ICCAS OpenIR
Mechanism of hologram formation in dichromated gelatin with x-ray photoelectron spectroscopy
Xiong, LW; Liu, SH; Peng, BX
1998-06-10
Source PublicationAPPLIED OPTICS
ISSN0003-6935
Volume37Issue:17Pages:3678-3684
AbstractThe mechanism of hologram formation in dichromated gelatin is studied from all aspects with x-ray photoelectron spectroscopy (XPS). It is indicated that the Cr 2p(3/2) XPS spectrum of chromium used for hologram formation shows the property of exhibiting a continuous spectrum during the process of dichromated-gelatin hologram formation. By means of curve fitting and drawing a comparison between the obtained spectra and those of some standard substances, it is found that during the process of hologram formation the valence of chromium used for hologram formation changes from Cr6+ to a quasi-trivalent state to Cr4+, and finally to Cr3+. Accordingly, the corresponding compound experiences a change from (NH4)(2)Cr2O7 to the transient state close to the feature of Cr(OH)(3) to CrO2, and finally to Cr3+, cross linking with the gelatin. The essence of the chemical change at different stages of the process of hologram formation was found, and so the present mechanism, which is determined with comparatively abundant proof, should replace previously reported mechanisms, which were too simple, varied, and sometimes even mutually contradictory. According to the experimental results and the fact that a solid-film reaction, which differs from that of the liquid-phase reaction, was studied, possible chemical-reaction equations of the process of hologram formation are established. This becomes the basis for explaining previous findings and expanding further research. (C) 1998 Optical Society of America.
Indexed BySCI
Language英语
WOS IDWOS:000074002000010
PublisherOPTICAL SOC AMER
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/74698
Collection中国科学院化学研究所
Corresponding AuthorXiong, LW
Affiliation1.Chinese Acad Sci, Inst Photog Chem, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Xiong, LW,Liu, SH,Peng, BX. Mechanism of hologram formation in dichromated gelatin with x-ray photoelectron spectroscopy[J]. APPLIED OPTICS,1998,37(17):3678-3684.
APA Xiong, LW,Liu, SH,&Peng, BX.(1998).Mechanism of hologram formation in dichromated gelatin with x-ray photoelectron spectroscopy.APPLIED OPTICS,37(17),3678-3684.
MLA Xiong, LW,et al."Mechanism of hologram formation in dichromated gelatin with x-ray photoelectron spectroscopy".APPLIED OPTICS 37.17(1998):3678-3684.
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