Nanothermometer based on resonant tunneling diodes : from cryogenic to room temperatures
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.
Citation
Pfenning , A , Hartmann , F , Rebello Sousa Dias , M , Castelano , L K , Süßmeier , C , Langer , F , Höfling , S , Kamp , M , Marques , G E , Worschech , L & Lopez-Richard , V 2015 , ' Nanothermometer based on resonant tunneling diodes : from cryogenic to room temperatures ' , ACS Nano , vol. 9 , no. 6 , pp. 6271-6277 . https://doi.org/10.1021/acsnano.5b01831
Publication
ACS Nano
Status
Peer reviewed
ISSN
1936-0851Type
Journal article
Description
The authors are grateful for financial support by the BMBF via national project EIPHRIK (FKZ: 13N10710), the European Union (FPVII (2007-2013) under grant agreement No. 256959 NANOPOWER and No. 318287 LANDAUER), and the Brazilian Agencies FAPESP (2013/24253-5, 2012/13052-6, and 2012/51415-3), CNPq and CAPES.Collections
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