Elisabeth Pratidhina, Sabaruddin, Riki Perdana, Heru Kuswanto, Wipsar Sunu Brams Dwandaru
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. © 2020, G.V. Kurdyumov Institute for Metal Physics of N.A.S. of Ukraine. All rights reserved.
Yogyakarta State University, Colombo No. 1 Rd, Yogyakarta, Indonesia; Department of Physics Education, Widya Mandala Catholic University, 42-44, Dinoyo Str., Surabaya, 60236, East Java, Indonesia
