO2) nanoparticles (NPs) in a thin film configuration deposited on a Silicon dioxide (SiO2) substrate. The sensor fabrication involves the preparation of a viscous gel using Tin(II) chloride dihydrate in 1-propanol, with subsequent deposition of the thin film on SiO2 substrate employing a spin coating method. Through meticulous annealing, the resulting thin film demonstrates exceptional long-term stability under ambient conditions. Notably, the fabricated sensor showcases outstanding sensing performance for CO gas at room temperature, achieving the lowest limit of detection (LLOD) of 1 ppb, and remarkably short response/recovery times of 8/10 minutes, respectively. This ground-breaking technology represents a significant advancement in real-time, high-precision CO gas sensing for diverse applications. A resistive gas sensor based on a cubic phase SnO2 demonstrates efficacy in real-time monitoring of trace carbon monoxide (CO) gas, thereby mitigating the risk of poisoning and fatal incidents associated with CO gas exposure.
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