Mahesh Kumar

Abstract:

The energy crisis is a broad and complex topic. Most people do not feel connected to its reality unless the price of gas goes up. The energy crisis is something that is on-going and getting worse, despite many efforts. Due to the increase in demand for energy over the past few decades, the resources required to meet these demands are being drastically depleted. There have been several developments in the field of energy conservation. The greenhouse effect is another major issue and accounts for global climate change. Carbon dioxide is one of the chief greens house gases responsible and it is prompted, not only uses the green energy sources but also reduce the power consumption. My scientific focus is on development of energy efficient devices such as LEDs and sensors for environmental gas monitoring. Hydrogen gas sensors are important for utilization of hydrogen as a clean and renewable alternative to carbon-based fuels. Though, there is broad range of hydrogen sensors designed on the basis of optical and electrical properties of materials, but these sensors are either working at very high temperature (> 150 °C) or incompatible with integrated circuits for sensing device fabrication and reproduction. The sensor reported in present study, can able to detect hydrogen gas at lower temperature with fast response and recovery times and can be integrated with existing Si based technology. The lower working temperature is necessary for power saving and reduction of risk associated with H2 gas. The talk will focus on issues related to energy and climate.