Overcoming high resistance at metal electrode/ perovskite semiconductor interface for more reliable, faster, lower power devices

https://phys.org/news/2026-03-nanoscale-bottleneck-gen-electronics.html

"impurity doping to improve conductivity fails because perovskites chemically sensitive/ physically soft, overcome: placing metal electrode on perovskite surface using van der Waals method preventing physical damage, apply mild heat to silver which diffuses slightly into surface, UV converts silver into silver oxide nanoclusters acting as electron acceptors creating p-doped region at 25 (reduced from 250) nm interface... electrons pass via Fowler–Nordheim quantum tunneling, not thermionic emission"

Related: New microporous aerogel uses van der Waals forces for flexible, moldable shaping
https://phys.org/news/2026-04-microporous-aerogel-van-der-waals.html