Effect of oxide and interface traps on electrical characteristics of post-deposition annealed HfSiO4/n-Si structures
| dc.authorid | 0000-0002-1836-7033 | en_US |
| dc.authorid | 0000-0002-6652-4662 | en_US |
| dc.contributor.author | Kahraman, Ayşegül | |
| dc.contributor.author | Yılmaz, Ercan | |
| dc.date.accessioned | 2023-06-08T12:21:24Z | |
| dc.date.available | 2023-06-08T12:21:24Z | |
| dc.date.issued | 2021 | en_US |
| dc.department | BAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümü | en_US |
| dc.description | This work is supported by the Scientific and Technological Research Council of Turkey (TUBITAK) under ARDEB1001-Scientific and Technological Research Projects Support Program (Contract No. 117R054) and also supported in part by the Presidency of Turkey, Presidency of Strategy and Budget under Contract No. 2016K12-2834. | en_US |
| dc.description.abstract | This study presents detailed results on the modifications in chemical composition, defective bonds, crystal properties based on x-ray photoelectron spectroscopy (XPS) depth profiles and x-ray diffraction of post-deposition annealed HfSiO4/Si structure. It also leads to a link to defect centers and their effect on the electrical characteristics of MOS capacitors. The HfSiO4 films were deposited on n-Si wafers by RF magnetron sputtering and annealed at room temperature (RT), 300 degrees C, 700 degrees C, 900 degrees C, 1100 degrees C under N-2 ambient. That the atomic concentration values of each element in the oxide did not change significantly depending on the annealing temperature showed that the film was deposited with high homogeneity. It was determined that the shift direction of the binding energies of Hf 4f and O 1s XPS spectra were related to the bonding preference of oxygen rather than its concentration. The increase in Hf-M and Hf-Si oxygen defective bonds decreased the binding energy of the XPS spectra. It was determined from the XPS analyses of amorphous films that Hf-Si and Si-Si oxygen defective bonds may cause the positive charge trapping, resulting in the highest negative charge trapping/positive effective oxide charge density (Q(eff) ) in the 300 degrees C-MOS capacitor. It was determined that Hf-Hf oxygen defective bonds may be the precursors of negative charge trapping. Interface states only contributed to the dielectric constant (k) in the RT-MOS capacitor. The Phi(B) (barrier height) values showed that the efficiency of acceptor-like and donor-like interface states changes depending on the frequency. | en_US |
| dc.identifier.citation | Kahraman, A., & Yilmaz, E. (2021). Effect of oxide and interface traps on electrical characteristics of post-deposition annealed HfSiO4/n-Si structures. Semiconductor Science and Technology, 36(4), 045004. | en_US |
| dc.identifier.doi | 10.1088/1361-6641/abe31b | |
| dc.identifier.endpage | 12 | en_US |
| dc.identifier.issn | 0268-1242 | |
| dc.identifier.issn | 1361-6641 | |
| dc.identifier.issue | 4 | en_US |
| dc.identifier.scopus | 2-s2.0-85102115789 | en_US |
| dc.identifier.scopusquality | Q2 | en_US |
| dc.identifier.startpage | 1 | en_US |
| dc.identifier.uri | http://dx.doi.org/10.1088/1361-6641/abe31b | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12491/11085 | |
| dc.identifier.volume | 36 | en_US |
| dc.identifier.wos | WOS:000622305800001 | en_US |
| dc.identifier.wosquality | Q3 | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.institutionauthor | Yilmaz, Ercan | |
| dc.language.iso | en | en_US |
| dc.publisher | IOP PUBLISHING LTD | en_US |
| dc.relation.ispartof | Semiconductor Science and Technology | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| dc.relation.tubitak | Scientific and Technological Research Council of Turkey (TUBITAK) under ARDEB1001-Scientific and Technological Research Projects Support Program [117R054]; [2016K12-2834] | |
| dc.rights | info:eu-repo/semantics/closedAccess | en_US |
| dc.subject | HfSiO4 | en_US |
| dc.subject | XPS | en_US |
| dc.subject | Defect Centers | en_US |
| dc.subject | Bond | en_US |
| dc.subject | MOS | en_US |
| dc.subject | Annealing | en_US |
| dc.title | Effect of oxide and interface traps on electrical characteristics of post-deposition annealed HfSiO4/n-Si structures | en_US |
| dc.type | Article | en_US |
