Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/81257
Título: | Spectral-temporal luminescence properties of Colloidal CdSe/ZnS Quantum Dots in relevant polymer matrices for integration in low turn-on voltage AC-driven LEDs |
Autor(es): | Adão, Ricardo M R Sun, Tangyou Romeira, Bruno Alpuim, P. Nieder, Jana B |
Data: | 28-Mar-2022 |
Editora: | Optica |
Revista: | Optics Express |
Citação: | Adão, R. M. R., Sun, T., Romeira, B., Alpuim, P., & Nieder, J. B. (2022, March 15). Spectral-temporal luminescence properties of Colloidal CdSe/ZnS Quantum Dots in relevant polymer matrices for integration in low turn-on voltage AC-driven LEDs. Optics Express. Optica Publishing Group. http://doi.org/10.1364/oe.449037 |
Resumo(s): | This work employs spectral and spectral-temporal Photoluminescence (PL) spectroscopy techniques to study the radiative mechanisms in colloidal CdSe/ZnS Quantum Dot (QD) thin films without and with 1% PMMA polymer matrix embedding (QDPMMA). The observed bimodal transient-spectral PL distributions reveal bandgap transitions and radiative recombinations after interdot electron transfer. The PMMA polymer embedding protects the QDs during the plasma-sputtering of inorganic layers electroluminescent (EL) devices, with minimal impact on the charge transfer properties. Further, a novel TiO2-based, all-electron bandgap, AC-driven QLED architecture is fabricated, yielding a surprisingly low turn-on voltage, with PL-identical and narrow-band EL emission. The symmetric TiO2 bilayer architecture is a promising test platform for alternative optical active materials. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/81257 |
DOI: | 10.1364/OE.449037 |
ISSN: | 1094-4087 |
Versão da editora: | https://opg.optica.org/oe/fulltext.cfm?uri=oe-30-7-10563&id=470418 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - CEP - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Optics Express 7 (2022) 10563.pdf | Open Access Article | 3,61 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons