Core-Shell Nanorods for Efficient Photoelectrochemical Hydrogen Production

摘要

We propose core-shell InP-CdS and InP-ZnTe nanorods as photoelectrodes in the efficient photoelectro-chemical hydrogen production.On the basis of our systematic study using strain-dependent k.p theory,we find that in these heterostructures both energies and wave function distributions of electrons and holes can be favorably tailored to a considerable extent by exploiting the interplay between quantum confinement and strain.Consequently,these core-shell nanorods with proper dimensions(height,core radius,and shell thickness)can simultaneously satisfy all criteria for effective photoelectrodes in solar-based hydrogen production.