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Radiation induced modifications on structural and luminescence properties of LDPE-Na2SO4:Sm3+ composites by gamma-ray
张静(正); Abu Zayed Mohammad Saliqur Rahman; Yang J(杨静); Wu YR(吴亚茹); Cao XZ(曹兴忠); Yu RS(于润升); Wang BY(王宝义); Zhang, J; Rahman, AMS; Li, YX; Yang, J; Wu, YR; Yuan, DQ; Cao, XZ; Yu, RS; Wang, BY
2015
Source PublicationOPTICAL MATERIALS
ISSN0925-3467
EISSN1873-1252
Volume42Pages:251-255
Corresponding Author曹兴忠
SubtypeArticle
AbstractA comparative study on the morphology, structure and luminescence modifications of LDPE-Na2SO4: Sm3+ composite induced by gamma irradiation was reported for the first time. The composites were irradiated with irradiation doses of 10, 30, and 50 kGy in air at room temperature. Modifications on structural and luminescence properties of LDPE-Na2SO4:Sm3+ composites were investigated by using several analytical methods. The X-ray diffraction (XRD) patterns revealed that the cross-linking improved the crystallinity of the composites. Scanning electron microscope (SEM) images illustrated the surface modifications of composites induced by irradiation. Results of positron annihilation lifetime spectroscopy (PALS) suggested that gamma irradiation affected the free volumes concentrations in the samples. The photoluminescence (PL) spectra of non-irradiated and irradiated composites consisted of four main peaks at 563, 598, 644 and 706 nm which could be assigned to the (4)G(5/2) -> H-6(J)(J = 5/2, 7/2,9/2 and 11/2, respectively) transitions within the 4f(5) electronic configuration of Sm3+. Meanwhile, we observed an additional peak at about 686 nm in the irradiated composites, owing to the conversion of Sm3+-> Sm2+. Concentrations of the Sm2+ centers linearly increased with gamma irradiation doses, which partly accounted for the degradation of PL intensity of Sm3+ peaks. (C) 2015 Elsevier B.V. All rights reserved.
KeywordComposite material Gamma irradiation Luminescence Free volume Sm2+
Subject AreaMaterials Science; Optics
DOI10.1016/j.optmat.2014.12.041
Indexed BySCI ; ADS ; EI ; CA
Language英语
WOS Research AreaMaterials Science, Multidisciplinary ; Optics
WOS SubjectMaterials Science ; Optics
WOS IDWOS:000351800300041
ADS Bibcode2015OptMa..42..251Z
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015OptMa..42..251Z
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015OptMa..42..251Z/citations
Citation statistics
Cited Times:2 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228364
Collection多学科研究中心
Recommended Citation
GB/T 7714
Zhang J,Abu Zayed Mohammad Saliqur Rahman,Yang J,et al. Radiation induced modifications on structural and luminescence properties of LDPE-Na2SO4:Sm3+ composites by gamma-ray[J]. OPTICAL MATERIALS,2015,42:251-255.
APA 张静.,Abu Zayed Mohammad Saliqur Rahman.,杨静.,吴亚茹.,曹兴忠.,...&Wang, BY.(2015).Radiation induced modifications on structural and luminescence properties of LDPE-Na2SO4:Sm3+ composites by gamma-ray.OPTICAL MATERIALS,42,251-255.
MLA 张静,et al."Radiation induced modifications on structural and luminescence properties of LDPE-Na2SO4:Sm3+ composites by gamma-ray".OPTICAL MATERIALS 42(2015):251-255.
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