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Transcript

00:00I am in Delhi, Miranda House College, and I am a professor in the physics department in our research lab

00:10where we are working on material science related topics.

00:13One topic is the energy harvester.

00:17We are making such devices to waste energy to useful energy.

00:23The waste energy is a lot of waste energy,

00:27the temperature difference, mechanical energy that you are running,

00:32and the sea waves are moving.

00:36The waste energy is also waste.

00:40These energies can be used by different types of devices

00:46which can be used in energy harvester.

00:50We are working on these materials as energy harvester.

00:56We are making flexible energy harvester,

01:00which will be useful in our flexible electronics.

01:03We will be able to move to self-powered devices.

01:07You can know that petrol, diesel,

01:12all the energy sources are reduced.

01:16This is why we are keeping up the cost of energy.

01:19Our focus is on electrical vehicle.

01:24Now, in the energy harvester,

01:26we have seen solar cells.

01:30We collect energy harvester devices as well,

01:32as we can see smaller devices.

01:35And as such, small devices,

01:38We have to use a small device like a house.

01:40If we use a house, we need to use a cell.

01:44We need to charge the cell.

01:47We need to charge the energy harsester as a source.

01:53We need to charge the cell.

01:58We need to charge the cell.

02:01Basically, we are seeing that energy is very important.

02:06In our environment, there are so many energy available.

02:09The waste energy, such as heat, vibration, motion.

02:13So, we can convert those energy to the useful one by using different methods.

02:19If we walk, we can convert that energy to the electrical energy.

02:26That's why our effect is piezoelectric effect.

02:29The next one is the thermal energy, which is our heat.

02:33So, basically, we can convert the waste heat in useful energy.

02:37How is pyroelectric effect?

02:39So, there are many functional materials, which we can utilize for these energy harvesting purposes.

02:46So, basically, I am the PhD research scholar in the brand house, physics department.

02:51So, basically, different ways in which we want to convert waste energy to useful energy.

02:56Basically, solar energy, thermal energy.

02:59So, in solar energy, basically, we want to convert that energy to electrical energy.

03:04This is a silicon-based cell.

03:07So, we are working on other prototypes, like cadmium, telluride-based solar cells.

03:13So, we are working on second generation solar cells, which is a thin-film-based technology.

03:19So, we are working on third generation solar cells.

03:35So, we are working on third generation solar cells.

03:38So, basically, we are working on third generation solar cells.

03:41What will happen in the future?

03:43The most important thing is that the energy we supply,

03:46around 36-7% of the energy,

03:50will dissipate in the waste heat.

03:53So, there is a lot of energy that comes from factories,

03:56so we need to utilize that heat

03:58and use it in thermal energy.

04:00Because the solar energy is basically in the day,

04:02or in the night.

04:04But thermo-electric energy is every time available.

04:07So, this is a non-distrible source of energy.

04:10So, this is a non-distrible source of energy.

04:12So, this is a non-distrible source of energy.

04:14So, this is our focus on thermo-lactic energy,

04:16how to convert the waste energy to useful electrical energy.

04:18So, this is our room-temperature materials,

04:20we work on the materials,

04:21like Salenide and Indium Salenide-based materials.

04:23And this is our success,

04:25which is our CBEC coefficient.

04:27This is going to be.

ऊर्जा संकट का हल! मिरांडा हाउस कॉलेज की रिसर्च रोजमर्रा की वेस्ट एनर्जी को बनाएगी बिजली का स्रोत, जानिए कैसे

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