C. Maccato, Lorenzo Bigiani, D. Barreca, A. Gasparotto
{"title":"Fe2O3-WO3 and Fe2O3-CuO nanoheterostructures by XPS","authors":"C. Maccato, Lorenzo Bigiani, D. Barreca, A. Gasparotto","doi":"10.1116/6.0001252","DOIUrl":"https://doi.org/10.1116/6.0001252","url":null,"abstract":"","PeriodicalId":22006,"journal":{"name":"Surface Science Spectra","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45723476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Maccato, Lorenzo Bigiani, M. Klotzsche, D. Barreca, A. Gasparotto
In this work, x-ray photoelectron spectroscopy was employed to characterize the surface composition and elemental chemical states of supported Co3O4-SnO2 and Co3O4-Fe2O3 nanocomposites. The present materials were prepared on Si(100) substrates by the chemical vapor deposition of cobalt oxide under O2 + H2O atmospheres, followed by the tailored introduction of SnO2 or Fe2O3 by means of radio frequency-sputtering. Material structural and morphological characterization revealed the formation of nanocomposite heterostructures involving a conformal Co3O4 coverage by SnO2 or Fe2O3 overlayers. Survey spectra as well as detailed scans of C 1s, O 1s, Co 2p, Sn 3d, and Fe 2p regions are presented and critically discussed. The results provide evidence for the formation of pure and oxygen-deficient nanocomposites, and the occurrence of an electronic interplay between the single oxide constituents.
本文采用x射线光电子能谱对负载型Co3O4-SnO2和Co3O4-Fe2O3纳米复合材料的表面组成和元素化学状态进行了表征。该材料是在Si(100)衬底上，通过在O2 + H2O气氛下化学气相沉积氧化钴，然后通过射频溅射定向引入SnO2或Fe2O3制备的。材料结构和形态表征表明，形成了由SnO2或Fe2O3覆盖的Co3O4共形纳米复合异质结构。测量光谱以及详细扫描的c1s, O 1s, Co 2p, Sn 3d，和Fe 2p区域提出和批判性地讨论。该结果为纯和缺氧纳米复合材料的形成以及单一氧化物组分之间电子相互作用的发生提供了证据。
{"title":"Analysis of Co3O4-SnO2 and Co3O4-Fe2O3 nanosystems by x-ray photoelectron spectroscopy","authors":"C. Maccato, Lorenzo Bigiani, M. Klotzsche, D. Barreca, A. Gasparotto","doi":"10.1116/6.0001146","DOIUrl":"https://doi.org/10.1116/6.0001146","url":null,"abstract":"In this work, x-ray photoelectron spectroscopy was employed to characterize the surface composition and elemental chemical states of supported Co3O4-SnO2 and Co3O4-Fe2O3 nanocomposites. The present materials were prepared on Si(100) substrates by the chemical vapor deposition of cobalt oxide under O2 + H2O atmospheres, followed by the tailored introduction of SnO2 or Fe2O3 by means of radio frequency-sputtering. Material structural and morphological characterization revealed the formation of nanocomposite heterostructures involving a conformal Co3O4 coverage by SnO2 or Fe2O3 overlayers. Survey spectra as well as detailed scans of C 1s, O 1s, Co 2p, Sn 3d, and Fe 2p regions are presented and critically discussed. The results provide evidence for the formation of pure and oxygen-deficient nanocomposites, and the occurrence of an electronic interplay between the single oxide constituents.","PeriodicalId":22006,"journal":{"name":"Surface Science Spectra","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45416044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Two different phases of the transition-metal dichalcogenide and molybdenum ditelluride (1T′-MoTe2 and 2H-MoTe2) were grown by chemical vapor transport. Oxygen-free surfaces were generated by exfoliation in air and then analyzed by x-ray photoelectron spectroscopy. High-resolution core and valence and Auger spectra were acquired for both materials including Te 3d, Te 4d, Te MNN, Mo 3d, and valence band spectra. Differences in Te 3d and Mo 3d peak positions that were previously reported were confirmed, and asymmetry on the metallic 1T′-phase was documented in the Te 3d, Te 4d, and Mo 3d spectra that could prove useful in identifying mixtures of these materials.
