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The use of sodium bismuthate will accelerate the development of electronics

21.01.2014

It has been ten years since the first samples of graphene were obtained. During this time, scientific journals and various thematic resources have been replenished with a huge number of articles and news regarding more and more new discoveries related to this amazing material. However, the first commercial use of graphene will be only this year with the start of sales of VLF (Very Large Format) batteries intended for the industrial sector and the automotive industry. When graphene will find a place in consumer electronics is not yet clear.

In the meantime, scientists at the Lawrence Berkeley National Laboratory (USA) have discovered that a material such as sodium bismuthate (NaBiO3) can be in a state in which it has properties similar to graphene, while being a three-dimensional structure (graphene is two-dimensional) called three-dimensional topological Dirac semi-metal (3DTDS).

An interesting fact is that this form of sodium bismuthate not only has many of the properties inherent in graphene, but also those that the "carbon film" does not have, while NaBiO3 is easier to manufacture. So in the future it can be used in consumer electronics instead of silicon to create a new generation of microprocessors. In addition, as in the case of graphene, sodium bismuthate can form the basis of quantum computers.

Of course, on the example of the same graphene, we see that many years can pass directly from discovery to introduction into production. Especially at the moment, scientists admit that the new form of sodium bismuthate is not very stable.

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The fact is that miniaturization in order to increase volumes while reducing cost leads to a deterioration in the technical characteristics of flash memory.

University experts base their assessment on a study of 45 different samples of flash memory from six manufacturers. They found that decreasing technology standards progressively increase delays, decrease throughput, and increase the chance of errors. Extrapolating the obtained results, the scientists came to the conclusion that at the turn of 6,5 nm, which is expected to be mastered in mass production in 2024, the indicators degrade to an unacceptably low level.

In other words, there is a contradiction between the need to increase storage density to increase storage capacity and reduce the cost of memory, and performance and reliability indicators. While SSD technology looks attractive at a certain point, the more manufacturers make progress in increasing the volume and lowering the cost of SSDs, the worse the devices themselves will become from the consumer's point of view.

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