%0 Journal Article %1 WOS:000238314800056 %A Pereira, T A S %A Freire, J A K %A Freire, V N %A Farias, G A %A Scolfaro, L M R %A Leite, J R %A da Silva Jr., E F %C 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA %D 2006 %I AMER INST PHYSICS %J APPLIED PHYSICS LETTERS %K imported %N 24 %R 10.1063/1.2212279 %T Large image potential effects in Si/SrTiO3 and Si/HfO2 two-dimensional quantum well structures %V 88 %X Charge image effects on the confinement properties of Si/SrTiO3 and Si/HfO2 two-dimensional quantum wells are studied. The combination of strong dielectric mismatch and band offset of the layers gives rise to structured confinement potentials, which can trap carriers close to the interfaces in Si/SrTiO3 but not in Si/HfO2 two-dimensional quantum wells. The charge image blueshifts strongly (a few hundred meV) the carrier recombination energy, comparable to the shift related to the well width shortening due to actual graded interfaces. (c) 2006 American Institute of Physics.

@article{WOS:000238314800056, abstract = {Charge image effects on the confinement properties of Si/SrTiO3 and Si/HfO2 two-dimensional quantum wells are studied. The combination of strong dielectric mismatch and band offset of the layers gives rise to structured confinement potentials, which can trap carriers close to the interfaces in Si/SrTiO3 but not in Si/HfO2 two-dimensional quantum wells. The charge image blueshifts strongly (a few hundred meV) the carrier recombination energy, comparable to the shift related to the well width shortening due to actual graded interfaces. (c) 2006 American Institute of Physics.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA}, author = {Pereira, T A S and Freire, J A K and Freire, V N and Farias, G A and Scolfaro, L M R and Leite, J R and da Silva Jr., E F}, biburl = {https://www.bibsonomy.org/bibtex/213667a82002cd06cf258abaee7b78096/ppgfis_ufc_br}, doi = {10.1063/1.2212279}, interhash = {754a26ff45fe7a7b5a03200f4e6db04e}, intrahash = {13667a82002cd06cf258abaee7b78096}, issn = {0003-6951}, journal = {APPLIED PHYSICS LETTERS}, keywords = {imported}, number = 24, publisher = {AMER INST PHYSICS}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Large image potential effects in Si/SrTiO3 and Si/HfO2 two-dimensional quantum well structures}, tppubtype = {article}, volume = 88, year = 2006 }