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Improved Sensitization of Zinc Oxide Nanorods by Cadmium Telluride Quantum Dots through Charge Induced Hydrophilic Surface Generation
المؤلفون المشاركون
Dutta, Joydeep
Laxman, Karthik
Bora, Tanujjal
Al-Harthi, Salim H.
المصدر
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-12-09
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
This paper reports on UV-mediated enhancement in the sensitization of semiconductor quantum dots (QDs) on zinc oxide (ZnO) nanorods, improving the charge transfer efficiency across the QD-ZnO interface.
The improvement was primarily due to the reduction in the interfacial resistance achieved via the incorporation of UV light induced surface defects on zinc oxide nanorods.
The photoinduced defects were characterized by XPS, FTIR, and water contact angle measurements, which demonstrated an increase in the surface defects (oxygen vacancies) in the ZnO crystal, leading to an increase in the active sites available for the QD attachment.
As a proof of concept, a model cadmium telluride (CdTe) QD solar cell was fabricated using the defect engineered ZnO photoelectrodes, which showed ∼10% increase in photovoltage and ∼66% improvement in the photocurrent compared to the defect-free photoelectrodes.
The improvement in the photocurrent was mainly attributed to the enhancement in the charge transfer efficiency across the defect rich QD-ZnO interface, which was indicated by the higher quenching of the CdTe QD photoluminescence upon sensitization.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Laxman, Karthik& Bora, Tanujjal& Al-Harthi, Salim H.& Dutta, Joydeep. 2014. Improved Sensitization of Zinc Oxide Nanorods by Cadmium Telluride Quantum Dots through Charge Induced Hydrophilic Surface Generation. Journal of Nanomaterials،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1042033
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Laxman, Karthik…[et al.]. Improved Sensitization of Zinc Oxide Nanorods by Cadmium Telluride Quantum Dots through Charge Induced Hydrophilic Surface Generation. Journal of Nanomaterials No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1042033
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Laxman, Karthik& Bora, Tanujjal& Al-Harthi, Salim H.& Dutta, Joydeep. Improved Sensitization of Zinc Oxide Nanorods by Cadmium Telluride Quantum Dots through Charge Induced Hydrophilic Surface Generation. Journal of Nanomaterials. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1042033
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1042033
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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