Terbium-Doped VO2 Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance
Vanadium dioxide (VO2) is a well-known thermochromic material with large IR modulating ability, promising for energy-saving smart windows. The main drawbacks of VO2 are its high phase transition temperature (τc = 68 °C), low luminous transmission (Tlum), and weak solar modulating ability (ΔTsol). In...
| Main Authors: | , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2016
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/84947 http://hdl.handle.net/10220/40490 |
| _version_ | 1826122342845120512 |
|---|---|
| author | Wang, Ning Duchamp, Martial Dunin-Borkowski, Rafal E. Liu, Shiyu Zeng, Xianting Cao, Xun Long, Yi |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Wang, Ning Duchamp, Martial Dunin-Borkowski, Rafal E. Liu, Shiyu Zeng, Xianting Cao, Xun Long, Yi |
| author_sort | Wang, Ning |
| collection | NTU |
| description | Vanadium dioxide (VO2) is a well-known thermochromic material with large IR modulating ability, promising for energy-saving smart windows. The main drawbacks of VO2 are its high phase transition temperature (τc = 68 °C), low luminous transmission (Tlum), and weak solar modulating ability (ΔTsol). In this paper, the terbium cation (Tb3+) doping was first reported to reduce τc and increase Tlum of VO2 thin films. Compared with pristine VO2, 2 at. % doping level gives both enhanced Tlum and ΔTsol from 45.8% to 54.0% and 7.7% to 8.3%, respectively. The Tlum increases with continuous Tb3+ doping and reaches 79.4% at 6 at. % doping level, representing ∼73.4% relative increment compared with pure VO2. This has surpassed the best reported doped VO2 thin films. The enhanced thermochromic properties is meaningful for smart window applications of VO2 materials. |
| first_indexed | 2024-10-01T05:46:56Z |
| format | Journal Article |
| id | ntu-10356/84947 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:46:56Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/849472020-09-26T22:10:59Z Terbium-Doped VO2 Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance Wang, Ning Duchamp, Martial Dunin-Borkowski, Rafal E. Liu, Shiyu Zeng, Xianting Cao, Xun Long, Yi School of Materials Science & Engineering A*STAR SIMTech Vanadium dioxide Terbium-doping Thermochromic properties Sol-gel Smart windows Vanadium dioxide (VO2) is a well-known thermochromic material with large IR modulating ability, promising for energy-saving smart windows. The main drawbacks of VO2 are its high phase transition temperature (τc = 68 °C), low luminous transmission (Tlum), and weak solar modulating ability (ΔTsol). In this paper, the terbium cation (Tb3+) doping was first reported to reduce τc and increase Tlum of VO2 thin films. Compared with pristine VO2, 2 at. % doping level gives both enhanced Tlum and ΔTsol from 45.8% to 54.0% and 7.7% to 8.3%, respectively. The Tlum increases with continuous Tb3+ doping and reaches 79.4% at 6 at. % doping level, representing ∼73.4% relative increment compared with pure VO2. This has surpassed the best reported doped VO2 thin films. The enhanced thermochromic properties is meaningful for smart window applications of VO2 materials. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2016-05-04T03:37:10Z 2019-12-06T15:54:10Z 2016-05-04T03:37:10Z 2019-12-06T15:54:10Z 2016 2016 Journal Article Wang, N., Duchamp, M., Dunin-Borkowski, R. E., Liu, S., Zeng, X., Cao, X., et al. (2016). Terbium-Doped VO2 Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance. Langmuir, 32(3), 759-764. 0743-7463 https://hdl.handle.net/10356/84947 http://hdl.handle.net/10220/40490 10.1021/acs.langmuir.5b04212 191627 en Langmuir © 2016 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by Langmuir, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1021/acs.langmuir.5b04212]. 22 p. application/pdf |
| spellingShingle | Vanadium dioxide Terbium-doping Thermochromic properties Sol-gel Smart windows Wang, Ning Duchamp, Martial Dunin-Borkowski, Rafal E. Liu, Shiyu Zeng, Xianting Cao, Xun Long, Yi Terbium-Doped VO2 Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance |
| title | Terbium-Doped VO2 Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance |
| title_full | Terbium-Doped VO2 Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance |
| title_fullStr | Terbium-Doped VO2 Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance |
| title_full_unstemmed | Terbium-Doped VO2 Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance |
| title_short | Terbium-Doped VO2 Thin Films: Reduced Phase Transition Temperature and Largely Enhanced Luminous Transmittance |
| title_sort | terbium doped vo2 thin films reduced phase transition temperature and largely enhanced luminous transmittance |
| topic | Vanadium dioxide Terbium-doping Thermochromic properties Sol-gel Smart windows |
| url | https://hdl.handle.net/10356/84947 http://hdl.handle.net/10220/40490 |
| work_keys_str_mv | AT wangning terbiumdopedvo2thinfilmsreducedphasetransitiontemperatureandlargelyenhancedluminoustransmittance AT duchampmartial terbiumdopedvo2thinfilmsreducedphasetransitiontemperatureandlargelyenhancedluminoustransmittance AT duninborkowskirafale terbiumdopedvo2thinfilmsreducedphasetransitiontemperatureandlargelyenhancedluminoustransmittance AT liushiyu terbiumdopedvo2thinfilmsreducedphasetransitiontemperatureandlargelyenhancedluminoustransmittance AT zengxianting terbiumdopedvo2thinfilmsreducedphasetransitiontemperatureandlargelyenhancedluminoustransmittance AT caoxun terbiumdopedvo2thinfilmsreducedphasetransitiontemperatureandlargelyenhancedluminoustransmittance AT longyi terbiumdopedvo2thinfilmsreducedphasetransitiontemperatureandlargelyenhancedluminoustransmittance |