{"title":"1T′-MoTe2 and 2H-MoTe2 by XPS","authors":"J. Shallenberger, Rebecca J. Katz, Z. Mao","doi":"10.1116/6.0001100","DOIUrl":"https://doi.org/10.1116/6.0001100","url":null,"abstract":"Two different phases of the transition-metal dichalcogenide and molybdenum ditelluride (1T′-MoTe2 and 2H-MoTe2) were grown by chemical vapor transport. Oxygen-free surfaces were generated by exfoliation in air and then analyzed by x-ray photoelectron spectroscopy. High-resolution core and valence and Auger spectra were acquired for both materials including Te 3d, Te 4d, Te MNN, Mo 3d, and valence band spectra. Differences in Te 3d and Mo 3d peak positions that were previously reported were confirmed, and asymmetry on the metallic 1T′-phase was documented in the Te 3d, Te 4d, and Mo 3d spectra that could prove useful in identifying mixtures of these materials.","PeriodicalId":22006,"journal":{"name":"Surface Science Spectra","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45104176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Christopher R. O’Connor, J. Boscoboinik, Mustafa Karatok, M. V. van Spronsen
In this article, we show the survey and H 1s spectra acquired with a photon energy of 400.02 eV and H2(g) electron-energy loss of Ag 3d5/2 spectra with a photon energy of 451.3 eV using high-resolution synchrotron-radiation NAP-XPS.
{"title":"Hydrogen, H2(g), by near-ambient-pressure soft x-ray synchrotron-radiation photoelectron spectroscopy","authors":"Christopher R. O’Connor, J. Boscoboinik, Mustafa Karatok, M. V. van Spronsen","doi":"10.1116/6.0001066","DOIUrl":"https://doi.org/10.1116/6.0001066","url":null,"abstract":"In this article, we show the survey and H 1s spectra acquired with a photon energy of 400.02 eV and H2(g) electron-energy loss of Ag 3d5/2 spectra with a photon energy of 451.3 eV using high-resolution synchrotron-radiation NAP-XPS.","PeriodicalId":22006,"journal":{"name":"Surface Science Spectra","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46387922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tahereh G. Avval, S. Průša, Sean C. Chapman, M. Linford, T. Šikola, H. Brongersma
Low energy ion scattering (LEIS) is an extremely surface sensitive technique that can quantitatively analyze the outermost atomic layer of a material. In LEIS and high sensitivity-low energy ion scattering (HS-LEIS), straightforward quantitation is available using reference and/or standard materials. Here, we present the HS-LEIS spectra of zinc obtained with 3 keV 4He+ and 4 keV 20Ne+ projectile ions. Zinc is an important material with a wide range of applications. Thus, these spectra should be useful standards/references for future applications. A high purity zinc foil was used for these measurements after the removal of the oxide layer. As a reference for the instrumental sensitivity, the spectra for Cu from a high purity foil are also included with this submission. Atomic sensitivity and relative sensitivity factors for Zn and Cu are reported.
{"title":"Zinc and copper, by high sensitivity-low energy ion scattering","authors":"Tahereh G. Avval, S. Průša, Sean C. Chapman, M. Linford, T. Šikola, H. Brongersma","doi":"10.1116/6.0000953","DOIUrl":"https://doi.org/10.1116/6.0000953","url":null,"abstract":"Low energy ion scattering (LEIS) is an extremely surface sensitive technique that can quantitatively analyze the outermost atomic layer of a material. In LEIS and high sensitivity-low energy ion scattering (HS-LEIS), straightforward quantitation is available using reference and/or standard materials. Here, we present the HS-LEIS spectra of zinc obtained with 3 keV 4He+ and 4 keV 20Ne+ projectile ions. Zinc is an important material with a wide range of applications. Thus, these spectra should be useful standards/references for future applications. A high purity zinc foil was used for these measurements after the removal of the oxide layer. As a reference for the instrumental sensitivity, the spectra for Cu from a high purity foil are also included with this submission. Atomic sensitivity and relative sensitivity factors for Zn and Cu are reported.","PeriodicalId":22006,"journal":{"name":"Surface Science Spectra","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48260016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
X-ray photoelectron spectroscopy (XPS) was used to characterize a graphitic carbon nitride (g-C3N4) sample synthesized by the high temperature treatment of urea. Core-level C(1s) and N(1s) spectra are presented to aid fitting of such materials and address inconsistencies noted within published research literature.
