Minji Ko, Soyeon Yoon, Yun Jae Eo, Keyong Nam Lee, Young Rag Do
{"title":"Zr(i-PrO)4 对绿色 CuGaS2/ZnS/Zr(i-PrO)4@Al2O3 和红色 CuInS2/ZnS/Zr(i-PrO)4@Al2O3 QD 混合粉末的钝化和层间效应","authors":"Minji Ko, Soyeon Yoon, Yun Jae Eo, Keyong Nam Lee, Young Rag Do","doi":"10.1186/s11671-022-03741-0","DOIUrl":null,"url":null,"abstract":"<div><p>Broadband emissive I–III–VI quantum dots (QDs) are synthesized as efficient and stable I–III–VI QDs to be used as eco-friendly luminescent materials in various applications. Here, we introduce the additional passivation of zirconium isopropoxide (Zr(i-PrO)<sub>4</sub>) to improve the optical properties and environmental stability of green-emitting CuGaS<sub>2</sub>/ZnS (G-CGS/ZnS) and red-emitting CuInS<sub>2</sub>/ZnS (R-CIS/ZnS) QDs. The photoluminescence quantum yield (PLQY) of both resultant Zr(i-PrO)<sub>4</sub>-coated G-CGS/ZnS and R-CIS/ZnS QDs reaches similar values of ~ 95%. In addition, the photostability and thermal-stability of G-CGS/ZnS/Zr(i-PrO)<sub>4</sub> and R-CIS/ZnS/Zr(i-PrO)<sub>4</sub> QDs are improved by reducing the ligand loss via encapsulation of the ligand-coated QD surface with Zr(i-PrO)<sub>4</sub>. It is also proved that the Zr(i-PrO)<sub>4</sub>-passivated interlayer mitigates the further degradation of I-III-V QDs from ligand loss even under harsh conditions during additional hydrolysis reaction of aluminum tri-sec-butoxide (Al(sec-BuO)<sub>3</sub>), forming easy-to-handle G-CGS/ZnS and R-CIS/ZnS QD-embedded Al<sub>2</sub>O<sub>3</sub> powders. Therefore, the introduction of a Zr(i-PrO)<sub>4</sub> complex layer potentially provides a strong interlayer to mitigate degradation of I–III–VI QD-embedded Al<sub>2</sub>O<sub>3</sub> hybrid powders as well as passivation layer for protecting I–III–VI QD.</p></div>","PeriodicalId":715,"journal":{"name":"Nanoscale Research Letters","volume":"17 1","pages":""},"PeriodicalIF":4.7030,"publicationDate":"2022-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9640527/pdf/","citationCount":"0","resultStr":"{\"title\":\"Passivation and Interlayer Effect of Zr(i-PrO)4 on Green CuGaS2/ZnS/Zr(i-PrO)4@Al2O3 and Red CuInS2/ZnS/Zr(i-PrO)4@Al2O3 QD Hybrid Powders\",\"authors\":\"Minji Ko, Soyeon Yoon, Yun Jae Eo, Keyong Nam Lee, Young Rag Do\",\"doi\":\"10.1186/s11671-022-03741-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Broadband emissive I–III–VI quantum dots (QDs) are synthesized as efficient and stable I–III–VI QDs to be used as eco-friendly luminescent materials in various applications. Here, we introduce the additional passivation of zirconium isopropoxide (Zr(i-PrO)<sub>4</sub>) to improve the optical properties and environmental stability of green-emitting CuGaS<sub>2</sub>/ZnS (G-CGS/ZnS) and red-emitting CuInS<sub>2</sub>/ZnS (R-CIS/ZnS) QDs. The photoluminescence quantum yield (PLQY) of both resultant Zr(i-PrO)<sub>4</sub>-coated G-CGS/ZnS and R-CIS/ZnS QDs reaches similar values of ~ 95%. In addition, the photostability and thermal-stability of G-CGS/ZnS/Zr(i-PrO)<sub>4</sub> and R-CIS/ZnS/Zr(i-PrO)<sub>4</sub> QDs are improved by reducing the ligand loss via encapsulation of the ligand-coated QD surface with Zr(i-PrO)<sub>4</sub>. It is also proved that the Zr(i-PrO)<sub>4</sub>-passivated interlayer mitigates the further degradation of I-III-V QDs from ligand loss even under harsh conditions during additional hydrolysis reaction of aluminum tri-sec-butoxide (Al(sec-BuO)<sub>3</sub>), forming easy-to-handle G-CGS/ZnS and R-CIS/ZnS QD-embedded Al<sub>2</sub>O<sub>3</sub> powders. Therefore, the introduction of a Zr(i-PrO)<sub>4</sub> complex layer potentially provides a strong interlayer to mitigate degradation of I–III–VI QD-embedded Al<sub>2</sub>O<sub>3</sub> hybrid powders as well as passivation layer for protecting I–III–VI QD.</p></div>\",\"PeriodicalId\":715,\"journal\":{\"name\":\"Nanoscale Research Letters\",\"volume\":\"17 1\",\"pages\":\"\"},\"PeriodicalIF\":4.7030,\"publicationDate\":\"2022-11-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9640527/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nanoscale Research Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1186/s11671-022-03741-0\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanoscale Research Letters","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1186/s11671-022-03741-0","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Passivation and Interlayer Effect of Zr(i-PrO)4 on Green CuGaS2/ZnS/Zr(i-PrO)4@Al2O3 and Red CuInS2/ZnS/Zr(i-PrO)4@Al2O3 QD Hybrid Powders
Broadband emissive I–III–VI quantum dots (QDs) are synthesized as efficient and stable I–III–VI QDs to be used as eco-friendly luminescent materials in various applications. Here, we introduce the additional passivation of zirconium isopropoxide (Zr(i-PrO)4) to improve the optical properties and environmental stability of green-emitting CuGaS2/ZnS (G-CGS/ZnS) and red-emitting CuInS2/ZnS (R-CIS/ZnS) QDs. The photoluminescence quantum yield (PLQY) of both resultant Zr(i-PrO)4-coated G-CGS/ZnS and R-CIS/ZnS QDs reaches similar values of ~ 95%. In addition, the photostability and thermal-stability of G-CGS/ZnS/Zr(i-PrO)4 and R-CIS/ZnS/Zr(i-PrO)4 QDs are improved by reducing the ligand loss via encapsulation of the ligand-coated QD surface with Zr(i-PrO)4. It is also proved that the Zr(i-PrO)4-passivated interlayer mitigates the further degradation of I-III-V QDs from ligand loss even under harsh conditions during additional hydrolysis reaction of aluminum tri-sec-butoxide (Al(sec-BuO)3), forming easy-to-handle G-CGS/ZnS and R-CIS/ZnS QD-embedded Al2O3 powders. Therefore, the introduction of a Zr(i-PrO)4 complex layer potentially provides a strong interlayer to mitigate degradation of I–III–VI QD-embedded Al2O3 hybrid powders as well as passivation layer for protecting I–III–VI QD.
期刊介绍：
Nanoscale Research Letters (NRL) provides an interdisciplinary forum for communication of scientific and technological advances in the creation and use of objects at the nanometer scale. NRL is the first nanotechnology journal from a major publisher to be published with Open Access.
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