Ionic liquid/ZnO(0001̄) single crystal and epitaxial film interfaces studied through a combination of electrochemical measurements and a pulsed laser deposition process under vacuum

Abstract

O-Polar ZnO(0001̄) single crystals and ZnO and Mg-doped ZnO films which were subsequently deposited on the ZnO crystals by pulsed laser deposition were electrochemically investigated through the interfaces with ionic liquids in a vacuum.

Impact of band-gap graded structures artificially implemented in Mg–ZnO epitaxial films on photoelectrochemical properties

“…In fact, there have been some reports on similar results of the flat band potential difference between ZnO and Mg:ZnO experimentally smaller than expected from the band gap increase in Mg:ZnO. 30,31…”

“…In fact, there have been some reports on similar results of the flat band potential difference between ZnO and Mg:ZnO experimentally smaller than expected from the band gap increase in Mg:ZnO. 30,31 Fig. 4(a) and (b) are a set of dark-and photo-CV curves for each of the up-(a) and down-(b) graded Mg-ZnO films.…”

Recent Progress in Vacuum Engineering of Ionic Liquids

“…We believe that not all, but some readers have become interested in the state-of-the-art of vacuum engineering of ILs. On the other hand, it is unfortunate that this review could not include any research topics on vacuum electrochemistry with IL, where vacuum-available IL as an electrolyte allows one to carry out all-in-vacuum electrochemical processes [ 71 , 72 , 73 ]. One of the reasons why there is still little interest in the vacuum applications of IL, we guess, consists in the difficulty in handling the IL in a vacuum because of their fluid nature.…”