% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Afanasev:834771, author = {Afanas'ev, V. V. and Schulte-Braucks, C. and Wirths, S. and Schubert, J. and Buca, D.}, title = {{O}xidation-induced electron barrier enhancement at interfaces of {G}e-based semiconductors ({G}e, {G}e$_{1−x}$ {S}n$_{x}$ , {S}i$_{y}$ {G}e$_{1−x-y}$ {S}n$_{x}$ ) with {A}l$_{2}$ {O}$_{3}$}, journal = {Microelectronic engineering}, volume = {178}, issn = {0167-9317}, address = {[S.l.]}, publisher = {Elsevier}, reportid = {FZJ-2017-04662}, pages = {141 - 144}, year = {2017}, abstract = {Experiments on internal photoemission of electrons at interfaces of SiyGe1−x−ySnx binary and ternary alloys (0≤ x ≤ 0.11; 0 ≤ y ≤ 0.19) with amorphous insulating Al2O3 reveal that the application of an additional oxidationstep (5 min in dry O3 at 300 °C) after atomic layer deposition of first ≈1 nm of alumina results in a significantincrease of the electron barrier height (by ≈0.4–0.5 eV) as compared to the conventionally grown Al2O3 layers.Furthermore, this supplemental oxidation step facilitates the removal of Ge sub-oxides from the interface. Theobserved electron barrier enhancement is suggested to be caused by formation of awide gap germanate interlayerbetween the Ge-based semiconductors and alumina. © 2017 Published by Elsevier B.V.}, cin = {PGI-9 / JARA-FIT}, ddc = {620}, cid = {I:(DE-Juel1)PGI-9-20110106 / $I:(DE-82)080009_20140620$}, pnm = {521 - Controlling Electron Charge-Based Phenomena (POF3-521)}, pid = {G:(DE-HGF)POF3-521}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000404703800033}, doi = {10.1016/j.mee.2017.05.011}, url = {https://juser.fz-juelich.de/record/834771}, }