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[交流] 淺談太陽能矽晶片之品質檢驗方法 已有1人参与

?\?????????????|?z???         2012/5/24

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?????????a??????????V???^???????????(Metallurgical Grade Silicon)???????????????T???????????????(Solar Grade Silicon)????????????^???w???L?????????????????????????????L??????????????????N?????????????Cz ??(Czochrilski Method)???????????????ξ??????????????T??(Casting Method)??????????????????D???ξ??c?????a????????D???????????ξ?????u????????????????????D?QЧ?????????@????????????S?????磬?@Щ?????????????d???????????(Recombination Center)??????????????D?QЧ???????

????d?????
?????????d???????Minority Carrier Lifetime?????QLifetime???c?????D?QЧ??????????P?B?????Lifetime ???????????s?|?c?????????s?|?????????s?|???????e??(Precititates)???????????????????Lifetime ???D????BP Solar ?????a????V???u???????????????D?QЧ???c???VLifetime ???P?S???????VLifetime?^??r????????|?^??????????s?|?????????????^????r?u????????????Ч????????

????????????V???L????? Life-time ?????й??????????V?????????V????c????Lifetime ????????gλ???????Lifetime ???????????????s?|????w???L?^???У????S?????w??????????????e?????^??Q?????(Segregation)???????V????????s?|????????????Lifetime ?????????


?D????µ-PCD???cPL??????Lifetime Mapping?Y??

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??????s?|????????????????D?QЧ???????????????s?|????????????????????????????????s?|?????????С?1 ppmw ????????N?s?|???e?????S?????? p-type ?cn-type ?????????s?|?????S?????????D???p-type ??????????N?s?|?????S?????D?п?????p-type ??????P ?cCu ?????S???????????Ta ??Mo ??????S???????????????^1012 atoms/cm3 ???????????D?QЧ?????20%??????????????p-type ????????????F???s?|??Fe ??Ni ?cCu ??????????????弰??屣?o?T???????????????????????D?????Fe ??Ni ?cCu ???N?????s?|???p-type ???Lifetime ?????????@Щ?????s?|???????S??(Segregation Coefficient)?^С????????L???^???о??????Ч??????????в??????????????????m?????u???н???Gettering ?M???????

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????N??????????|???^??S???о??F???????????о????@????鲻?????猦?????d?????????в??????F????????N???馲3 ??9 ?r??????????g????磬??r??????????p??????(Twin Boundary)???]??Dangling Bond?????????????????d??????????}???D??????g??????c???????????Ч??(Quantum Efficiency)??????^???D??(a)?????????????????磬????@Щ???綼????g????磬???????Ч??????????????????????D??(b)????^??????????Ч?????y???????????Dangling Bond ???????????????Ч??????@??????????????N????????????u??????????????D?QЧ???з?????????????????????????g??????????????????u??????????Ч?????????????????緽?????????L?r??????????????

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??????(Etch-pit Density; EPD)????????????|?????????????????y??????????M?????g??????????????@??R???^???K????λ??e???g????????????@?????^???????σ???????c????????????????


?D?????PL ???y???????D

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????????????I?????s?I304??305??????????Y??????
http://www.materialsnet.com.tw/DocView.aspx?id=10254
http://www.materialsnet.com.tw/DocView.aspx?id=10317
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天若有情天亦老,人间正道是沧桑。
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