| Autor: |
Trinh Duc Thien, Tran Thi Kim Chi, Bui Thi Thu Hien, Pham Nguyen Hai, Hoang Nhu Thanh |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Communications in Physics. 31 |
| ISSN: |
0868-3166 |
| DOI: |
10.15625/0868-3166/15358 |
| Popis: |
We report the large-scale synthesis of highly luminescent ZnSe nanocrystals (NCs) by a simple and low-cost hydrothermal method. XRD (X-ray Diffraction) and HR-TEM (High Resolution Transmission Microscopy) characterization studies confirmed the formation of as-synthesized ZnSe NCs in cubic structure. The optical property of ZnSe NCs were tunable via controlling the Zn:Se molar precursor ratio (0.5:1–1.5:1), reaction temperature (150–200 0C), and reaction time (5–30 h). The resulting ZnSe NCs with the Zn:Se precursor ratio of 1:1, hydrothermally treated at 190 0C for 20 h exhibited the highest photoluminescence quantum yield obtained by PL spectra with the 355 nm excitation. The current–voltage (I–V) characteristics of the ZnSe NCs show its promising application in the solid-state lighting. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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