Preparation and Optical Properties Assessment of CdSe Quantum Dots

Abstract

<p class="MsoNormal" style="text-align:justify;"> <span lang="EN-US">CdSe quantum dots (QDs) (2</span><span lang="EN-US"> </span><span lang="EN-US">-</span><span lang="EN-US"> </span><span lang="EN-US">3 nm) were synthesized by chemical precipitation method. Optical and structure proper</span><span lang="EN-US">ties of the products were investigated by scanning tunneling microscope (STM), X-ray diffraction (XRD), and ultra violet</span><span lang="EN-US">-</span><span lang="EN-US">visible (UV-Vis) spectrophotometer. The results show that high-quality cubic CdSe QDs were obtained. It is also obtained that temperature is one of the most important factors the affect on the particle size and optical properties of the prepared QDs samples.</span> </p

Photo-Catalytic Behavior of Cdse QDS Sensitized Zr-(1,3,5-Benzene Tricarboxylic Acid) Metal-Organic Frameworks.

“…In figure 1a, the planes (111), (220) and (311) corresponds to CdSe semiconductor QDs and demonstrate crystalline cubic phase for CdSe QDs , which have strong match with reported procedures [38]. In figure 1b, [39].…”

Photoinduced interaction of CdSe quantum dot with coumarins

“…The spectral pattern exhibits three main peaks at diffraction angle 2θ¼ 251, 421 and 491, respectively, corresponds to the Miller indices (111), (220) and (311) planes, respectively of the cubic CdSe QDs. A similar behavior was also observed by Amiri et al [25]. The QDs crystallite size were determined from the (111) reflection using Scherrer's formula (Eq.…”

Color prediction in ceramic enamels using the Kubelka Kunk Model

“…The pigment is a cobalt chromite (CoAl2O4) which shows a blue color due to the presence of the Co 2+ ion in the spinel structure [16]. Figure 3 shows a broad absorption band between 400 nm and 600 nm that is associated with electronic transitions typical for cadmium red (CdSe) [17]. It is an n-type semiconductor material that the bandgap is about 1.74 eV at 300K.…”