Issues

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2020

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vol. 18 /

Issue 3

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Elisabeth Pratidhina, Sabaruddin, Riki Perdana, Heru Kuswanto, Wipsar Sunu Brams Dwandaru
«Heating-Induced Photoluminescence-Tuneable Carbon Dots Synthesized From Aloe Vera Gel»
631–637 (2020)

PACS numbers: 36.40.Vz, 61.46.Df, 78.30.Na, 78.40.Ri, 78.55.Kz, 78.67.Hc, 81.07.Ta

Along with quantum dots (QD), carbon dots (CDs) have attracted a lot of attention due to its strong optical properties and simple synthesis procedure. For decades, Aloe vera has been used for medical and cosmetic applications. Another application of Aloe vera is reported here; we have synthesized CDs from Aloe vera gel through a simple heating process. With variation of heating duration, we achieved CDs with various photoluminescence (PL) properties. The variation of heating duration has changed the functional group on the CDs surface and induces tuneable PL properties. In this paper, we present three types of CDs, i.e., blue, green, and yellow CDs with PL peak at wavelength of at 438, 503, and 614 nm, respectively.

Keywords: carbon dots, photoluminescence, tunability, heating, Aloe vera

https://doi.org/10.15407/nnn.18.03.631

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