{"title":"Core-level reference spectra for bulk graphitic carbon nitride (g-C3N4)","authors":"D. Morgan","doi":"10.1116/6.0001083","DOIUrl":"https://doi.org/10.1116/6.0001083","url":null,"abstract":"X-ray photoelectron spectroscopy (XPS) was used to characterize a graphitic carbon nitride (g-C3N4) sample synthesized by the high temperature treatment of urea. Core-level C(1s) and N(1s) spectra are presented to aid fitting of such materials and address inconsistencies noted within published research literature.","PeriodicalId":22006,"journal":{"name":"Surface Science Spectra","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2021-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45428536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Vanleenhove, C. Zborowski, I. Vaesen, I. Hoflijk, T. Conard
Gallium nitride (GaN) grown on Si by metalorganic chemical vapor deposition was analyzed using high-resolution, high-energy x-ray photoelectron spectroscopy (HAXPES). The HAXPES spectra of GaN obtained using monochromatic Cr Kα radiation at 5414.7 eV include a survey scan (Al Kα) and high-resolution spectra of Ga 3d, Ga 2p3/2, Ga 3p, Ga LMM, N 1s, C 1s, and O 1s.
{"title":"HAXPES of GaN film on Si with Cr Kα photons","authors":"A. Vanleenhove, C. Zborowski, I. Vaesen, I. Hoflijk, T. Conard","doi":"10.1116/6.0000888","DOIUrl":"https://doi.org/10.1116/6.0000888","url":null,"abstract":"Gallium nitride (GaN) grown on Si by metalorganic chemical vapor deposition was analyzed using high-resolution, high-energy x-ray photoelectron spectroscopy (HAXPES). The HAXPES spectra of GaN obtained using monochromatic Cr Kα radiation at 5414.7 eV include a survey scan (Al Kα) and high-resolution spectra of Ga 3d, Ga 2p3/2, Ga 3p, Ga LMM, N 1s, C 1s, and O 1s.","PeriodicalId":22006,"journal":{"name":"Surface Science Spectra","volume":"28 1","pages":"014006"},"PeriodicalIF":1.3,"publicationDate":"2021-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45220206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Flanagan, M. Brumbach, R. Chow, D. Casalnuovo, J. Rubio‐Zuazo, G. Castro
Electron emission from thick polished samples of polycrystalline molybdenum (Mo) and single crystalline 〈111〉 silver (Ag) was measured with hard x-ray photoemission spectroscopy. Six different excitation x-ray energies were used, nominally 8.0, 11.0, 13.0, 15.0, 18.0, and 21.5 keV. Survey spectra were recorded with each excitation to a kinetic energy of at most 15 keV, often capturing the entire emission range. The Mo 1s core peak was measured. Detailed LMM Auger spectra of Mo show marked increases in intensity and altered shape when x-ray energy exceeds the Mo 1s binding energy. The Mo and Ag L-shell photoelectron peaks are measured at four x-ray energies up to 18 keV showing the transition from 2p3/2 to 2s photoionization dominance.
