Morning. It's noon. It's okay.Can you hear me. >> Okay. I think I have 18 minutes but maybe if I over speak maybe by few minutes pardon with me or you can give me the alarm.Uh I have been asked to deliver a talk on semiconductor and quantum. Now these two subject if I have to talk at any level I think it is not possible to cover even in a day actually people study for six semesters and still they are not there. Uh so my time will start after when I start my presentation.These are the I am this is a building ...

Renewable Energy & Technology Advancements - Conventional silicon solar panels have limited light-to-electricity conversion efficiency [1] - Innovations in materials are boosting the efficiency of light-powered cells [2] - Combining silicon with perovskite enhances solar panel performance by adjusting the absorption spectrum [4] - A company claims to be the first to commercially produce silicon-perovskite tandem cells [5] - Perovskite cells can produce 20% or more power compared to silicon cells [7] - Ultra-thin, flexible photovoltaics using perovskites have achieved record-high light-to-electricity conversions at laboratory scales [11] - Printed, silicone-free photovoltaic cells can convert indoor and outdoor light into electricity for small devices [13] Market & Economic Considerations - Tandem cells can cost 20-50% more than conventional silicon panels, but increased output can compensate for the higher price [7] - A company shipped commercial perovskite product to a utility in the US last year [8] - Perovskite technology is potentially more attractive for commercial industrial applications where space is limited [9] - The potential of 30% efficiency makes perovskite very attractive [10] - New technologies inspire confidence despite reduced clean energy subsidies and oversupply of silicon panels [17] - Two to four times more manufacturing capacity is needed to deliver the energy transition [17] Challenges & Future Outlook - Perovskite can be difficult to work with, containing toxic metals and being unstable to heat [6] - Degradation rates and cost of perovskite need to be monitored [10] - Perovskite has the potential to "heal itself," unlike silicon [12]