Influence of thickness and microstructure on thermoelectric properties of Mg-doped CuCrO2 delafossite thin films deposited by RF-magnetron sputtering

Abstract

Influence of thickness and microstructure on thermoelectric properties of Mgdoped CuCrO2 delafossite thin films deposited by RF-magnetron sputtering. (2018) Applied Surface Science, 455. 244-250.

Thermodynamic and Structural Properties of CuCrO2 and CuCr2O4: Experimental Investigation and Phase Equilibria Modeling of the Cu–Cr–O System

“…Although this spinel phase is known to be stable at a lower temperature, this result shows that is necessary to reach 700− 750 °C to thermally activate the reaction between CuO and Cr 2 O 3 and form CuCr 2 O 4 . 8,19 At this temperature, the spinel phase exhibits a cubic symmetry…”

Assessment of thermodynamic data for CuCrO2 delafossite from calorimetric measurements

“…Among them, the cuprous chromite CuCrO 2 , also named "Mac Connellite" in its mineral form and sometimes noted as Cu 2 Cr 2 O 4 in older works, is one of the most promising candidates for transparent ptype conducting oxide in optoelectronic devices [1][2][3]. This compound is also of interest for its catalyst/photocatalytic [4,5] and thermoelectric applications [6][7][8]. Moreover, the CuCrO 2 phase presents remarkable physical properties such as multiferroic behavior [9,10] at low temperatures.…”

Microstructural and transport properties of Mg doped CuFeO2 thin films: A promising material for high accuracy miniaturized temperature sensors based on the Seebeck effect

“…In addition, it is interesting to note on GIXRD pattern that the peak (006) of the CuFeO 2 :Mg appears with an expected relative intensity for the delafossite structure, in contrary to the CuCrO 2 :Mg thin films studied in our previous works [8,9] for which, there was an absence of crystallite oriented along the c ! axis.…”

“…Delafossite compounds received much attention thanks to their good p type transparent conducting oxide properties (2 ], their unexpected magnetic [ 3] and conducting properties (4,5]. In the last decade, they showed also interesting thermoelectric properties due to their relatively high Seebeck coeffiàent (6)(7)(8)(9).…”