Synthesis of Highly Monodisperse CdSe Quantum Dots and Size Dependency of Optical Properties
نویسندگان
چکیده
Benzersiz elektriksel ve optik özelliklerinden dolay? yar?iletken kuantum noktalar birçok uygulama alan?na sahiptirler. Son y?llarda CdSe en fazla tercih edilen nanomalzemelerin ba??nda yer almaktad?r. S?cak enjeksiyon metodunu kullanarak yüksek oranda e? parçac?k boyutuna sahip alt?gen tip bir simetriye çinko blend kristal tipinde sentezlendi. Elde numunelerin yap?lar? özellikleri UV-Vis, fotolüminesans, XRD TEM karakterizasyon metodlar?yla ayd?nlat?ld?. 1S, 2S 1P absorbsiyon geçi?leri Stoke kayma miktarlar?n?n malzeme boyutlar?yla olan ili?kileri incelendi.
منابع مشابه
development of different optical methods for determination of glucose using cadmium telluride quantum dots and silver nanoparticles
a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...
Synthesis and Optical Study of CdZnTe Quantum Dots
The comparison of growth processes and fluorescent properties of CdZnTe semiconductor quantum dots that are synthesized in different concentrations of Zn2+ in water are discussed in this paper. The samples are characterized through absorbtion (UV) and photoluminescence spectra (PL). The results show that when the reaction time is prolonged, the absorption peak and fluorescent emission peak pres...
متن کاملSynthesis and Optical Study of CdZnTe Quantum Dots
The comparison of growth processes and fluorescent properties of CdZnTe semiconductor quantum dots that are synthesized in different concentrations of Zn2+ in water are discussed in this paper. The samples are characterized through absorbtion (UV) and photoluminescence spectra (PL). The results show that when the reaction time is prolonged, the absorption peak and fluorescent emission peak pres...
متن کاملSurfactant mediated optical properties of cytosine capped CdSe quantum dots
a r t i c l e i n f o This letter demonstrates the use of one of the nucleobases, 'cytosine' as a new capping agent in controlling the size of the nanoparticles. A size dependent blue shift in optical absorption with enhanced luminescence is observed. Since the calculated density of states do not show any change in the band gap of as-prepared quantum dots after capping, the observed blue shift ...
متن کاملcontrol of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Politeknik dergisi
سال: 2021
ISSN: ['1302-0900', '2147-9429']
DOI: https://doi.org/10.2339/politeknik.639950