Semiconductor nanocrystals are particles of nanometer size whose physico-chemical properties depend markedly from their size, owing to the high surface area/volume ratio and to the quantum con-finement of electrons within the nanoparticles. For this reason such systems are termed quantum dots. Discovered in the early 1980s, quantum dots have rapidly attracted the interest of chemists, physicists and biologists, because of their peculiar optical and electronic proper-ties (in particular, their intense photoluminescence). The widespread diffusion of quantum dots is largely due to the development of simple and reliable synthetic methods that afford an accurate control of shape, size and chemical composition of the nanocrystals. Moreover, the sur-face of quantum dots can be functionalized with molecular units that can affect both the chemical behaviour (reactivity, solubility) and the electronic properties. Besides the interest for basic science, semicon-ductor nanocrystals are promising for diverse technological applica-tions from optoelectronic devices to medical therapy. In the past ten years research in these areas has shown that the use of quantum dots is advantageous for the construction of solar cells, displays, light detec-tors, photocatalysts, luminescent sensors for the high-sensitivity detec-tion of analytes of biological and environmental importance, and drugs for the treatment of cancer.

Credi, A. (2015). Semiconductor nanocrystal quantum dots: synthesis, opto-electronic properties, and applications. QUADERNI DI RICERCA IN DIDATTICA, 8, 70-82.

Semiconductor nanocrystal quantum dots: synthesis, opto-electronic properties, and applications

CREDI, ALBERTO
2015

Abstract

Semiconductor nanocrystals are particles of nanometer size whose physico-chemical properties depend markedly from their size, owing to the high surface area/volume ratio and to the quantum con-finement of electrons within the nanoparticles. For this reason such systems are termed quantum dots. Discovered in the early 1980s, quantum dots have rapidly attracted the interest of chemists, physicists and biologists, because of their peculiar optical and electronic proper-ties (in particular, their intense photoluminescence). The widespread diffusion of quantum dots is largely due to the development of simple and reliable synthetic methods that afford an accurate control of shape, size and chemical composition of the nanocrystals. Moreover, the sur-face of quantum dots can be functionalized with molecular units that can affect both the chemical behaviour (reactivity, solubility) and the electronic properties. Besides the interest for basic science, semicon-ductor nanocrystals are promising for diverse technological applica-tions from optoelectronic devices to medical therapy. In the past ten years research in these areas has shown that the use of quantum dots is advantageous for the construction of solar cells, displays, light detec-tors, photocatalysts, luminescent sensors for the high-sensitivity detec-tion of analytes of biological and environmental importance, and drugs for the treatment of cancer.
2015
Credi, A. (2015). Semiconductor nanocrystal quantum dots: synthesis, opto-electronic properties, and applications. QUADERNI DI RICERCA IN DIDATTICA, 8, 70-82.
Credi, A.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/543969
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