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Notable researchers
There are several researchers in nanochemistry that have been credited with development of the field. Geoffrey A. Ozin, from the University of Toronto, is known as one of the “founding fathers of Nanochemistry” due to his four and a half decades of research on this subject. This research includes the study of Matrix isolation laser Raman spectroscopy, naked metal clusters chemistry and photochemistry, nanoporous materials, hybrid nanomaterials, mesoscopic materials, and ultrathin inorganic nanowires.[1]
Another chemist who is also viewed as one of nanochemistry's pioneers is Charles M. Lieber at Harvard University. He is known for his contributions in the development of nano-scale technologies, particularly in the field of biology and medicine. The technologies include nanowires, a new class of quasi-one dimentional materials that have demonstrated superior electrical, optical, mechanical, and thermal properties and can be used potentially as biological sensors.[2] Research under Lieber has delved into the use of nanowires for the purpose of mapping brain activity.
Shimon Weiss, a professor at the University of California, Los Angeles, is known for his research of fluorescent semiconductior nanocrystals, a subclass of quantum dots, for the purpose of biological labeling. Paul Alivisatos, from the University of California Berkley, is also notable for his research on the fabrication and use of nanocrystals. This research has the potential to develop insight into the mechanisms of small scale particles such as the process of nucleation, cation exchange, and branching. A notable application of these crystals is the development of quantum dots.
Peidong Yang, another researcher from the University of California, Berkley, is also notable for his contributions to the development of 1-dimensional nanostructures. Currently, the Yang group has active research projects in the areas of nanowire photonics, nanowire-based solar cells, nanowires for solar to fuel conversion, nanowire thermoelectrics, nanowire-cell interface, nanocrystal catalysis, nanotube nanofluidics, and plasmonics.
Nanometer-size clusters
Monodispurse, nanometer-size clusters (also known as nanoclusters) are synthetically grown crystals whose size and structure influence their properties through the effects of quantum confinement. One method of growing these crystals is through inverse micellar cages in non aqueous solvents. [5] Research conducted on the optical properties of MoS2 nanoclusters compared them to their bulk crystal counterparts and analyzed their absorbance spectra. The analysis reveals that size dependence of the absorbance spectrum by bulk crystals is continuous, whereas the absorbance spectrum of nanoclusters takes on discrete energy levels. This indicates a shift from solid-like to molecular-like behavior which occurs at a reported cluster size of 4.5 – 3.0 nm. [5]
Interest in the magnetic properties of nanoclusters exists due to their potential use in magnetic recording, magnetic fluids, permanent magnets, and catalysis. [5] Analysis of Fe clusters shows behavior consistent with ferromagnetic or superparamagnetic behavior due to strong magnetic interactions within clusters. [5]
Dielectric properties of nanoclusters are also a subject interest due to their possible applications in catalysis, photocatalysis, microcapacitors, microelectronics, and nonlinear optics.
[4] Nanochemistry Views (2014): n. pag. Artnanoinnovations. Web. 24 Oct. 2016
[5] Wilcoxon, J.p., P.p. Newcomer, G.a. Samara, E.l. Venturini, and R.l. Williamson. "Fundamental Science of Nanometer-size Clusters." (1995): n. pag. Web. 25 Oct. 2016
[9] Wang, Zhong Lin. Nanowires and Nanobelts: Materials, Properties and Devices. New York: Springer, ., 2006. Print
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