Solvothermal Synthesis of In_2−xCo_xO₃ (0.05 ≤ x ≤ 0.15) Dilute Magnetic Semiconductors: Optical, Magnetic, and Dielectric Properties

Abstract

Highly crystalline and monophasic nanoparticles of In 2Àx Co x O 3 (0.05 ≤ x ≤ 0.15) were successfully synthesized by the solvothermal method through an oxalate precursor route. Collective evidence from X-ray diffraction and reflectance measurements suggest that the Co 2+ is incorporated into the In 2 O 3 lattice site. Effect of cobalt dopant on the growth and morphology of indium oxide was studied by transmission electron microscopy. It has been observed that particle size decreases from 23 to 9 nm on increasing the Co concentration. High surface area has been obtained, with values ranging between 66 and 151 m 2 /g, respectively. Values for the dielectric constant were around 40. All these solid solutions show paramagnetic behavior with weak antiferromagnetic interactions.

Room-temperature ferromagnetic and photoluminescence properties of indium–tin-oxide nanoparticles synthesized by solid-state reaction

“…In the past one and half decades many researchers developed DMS materials with various host semiconductors such as titanium dioxide, copper oxide, indium oxide, tin oxide, etc. [3][4][5][6][7][8][9]. The oxide-based DMS exhibited ferromagnetism at room temperature, whereas the alloy-based DMS exhibited ferromagnetism at lower temperatures.…”

Structural characterization and properties of nanocrystalline Sn1−xCoxO2 based dilute magnetic semiconductors

“…2,4 The v M versus temperature curve for Sn 0.85 Co 0. 15 of antiferromagnetic ordering. This antiferromagnetic ordering may arise due to the presence of minute amount of Co 3 O 4 .…”

“…Also, the Co dopant can inhibit the growth of crystallite and play an important role in the optical properties. Therefore, we have chosen the oxalate precursor mediated modified solvothermal method [14][15][16][17] to synthesize Co-doped SnO 2 nanoparticles at low temperature (600°C). Recently, this route was applied for the successful preparation of Mn-doped SnO 2 nanoparticles.…”

Deposition and characteristics of PbS thin films by an in-situ solution chemical reaction process

“…ACCEPTED MANUSCRIPT 4 Recently, an in-situ solution chemical reaction deposition had been suggested by our laboratory for preparation of CdS thin films [41][42][43]. Here, we developed the deposition method to prepare PbS thin films.…”