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Journals / Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2018 / Cilt: 20 - Sayı: 1

Radioluminescence and optic characterization of CdSe quantum dot added polymer nanocomposites

CdSe kuantum nokta katkılı polimer nanokompozitlerin radyolüminesans ve optik karakterizasyonu

İlker Çetin KESKİN
Murat TÜREMİŞ
Mehmet İsmail KATI
Yasemin TUNCER ARSLANLAR
Rana KİBAR
Ahmet ÇETİN
Pages
132–144
Publication Date
2018-07-17
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The nanocomposites blended with CdSe QD, this value increased to 3.23 eV.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, CdSe quantum dots which is highly luminescent were synthesized by two phase method using oleic acid (OA) as a surfactant.
📊
Key Findings & Data:Radioluminescence peaks at 335 nm, 510 nm and 655 nm for the oleic acid-capped CdSe nanocrystal were observed.
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Conclusion & Impact:The nanocomposites blended with CdSe QD, this value increased to 3.23 eV.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Quantum dots · Radioluminescence (RL) · Low Density Polyethylene (LDPE)

Abstract

In this study, CdSe quantum dots which is highly luminescent were synthesized by two phase method using oleic acid (OA) as a surfactant. New nanocomposites have been obtained by mixing CdSe quantum dots with low-density polyethylene (LDPE) in different ratios. The structural (FT-IR), morphological (TEM, SEM), thermal (TG-DTA) and absorption (UV-VIS) properties of these nanocomposites were investigated as well as their radioluminescence (RL) properties. Radioluminescence peaks at 335 nm, 510 nm and 655 nm for the oleic acid-capped CdSe nanocrystal were observed. As a consequence of the nanocomposites being doped with powder CdSe quantum dot, a significant blue shift was observed in the absorption bands. The optical band gap for CdSe was calculated as 1.82 eV. The nanocomposites blended with CdSe QD, this value increased to 3.23 eV.

Özet

Bu çalışmada, yüksek parıldar madde olan CdSe kuantum noktalar, yüzey aktif madde olarak oleik asit (OA) kullanılarak çift fazlı yöntemle sentezlenmiştir., CdSe kuantum noktalarının alçak yoğunluklu polietilen (AYPE) ile farklı oranlarda karıştırılmasıyla yeni nanokompozititler elde edildi. Bu nanokompozitlerin yapısal (FT-IR), morfolojik (TEM, SEM), termal (TG-DTA) ve soğurma (UV-VIS) özelliklerinin yanı sıra radyolüminesans (RL) özellikleri araştırıldı. Oleik asit kaplı CdSe nanokristali için 335 nm, 510 nm ve 655 nm'de radyolüminesans pikleri gözlendi. Nanokompozitlerin toz haldeki CdSe kuantum nokta ile katkılandırılması sonucu, soğurma bantlarında önemli derecede mavi bölgeye kayma gözlemlendi. CdSe için optik bant aralığı 1.82 eV olarak hesaplandı. CdSe QD ile katkılandırılmış nanokompozitler için bu değer 3,23 eV'ye yükselmiştir.

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Cite This Article

KESKİN, İ. Ç., TÜREMİŞ, M., KATI, M. İ., ARSLANLAR, Y. T., KİBAR, R., ÇETİN, A. (2018). Radioluminescence and optic characterization of CdSe quantum dot added polymer nanocomposites. Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 20 - Sayı: 1, 132–144. https://ajindex.com/articles/251016

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