abstract

• We compared 9 × 9 arrays of bimetallic Ni(Nickel)-Pt(Platinum) nanoantennas for a classic and evolutive dipole configuration. We fabricated the nanoantennas by e-beam lithography and characterized them with a solar simulator to analyze the I - V curves. From these curves, a thermoelectric voltage dependence associated by classic and evolutive dipole configuration was observed. We show that the evolutive dipole nanoantennas (EDN) generate up to three times more voltage in contrast with the classic dipole nanoantenna (CDN). Indeed, the evolutive configuration is 1.3 times more efficient than its classical counterpart. The results are corroborated by absorbance of these nanoantennas in the 20 to 36 THz range, where EDN is 40%25 more efficient than CDN and 30%25 in the range of 36.1 to 90 THz. Moreover, the experimental results match the thermoelectric behavior obtained using numerical simulations. The EDN can be used in applications ranging from aerospace technology to energy harvesting, photodetector, and sensors, where high thermoelectric efficiency is needed. © 2019 Society of Photo-Optical Instrumentation Engineers (SPIE).

authors

• De León-Zapata R.D.
• González Contreras Francisco Javier
• González Contreras Gabriel
• Guevara Codina Edgar
• Méndez-Lozoya J.

publication date

• 2019-01-01

funding provided via

• Consejo Nacional de Ciencia y Tecnología, CONACYT: CEMIE-Sol 105  Grant
• Tecnológico Nacional de México, TNM: 278291  Grant

published in

• Journal of Nanophotonics  Journal

keywords

• classic dipole nanoantennas; evolutive dipole nanoantennas; thermoelectric effect Energy harvesting; Solar energy; Thermoelectricity; Absorbances; Aerospace technologies; Classical counterpart; Dipole configurations; e-Beam lithography; Solar simulator; Thermoelectric efficiency; Thermoelectric voltage; Nanoantennas

Digital Object Identifier (DOI)

• 10.1117/1.JNP.13.026005

start page

end page

volume

• 13

issue

• 2