Photoinduced modification of surface states in nanoporous InP

Porous honeycombs of n-type InP were investigated by terahertz time-domain and x-ray photoemission spectroscopies. After photoexcitation the dark conductivity was found to increase quasi-irreversibly, recovering only after several hours in air. The calculated electron density for different surface p...

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Bibliografiske detaljer
Main Authors: Lloyd-Hughes, J, Mueller, S, Scalari, G, Bishop, H, Crossley, A, Enachi, M, Sirbu, L, Tiginyanu, I
Format: Journal article
Sprog:English
Udgivet: 2012
Beskrivelse
Summary:Porous honeycombs of n-type InP were investigated by terahertz time-domain and x-ray photoemission spectroscopies. After photoexcitation the dark conductivity was found to increase quasi-irreversibly, recovering only after several hours in air. The calculated electron density for different surface pinning energies suggests that photoexcitation may reduce the density of surface states. © 2012 American Institute of Physics.