{"title":"Molybdenum and silver photoemission survey spectra from hard\u0000 x-rays","authors":"T. Flanagan, M. Brumbach, R. Chow, D. Casalnuovo, J. Rubio‐Zuazo, G. Castro","doi":"10.1116/6.0000939","DOIUrl":"https://doi.org/10.1116/6.0000939","url":null,"abstract":"Electron emission from thick polished samples of polycrystalline molybdenum (Mo) and single crystalline 〈111〉 silver (Ag) was measured with hard x-ray photoemission spectroscopy. Six different excitation x-ray energies were used, nominally 8.0, 11.0, 13.0, 15.0, 18.0, and 21.5 keV. Survey spectra were recorded with each excitation to a kinetic energy of at most 15 keV, often capturing the entire emission range. The Mo 1s core peak was measured. Detailed LMM Auger spectra of Mo show marked increases in intensity and altered shape when x-ray energy exceeds the Mo 1s binding energy. The Mo and Ag L-shell photoelectron peaks are measured at four x-ray energies up to 18 keV showing the transition from 2p3/2 to 2s photoionization dominance.","PeriodicalId":22006,"journal":{"name":"Surface Science Spectra","volume":"28 1","pages":"014005"},"PeriodicalIF":1.3,"publicationDate":"2021-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44849863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Rodríguez-Pereira, Sergio A. Rincón-Ortiz, R. Ospina
An ibuprofen tablet was characterized by x-ray photoelectron spectroscopy. The sample was fixed to a stainless-steel sample holder with a copper double-sided adhesive tape. Survey spectra, C 1s, O 1s, N 1s, Si 2p, and Na 1s core level spectra were acquired. The results showed the presence of carbon and oxygen, elements that are part of the chemical structure of ibuprofen; however, these can also be part of the excipients. In addition, nitrogen, silicon, and sodium were detected, which are associated with excipients.
{"title":"Ibuprofen tablet characterized by XPS","authors":"J. Rodríguez-Pereira, Sergio A. Rincón-Ortiz, R. Ospina","doi":"10.1116/6.0000638","DOIUrl":"https://doi.org/10.1116/6.0000638","url":null,"abstract":"An ibuprofen tablet was characterized by x-ray photoelectron spectroscopy. The sample was fixed to a stainless-steel sample holder with a copper double-sided adhesive tape. Survey spectra, C 1s, O 1s, N 1s, Si 2p, and Na 1s core level spectra were acquired. The results showed the presence of carbon and oxygen, elements that are part of the chemical structure of ibuprofen; however, these can also be part of the excipients. In addition, nitrogen, silicon, and sodium were detected, which are associated with excipients.","PeriodicalId":22006,"journal":{"name":"Surface Science Spectra","volume":"28 1","pages":"014004"},"PeriodicalIF":1.3,"publicationDate":"2021-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44385630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thin film of tin (about 15 nm) was deposited on a silicon ⟨ 100 ⟩ substrate by the e-beam evaporation technique. The sample was oxidized in an oxygen atmosphere. Both the elemental tin and the oxidized sample were characterized in situ by the technique of x-ray photoelectron spectroscopy. Magnesium Kα radiation (energy = 1253.6 eV) was used as the source of x-ray excitation. The data in the tin 3d, 3p, 4p, 4d, Auger MNN regions, and the oxygen 1s region were recorded with a pass energy of 35.75 eV. The oxidized tin was found to form the SnO2 phase. The data will serve as a comparison for the study in this field.
{"title":"Analysis of tin and tin oxide by x-ray photoelectron spectroscopy","authors":"A. Chourasia, Allen E. Hillegas","doi":"10.1116/6.0000528","DOIUrl":"https://doi.org/10.1116/6.0000528","url":null,"abstract":"Thin film of tin (about 15 nm) was deposited on a silicon ⟨ 100 ⟩ substrate by the e-beam evaporation technique. The sample was oxidized in an oxygen atmosphere. Both the elemental tin and the oxidized sample were characterized in situ by the technique of x-ray photoelectron spectroscopy. Magnesium Kα radiation (energy = 1253.6 eV) was used as the source of x-ray excitation. The data in the tin 3d, 3p, 4p, 4d, Auger MNN regions, and the oxygen 1s region were recorded with a pass energy of 35.75 eV. The oxidized tin was found to form the SnO2 phase. The data will serve as a comparison for the study in this field.","PeriodicalId":22006,"journal":{"name":"Surface Science Spectra","volume":"28 1","pages":"014003"},"PeriodicalIF":1.3,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49086147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：