Tembani P.Thebe
Science and Technology reporter
www.zimgbcnews.co.zw
Scientists have made a significant breakthrough in electronics with the development of an optoexcitonic switch, a novel technology that could revolutionise classical and quantum computing devices.
This innovative switch operates at room temperature and has the potential to drastically reduce waste heat emissions a major obstacle in modern electronics.
The optoexcitonic switch uses neutral excitons, pairs of electrons and holes bound together instead of charged electrons to transfer information. Excitons are formed when an electron is excited from its atomic position leaving behind a positively charged hole that binds with the free electron. Since excitons have a neutral charge, they don’t produce heat when transferring information.
Overcoming Challenges
the team led by researchers from the University of Michigan successfully controlled excitons using photons, which are also neutrally charged. By carefully applying a specific number of photons they guided the excitons along a one dimensional ridge in a linear array. The critical breakthrough involved identifying a magical thickness for the material through which the excitons were guided.
“Our prediction was that if you grow them thick enough, the light coupling to excitons will be such that the push is going to be destroyed. And they could show it. So basically, it had to have a magical thickness” said Mackillo Kira, professor of electrical and computer engineering and co-director of the university’s Quantum Research Institute.
“Every time you store energy or you release that energy you heat it up. An exciton is a new charge neutral particle like a photon that doesn’t produce this heat” stated Parag Deotore, associate professor of electrical engineering, computer engineering and applied physics.
The optoexcitonic switch has far-reaching implications for various fields including:
Computing devices being potential to replace traditional electronics with more efficient and powerful computing devices.
Quantum Computing : could enable the development of quantum computers that operate at room temperature making them more accessible and scalable.
Energy Efficiency: could lead to significant reductions in energy consumption and heat generation in devices making them more environmentally friendly.
While the breakthrough is promising, further advancements are necessary to scale these switches into full-blown circuits. The researchers are optimistic that these challenges can be overcome within a matter of decades paving the way for a new generation of electronic devices that operate without waste heat generation.
Follow Zim GBC News on Social Media:
·X (Twitter): @ZimGbc ·Instagram: @ZimGBCNews
·TikTok: @ZimGBCNews_01 ·Facebook: Zim GBC News
·YouTube: Zim GBC News
Get real-time alerts on WhatsApp:
+263 773 820 323
For in-depth coverage, visit our website: www.zimgbcnews.co.zw
Zim GBC News | Global News From An African Perspective©2025