Top, I;
Schläfer, J;
Binions, R;
Papakonstantinou, I;
Srimurugananthan, S;
Powell, M;
Parkin, I;
... Abrahams, I; + view all
(2018)
The Effect of Alkali Metal (Na, K) Doping on Thermochromic Properties of VO2 Films.
MRS Advances
, 3
(32)
pp. 1863-1869.
10.1557/adv.2018.70.
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Abstract
This work reports the synthesis of undoped and alkali metal doped thermochromic vanadium dioxide thin films by sol-gel spin coating and subsequent low-temperature annealing at 450 °C in N 2 -H 2 atmosphere. The effect of sodium and potassium on the phase transition temperature as well as on the solar modulations were investigated. A dopant concentration of 0.3 at% resulted in a reduction of the critical transition temperature (T c ) from 62 °C to 57 °C and 47 °C for the sodium and potassium doped films, respectively. Moreover, both dopants improved the solar modulations (ΔT sol ) of the undoped VO 2 films from 3.81 to 9.44 and 5.43 %, respectively.
| Type: | Article |
|---|---|
| Title: | The Effect of Alkali Metal (Na, K) Doping on Thermochromic Properties of VO2 Films |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1557/adv.2018.70 |
| Publisher version: | https://doi.org/10.1557/adv.2018.70 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10046754 |
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