Tip-enhanced spectroscopy contributes to making 'transformer' semiconductor particles

https://phys.org/news/2023-04-tip-enhanced-spectroscopy-contributes-semiconductor-particles.html

"Stacking single layer dichalcogenide transforms into 2D semiconductors... interlayer excitons and interlayer trions formed at TMD heterobilayers using spectroscopy at 20nm... photoluminescence interlayer excitons electrically neutral quasiparticles use less heat being part light and part matter... also light source for quantum information technologies due to longer coherence time... 9,000X excitons' luminous efficiency... quasiparticle conversion between interlayer excitons and interlayer trions"

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https://phys.org/news/2024-03-spectroscopy-theory-excitons-semiconductors.html