Development of novel optical devices using diamond/graphene junctions

　・Photo-induced large conductivity change in diamond/graphene (C sp³-sp²) junctions
　We newly found large conductivity change of diamond/graphene
(C sp³-sp²) junctions by blue-light irradiation, and the conductivity
was maintained (memorized) without light irradiation after
the change（figure below）.
　We have been developing novel optoelectronic memory devices
using these special properties of graphene/diamond junctions.




　 （Ref.: K. Ueda et al. Appl. Phys. Lett. 108 (2016) 222102; Dia. Relat. Mater, 63 (2016) 148）

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