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Reversible photodoping of TiO2 nanoparticles

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Reversible photodoping of TiO2 nanoparticles. / Joost, Urmas; Sutka, Andris; Oja, Marek; Smits, Krisjanis; Doebelin, Nicola; Loot, Ardi; Järvekülg, Martin; Hirsimäki, Mika; Valden, Mika; Nommiste, Ergo.

In: Chemistry of Materials, Vol. 30, No. 24, 26.12.2018, p. 8968-8974.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Joost, U, Sutka, A, Oja, M, Smits, K, Doebelin, N, Loot, A, Järvekülg, M, Hirsimäki, M, Valden, M & Nommiste, E 2018, 'Reversible photodoping of TiO2 nanoparticles', Chemistry of Materials, vol. 30, no. 24, pp. 8968-8974. https://doi.org/10.1021/acs.chemmater.8b04813

APA

Joost, U., Sutka, A., Oja, M., Smits, K., Doebelin, N., Loot, A., ... Nommiste, E. (2018). Reversible photodoping of TiO2 nanoparticles. Chemistry of Materials, 30(24), 8968-8974. https://doi.org/10.1021/acs.chemmater.8b04813

Vancouver

Joost U, Sutka A, Oja M, Smits K, Doebelin N, Loot A et al. Reversible photodoping of TiO2 nanoparticles. Chemistry of Materials. 2018 Dec 26;30(24):8968-8974. https://doi.org/10.1021/acs.chemmater.8b04813

Author

Joost, Urmas ; Sutka, Andris ; Oja, Marek ; Smits, Krisjanis ; Doebelin, Nicola ; Loot, Ardi ; Järvekülg, Martin ; Hirsimäki, Mika ; Valden, Mika ; Nommiste, Ergo. / Reversible photodoping of TiO2 nanoparticles. In: Chemistry of Materials. 2018 ; Vol. 30, No. 24. pp. 8968-8974.

Bibtex - Download

@article{9424213af2bb4d33a65461a4be3289c3,
title = "Reversible photodoping of TiO2 nanoparticles",
abstract = "Observations on strong photochromic effect of crystalline TiO2 quantum dots (mean size ≈ 4 nm) are presented. The synthesized quantum dots consist of irregularly shaped anatase TiO2 nanoparticles (NPs) and are dispersed in butanol (8 {\%} by mass). Obtained NPs exhibit a dramatic photo-response to UV light, enabling effective transmittance modula-tion of in a broad wavelength range extending from visible to near-infrared region, and even the thermal black body radiation regime beyond 10 μm. The exceptional photo-response is attributed to hole-scavenging by butanol, TiO2 self-reduction, injection of electrons to the conduction band, and consequent localized surface plasmon resonances in NPs. Observed optical effect is reversible and the initial high transmittance state can be restored simply by exposing the NPs to air. Applied NP synthesis route is economic and can be easily scaled for applications such as smart window technol-ogies.",
keywords = "tio2, nano, nanoparticle, photochromic, anatase, light, photonics, functional",
author = "Urmas Joost and Andris Sutka and Marek Oja and Krisjanis Smits and Nicola Doebelin and Ardi Loot and Martin J{\"a}rvek{\"u}lg and Mika Hirsim{\"a}ki and Mika Valden and Ergo Nommiste",
note = "INT=fot,{"}Joost, Urmas{"}",
year = "2018",
month = "12",
day = "26",
doi = "10.1021/acs.chemmater.8b04813",
language = "English",
volume = "30",
pages = "8968--8974",
journal = "Chemistry of Materials",
issn = "0897-4756",
publisher = "American Chemical Society",
number = "24",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Reversible photodoping of TiO2 nanoparticles

AU - Joost, Urmas

AU - Sutka, Andris

AU - Oja, Marek

AU - Smits, Krisjanis

AU - Doebelin, Nicola

AU - Loot, Ardi

AU - Järvekülg, Martin

AU - Hirsimäki, Mika

AU - Valden, Mika

AU - Nommiste, Ergo

N1 - INT=fot,"Joost, Urmas"

PY - 2018/12/26

Y1 - 2018/12/26

N2 - Observations on strong photochromic effect of crystalline TiO2 quantum dots (mean size ≈ 4 nm) are presented. The synthesized quantum dots consist of irregularly shaped anatase TiO2 nanoparticles (NPs) and are dispersed in butanol (8 % by mass). Obtained NPs exhibit a dramatic photo-response to UV light, enabling effective transmittance modula-tion of in a broad wavelength range extending from visible to near-infrared region, and even the thermal black body radiation regime beyond 10 μm. The exceptional photo-response is attributed to hole-scavenging by butanol, TiO2 self-reduction, injection of electrons to the conduction band, and consequent localized surface plasmon resonances in NPs. Observed optical effect is reversible and the initial high transmittance state can be restored simply by exposing the NPs to air. Applied NP synthesis route is economic and can be easily scaled for applications such as smart window technol-ogies.

AB - Observations on strong photochromic effect of crystalline TiO2 quantum dots (mean size ≈ 4 nm) are presented. The synthesized quantum dots consist of irregularly shaped anatase TiO2 nanoparticles (NPs) and are dispersed in butanol (8 % by mass). Obtained NPs exhibit a dramatic photo-response to UV light, enabling effective transmittance modula-tion of in a broad wavelength range extending from visible to near-infrared region, and even the thermal black body radiation regime beyond 10 μm. The exceptional photo-response is attributed to hole-scavenging by butanol, TiO2 self-reduction, injection of electrons to the conduction band, and consequent localized surface plasmon resonances in NPs. Observed optical effect is reversible and the initial high transmittance state can be restored simply by exposing the NPs to air. Applied NP synthesis route is economic and can be easily scaled for applications such as smart window technol-ogies.

KW - tio2

KW - nano

KW - nanoparticle

KW - photochromic

KW - anatase

KW - light

KW - photonics

KW - functional

U2 - 10.1021/acs.chemmater.8b04813

DO - 10.1021/acs.chemmater.8b04813

M3 - Article

VL - 30

SP - 8968

EP - 8974

JO - Chemistry of Materials

JF - Chemistry of Materials

SN - 0897-4756

IS - 24

ER -