| Full text | |
| Author(s): Show less - |
Pfenning, Andreas
[1, 2]
;
Hartmann, Fabian
[1, 2]
;
Sousa Dias, Mariama Rebello
[3]
;
Castelano, Leonardo Kleber
[3]
;
Suessmeier, Christoph
[1, 2]
;
Langer, Fabian
[1, 2]
;
Hoefling, Sven
[4, 1, 2]
;
Kamp, Martin
[1, 2]
;
Marques, Gilmer Eugenio
[3]
;
Worschech, Lukas
[1, 2]
;
Lopez-Richard, Victor
[3]
Total Authors: 11
|
| Affiliation: | [1] Univ Wurzburg, Phys, Tech Phys, D-97074 Wurzburg - Germany
[2] Wilhelm Conrad Rontgen Res Ctr Complex Mat Syst, D-97074 Wurzburg - Germany
[3] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Paulo - Brazil
[4] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife - Scotland
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | ACS NANO; v. 9, n. 6, p. 6271-6277, JUN 2015. |
| Web of Science Citations: | 15 |
| Abstract | |
Sensor miniaturization together with broadening temperature sensing range are fundamental challenges in nanothermometry. By exploiting a large temperature-dependent screening effect observed in a resonant tunneling diode in sequence with a GaInNAs/GaAs quantum well, we present a low dimensional, wide range, and high sensitive nanothermometer. This sensor shows a large threshold voltage shift of the bistable switching of more than 4.5 V for a temperature raise from 4.5 to 295 K, with a linear voltage temperature response of 19.2 mV K-1, and a temperature uncertainty in the millikelvin (mK) range. Also, when we monitor the electroluminescence emission spectrum, an optical read-out control of the thermometer is provided. The combination of electrical and optical read-outs together with the sensor architecture excel the device as a thermometer with the capability of noninvasive temperature sensing, high local resolution, and sensitivity. (AU) | |
| FAPESP's process: | 12/51415-3 - Network for nano-optics and nano-electronics |
| Grantee: | Victor Lopez Richard |
| Support type: | Regular Research Grants |
| FAPESP's process: | 13/24253-5 - Electronic and optical properties of quasi-two-dimensional nano-structutures and exfoliable systems |
| Grantee: | Diana Mercedes Meneses Gustin |
| Support type: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 12/13052-6 - Transport properties and quantum computation in nanostructures |
| Grantee: | Leonardo Kleber Castelano |
| Support type: | Regular Research Grants |