The World population has crossed 7 billion and it is expected to rise by 11 billion by the time 2100’s arrive. If we want to survive on this planet, we have to introduce some technological reforms. Following, we are going to discuss 4 technologies that will define the future of electrical tech.
Radio Waves Recycling
Recently, there was an electromagnetic energy harvester developed which will collect ambient energy from radio frequency spectrum to operate deices for including of things including smart skin and city sensors with wearable tech.
This not a brand-new concept. It was tested before, but only to a short range. Recently a company developed a long-range energy harvester which can cover as long as seven miles from the respective source.
It harvests tens of microwatts from single UHF television channel. They have made some dramatic advantage to collect the energy from different TV channels, Wi-Fi stations and handheld devices. It allows the system to harvest power in milliwatts. Following are the biggest feats of this technology:
- Ultra-Wideband antennas to receive a variety of signals in different frequency range
- Distinctive charge pumps to optimize charging for arbitrary loads and ambient RF power level
- Antennas and circuitry will be made with 3-D inkjet printed paper so they are flexible as well as reliable
This technology shows that Green will not only be used as a sales pitch. Instead, most companies are making a considerable effort to do something for the environment. We are hopeful that this tech will help resolve 5G and its threat to wildlife. We are entering a new era, and these are the examples of tech that will define 2020’s in history.
New Generation of Betavoltaics
A new tech has been developed for photovoltaic devices. Instead of using photons from sun, it uses high energy electrons emitted from nuclear byproducts.
This tech has been around for decades but no one focused on tritium or nicket-63 and used them as beta emitters. The concept was to revisit technology from radiation transport perspective and use Strontium 90 it’s a prevalent isotope in nuclear waste.
The strontium-90 is unique as it only emits two high-energy electrons during decay. It also aligns with design architecture that is used with crystalline silicon solar cells. This can yield highly efficient conversion devices.
The lab tests with electron beam sources show this product has achieved power conversion efficiency of 4 to 18 percent. With continued improvements, its important the devices only generate one wall of power for the next 30 years. This will be 40,000 times more dense than current lithium ion batteries. The initial application includes military equipment as they need lower power energy over long intervals. This is important for powering up the device in a remote location where changing battery is next to impossible.
Solid State devices directly converts heat into electric bolts without moving nothing. These are made from inorganic semiconductors. Polymers make an attractive material thanks to low thermal conduction and flexibility.
These qualities allow for a clever design for such high-performance devices as they work without any active cooling, this will cut off the production costs. Moreover, researches have come up with a P and N type semiconducting polymer with high performing ZT values.
Thermoelectric are still restricted to its niche application, but they are able displace batteries in some cases. This is what makes polymer so attractive.
This also makes room in wearable tech including bot jewelry and clothing items. They can work like personal thermostat to send hot and cold pulse to the body. It will be completed with new inorganic thermoelectric but this technology leads to bulky ceramic shapes. Plastics and polymers are comfortable and stylish.
But they are not ideal for grid-scale application, but these devices will offer great savings.
Using paper to make energy created some buzz in the research marketplace. The organic electronic components use thin carbon-based semiconductor layers. These are around 1,000 times thinner than human hair.
Some companies have developed a paper based electronic with organic solar cells, and organic light emitting idiots as well as organic field effective transfer. These are fabricated on cellulose based substrates which are easy to recycle.
These prototypes are so thin that you are going to need atomically flat substrates where the surfaces goes down to a nanometer.
This solve this issue, the team uses cellulose nanocrystals, it’s a wooden wunderkind material which will be used to develop new semiconductors. It shows that pulp tch is a viable option to be used in place of plastic ones. It offers several environmental benefits.
Devices made from these substrates will be dissolved in water easily. This will allow the semiconducting material and metal layers to be filtered and recycled from time to time. The application these products serve depends on economics and performance of these subtracts.
future of electrical tech