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[交流] 小角度X-ray散射 (SAXS)技術於奈米結構解析之應用

С???X-ray??? (SAXS)???g?????Y???????????         2011/12/28

?????????о???l??У????????????Y???????γ??C???ǘO???????????????????????Y???γ?C????M???????????Y??????????S??????Y???????????w?????????W???|??????S???????M???ɑ???????????I???????????????????I?I???У??_??????????о?????????????????о??n?}?c???g?l????????????y????K??D?M??????????????????Y??????????R????????????????????P?I???g??

??似?g(scattering technique)???????????Y????????????????????????????????^?????????????????????О??????????????????????????L(????:X????????)???????????(scattering angle)???С????似?g?????????????????w??????(atomic structure) ????^?Y??(microstructure) [1-3]???S???о??I???}????????^????F??????в????????????????x???????????l?????z?y???g????С????V???X-ray (Small/Wide Angle X-ray Scattering, i.e. WAXS and SAXS)??????WAXS????????????Y???О???Y?????????????SAXS?t???????????s?锵????????????????g??????^?m??????????M?b??????g?????????γ????????Y?????????????似?g??????????Y??????c??????: 1??????????????????e?u??????????spin-coat????drop-cast?????ε??u?????????^?????????B????????????2?????w??y??Y??:???^?????@??R????似?g??????y?????^?????????????^??y???Y????3?? in-situ???:???????????y??in-situ?????O?[4,5]??

????X-ray????y???|?Y???????????????L????????|?Y?????瑪??X-ray ?Y???W?????ξ??Y????????L?????c???L???????Y?????????????????????|???z?w???????????????F???????|???t??????SAXS??y????????Y????????????????????B?О鼰????????????t???????B????似?g(Dynamic Light Scattering; DLS)??????????????????????????似?g?ɑ?????????y???????x???m????????????????Ч?????y????????}????y?????????С???X-ray??????????ε??????????????K???ν?B???P?о??????????P?о???

??似?g????????????y?????Y??????
??似?g????y???????Y?????S?????^?y???y???h???????????в???????O???????????????x???m??^??????y??K?????????t?Y????Y?????????P???x????????B??????????y???????Y??????????????o?x????????y????
?????????????????y?????????
???]?????y?о??ж???????????У???????????????^??(??; c < c*???????)????ζ????????g?K?o???@??????????????r????????????????????(??????)?????Y????????????I??О???F?????????????Π?????(Form factor; P(q)) ?????????r?Y??????(Structure factor; S(q))???????????r??????????y???????????????????????Π?????P(q) ??????????D???????????log-log ???D??l?F??????????????μ???????? ????鳣????Π?????P(q)???????w?????μ???????????????????????????e??4??2??1??


?D?????????????????Π?????P(q)???D???????^???q??^?????μ?????????????????????

??SiO2???????????麆?ε???????D????SiO2?????????????SAXS???D?V????D????????????????---??????????????????????????????Y?????·????n??

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