IISc develops innovative single photon emitters with partners

Researchers from the Indian Institute of Science (IISc) in Bengaluru, alongside international partners, have made a breakthrough in creating single photon emitters (SPEs). These emitters are generated in a single layer of 2D semiconducting molybdenum disulphide. Using ultra low-energy electron beam irradiation, the team was able to produce stable SPEs with high spatial precision. This advancement could deepen our understanding of fundamental physics related to defect coupling and electron interactions. In another development, a team led by the Berkeley Lab in the United States has identified a new molecule called berkelocene. This is significant because it is the first organometallic molecule to feature berkelium, a heavy actinide element. Previous work mainly focused on earlier actinides like uranium. Scientist Stefan Minasian noted that this discovery sheds light on the chemical behavior of berkelium in comparison to other elements in the periodic table. Additionally, scientists have created a new hybrid material that mimics biological synapses, which aid in nerve signal transmission. This innovation could enhance artificial intelligence (AI) systems. The research, conducted by teams from SN Bose National Centre and other institutions, led to the creation of AgCN. This material combines carbon nitride with silver nanoparticles, allowing it to change resistance gradually. This feature is crucial for neuromorphic computing, which allows AI to learn and adapt like the human brain. The AgCN devices can replicate simple tasks like Morse code and show associative learning similar to Pavlov's dog experiment. By adjusting metallic pathways under an electric field, these devices can efficiently handle information. This research promises to lead to more advanced AI applications, including improved image recognition and quick decision-making. The researchers emphasized the potential of biomimicry in creating smarter, energy-efficient computing systems.