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Cooler computers, smartphones using graphene

Published

9 years ago

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London: Almost half of the total energy used in running a computer goes in cooling it down. That is going to change now.

Researchers at Chalmers University of Technology, Sweden, have developed a method for efficiently cooling electronics using graphene-based film.

Getting rid of excess heat in efficient ways is imperative to prolonging electronic lifespan, and would also lead to a considerable reduction in energy usage, experts said.

The film is attachable to electronic components made of silicon and has a thermal conductivity capacity that is four times that of copper.

A team led by professor Johan Liu from Chalmers University had earlier shown that graphene can have a cooling effect on silicon-based electronics, but the challenge was to stick a thick layer of graphene to silicon chips.

“We have solved this problem by creating strong covalent bonds between the graphene film and the surface, which is an electronic component made of silicon,” Liu said.

Moreover, functionalisation using this kind of bonding doubles the thermal conductivity of the graphene.

“Increased thermal capacity could lead to several new applications for graphene. One example is the integration of graphene-based film into microelectronic devices and systems, such as highly efficient Light Emitting Diode, lasers and radio frequency components for cooling purposes,” Liu said.

“Graphene-based film could also pave the way for faster, smaller, more energy efficient, sustainable high power electronics,” he said.

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Business

Apple is giving a huge discount on its gadgets: Details inside

Published

2 years ago

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May 5, 2022

By

If you want to buy an iPhone and were waiting for a nice offer, then we have a piece of good news for you! Amazon Summer Sale May 2022 has begun and they are offering major discounts on various smartphones, laptops, and smart TVs, among others.

The sale is live now on the e-commerce platform with no-cost EMI options and exchange discounts on various products. In addition to this, Amazon has also partnered with several banks including ICICI, Kotak Bank, and RBL so that customers get instant discounts of up to 10% using their cards and EMI transactions.

Customers can easily enjoy this summer sale and get massive discounts on iPhones. They can also compare prices on Flipkart Big Saving Days Sale 2022 before making a purchase.

 

Amazon Summer Sale May 2022: Discount offer on iPhone 13 

Apple’s coveted phone model iPhone 13 in the 128 GB storage model will be available during the Amazon Summer Sale May 2022 for Rs 64,900. The MRP of the phone is Rs 79,900. This means that the customers will be able to enjoy a discount of up to Rs 15,000 on the purchase of the iPhone 13.

If you have an old iPhone in working condition then you will also be eligible to receive another additional discount worth up to Rs 17,000 on the iPhone 13.

Buy at Rs. 64,900 (MRP – Rs. 79,900)

Features of Apple iPhone 13 

The iPhone is powered by an A15 Bionic processor with 6 core CPU. Apart from this, it has 16 core neural engines. With the iPhone 13, up to 512 GB of storage will be available. The iPhone 13 has a 6.1-inch Retina XDR display with 1000 nits brightness.

The iPhone 13 has a 12-megapixel dual rear camera setup. This time a new wide-angle camera has been given, whose aperture is f/1.6. With this, there is support for sensor optical stabilisation. Night mode has been made better than before. The second lens is also 12 megapixels ultra-wide and has an aperture of f/2.4.

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