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. 2019 Nov 8;9:16335. doi: 10.1038/s41598-019-52654-z

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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(a) Real-time monitoring of the temperature-sensing diode voltages (curves 2 and 3 correspond to diodes 2 and 3 in Fig. 3) after the cryostat temperature controller is set to 5° temperature increase at t = 0 and after the heater 1 in Fig. 3 is energised at t = 90 s. The diode voltages and ΔV (curve 1) are read with a 16 bit analog-to-digital converter (Analog Devices AD7792). (b) Voltage monitoring during Seebeck coefficient measurements in regular-QD sample at T = 243 K. Circles - experimental data. Line is a linear fit to the data yielding S = 0.223 mV/K.