The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Li4Ti5O12: A Visible‐to‐Infrared Broadband Electrochromic Material for Optical and Thermal Management
Open accessAbstract
Broadband electrochromism from visible to infrared wavelengths is attractive for applications like smart windows, thermal camouflage, and temperature control. In this work, the broadband electrochromic properties of Li 4 Ti 5 O 12 (LTO) and its suitability for infrared camouflage and thermoregulation are investigated. Upon Li+ intercalation, LTO changes from a wide bandgap semiconductor to a metal, causing LTO nanoparticles on metal to transition from a super‐broadband optical reflector to a solar absorber and thermal emitter. Large tunabilities of 0.74, 0.68, and 0.30 are observed for the solar reflectance, mid‐wave infrared (MWIR) emittance, and long‐wave infrared (LWIR) emittance, respectively, with a tunability of 0.43 observed for a wavelength of 10 µm. The values exceed, or are comparable to notable performances in the literature. A promising cycling stability is also observed. MWIR and LWIR thermography reveal that the emittance of LTO‐based electrodes can be electrochemically tuned to conceal them amidst their environment. Moreover, under different sky conditions, LTO shows promising solar heating and subambient radiative cooling capabilities depending on the degree of lithiation and device design. The demonstrated capabilities of LTO make electrochromic devices based on LTO highly promising for infrared‐camouflage applications in the defense sector, and for thermoregulation in space and terrestrial environments.
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Cites
Ab initio studies of structural and electronic properties of Li4Ti5O12 spinel
Ouyang, C. Y., Zhong, Z. Y., & Lei, M. S. (2007) · Electrochemistry Communications · doi:10.1016/j.elecom.2007.01.013 · Cited by 282
Cited by
Porous Polymers with Switchable Optical Transmittance for Optical and Thermal Regulation
Mandal, J., Jia, M., Overvig, A., Fu, Y., Che, E., Yu, N., & Yang, Y. (2019) · Joule · doi:10.1016/j.joule.2019.09.016 · Cited by 361
Self-citationManipulating metals for adaptive thermal camouflage
Li, M., Liu, D., Cheng, H., Peng, L., & Zu, M. (2020) · Science Advances · doi:10.1126/sciadv.aba3494 · Cited by 319
Smart Materials for Dynamic Thermal Radiation Regulation
Wei, H., Gu, J., Ren, F., Zhang, L., Xu, G., Wang, B., Song, S., Zhao, J., Dou, S., & Li, Y. (2021) · Small · doi:10.1002/smll.202100446 · Cited by 168
Nam, J., Chang, I., Lim, J., Woo, H., Yook, J., & Cho, H. H. (2023) · Small · doi:10.1002/smll.202302848 · Cited by 38
Metadata
- Authors
- Mandal, J., Du, S., Dontigny, M., Zaghib, K., Yu, N., & Yang, Y.
- Venue
- Advanced Functional Materials
- Publisher
- Wiley
- Published
- 2018-07-31
- Volume
- 28
- Issue
- 36
- ISSN
- 1616-301X (ISSN-L)
- 1616-3028
- OpenAlex
- W2886447524
- Cited by
- 223
- References
- 1
- FWCI
- 7.54
- Type
- journal article
- Language
- en
- Open access
- green
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- Mandal, J., Du, S., Dontigny, M., Zaghib, K., Yu, N., & Yang, Y. (2018). Li4Ti5O12: A Visible‐to‐Infrared Broadband Electrochromic Material for Optical and Thermal Management. Advanced Functional Materials. https://doi.org/10.1002/adfm.201802180
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