{"title":"氧化纳米晶粒子与核壳结构半导体-氧化镁复合材料的平带电位变化","authors":"J. Bandara, U. W. Pradeep","doi":"10.4038/SLJP.V7I0.205","DOIUrl":null,"url":null,"abstract":"SnO 2 thin films and particles show feeble solar cell performance and poor photocatalytic activity respectively. It has been reported that coating of a thin MgO layer on SnO 2 particles results in enhancement of both solar cell performance and catalytic activities. The promoting effect of MgO layer was owing to barrier effect where MgO acts as a barrier layer for charge recombination. We noticed negative shift of flatband (FB) potential of SnO 2 with the increase of pH values and coating of a thin MgO layer on SnO 2 particles. It is shown how the negative shift in FB potential may contribute to enhance the solar cell efficiencies and photocatalytic activity in addition to the barrier effect of MgO layer.","PeriodicalId":21880,"journal":{"name":"Sri Lankan Journal of Physics","volume":"66 1","pages":"23"},"PeriodicalIF":0.0000,"publicationDate":"2006-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Variation of flatband potential of oxide nanocrystalline particles with core-shell structured semiconductor-MgO composites\",\"authors\":\"J. Bandara, U. W. Pradeep\",\"doi\":\"10.4038/SLJP.V7I0.205\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"SnO 2 thin films and particles show feeble solar cell performance and poor photocatalytic activity respectively. It has been reported that coating of a thin MgO layer on SnO 2 particles results in enhancement of both solar cell performance and catalytic activities. The promoting effect of MgO layer was owing to barrier effect where MgO acts as a barrier layer for charge recombination. We noticed negative shift of flatband (FB) potential of SnO 2 with the increase of pH values and coating of a thin MgO layer on SnO 2 particles. It is shown how the negative shift in FB potential may contribute to enhance the solar cell efficiencies and photocatalytic activity in addition to the barrier effect of MgO layer.\",\"PeriodicalId\":21880,\"journal\":{\"name\":\"Sri Lankan Journal of Physics\",\"volume\":\"66 1\",\"pages\":\"23\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-12-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sri Lankan Journal of Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4038/SLJP.V7I0.205\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sri Lankan Journal of Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4038/SLJP.V7I0.205","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Variation of flatband potential of oxide nanocrystalline particles with core-shell structured semiconductor-MgO composites
SnO 2 thin films and particles show feeble solar cell performance and poor photocatalytic activity respectively. It has been reported that coating of a thin MgO layer on SnO 2 particles results in enhancement of both solar cell performance and catalytic activities. The promoting effect of MgO layer was owing to barrier effect where MgO acts as a barrier layer for charge recombination. We noticed negative shift of flatband (FB) potential of SnO 2 with the increase of pH values and coating of a thin MgO layer on SnO 2 particles. It is shown how the negative shift in FB potential may contribute to enhance the solar cell efficiencies and photocatalytic activity in addition to the barrier effect of MgO layer.
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