A new thin film photochromic material: Oxygen-containing yttrium hydride

Trygve Mongstad; Charlotte Platzer-Björkman; Jan Petter Maehlen; Lennard P.A. Mooij; Yevheniy Pivak; Bernard Dam; Erik S. Marstein; Bjørn C. Hauback; Smagul Zh Karazhanov

doi:10.1016/j.solmat.2011.08.018

A new thin film photochromic material: Oxygen-containing yttrium hydride

Trygve Mongstad^*
, Charlotte Platzer-Björkman
, Jan Petter Maehlen
, Lennard P.A. Mooij
, Yevheniy Pivak
, Bernard Dam
, Erik S. Marstein
, Bjørn C. Hauback
, Smagul Zh Karazhanov

^*Corresponding author for this work

Institute for Energy Technology
Uppsala University
Delft University of Technology

Research output: Contribution to journal › Article › peer-review

123 Citations (Scopus)

Abstract

In this work we report on photochromism in transparent thin film samples of oxygen-containing yttrium hydride. Exposure to visible and ultraviolet (UV) light at moderate intensity triggers a decrease in the optical transmission of visible and infrared (IR) light. The photo-darkening is colour-neutral. We show that the optical transmission of samples of 500 nm thickness can be reduced by up to 50% after one hour of illumination with light of moderate intensity. The reaction is reversible and samples that are left in the dark return to the initial transparent state. The relaxation time in the dark depends on the temperature of the sample and the duration of the light exposure. The photochromic reaction takes place under ambient conditions in the as-deposited state of the thin-film samples.

Original language	English
Pages (from-to)	3596-3599
Number of pages	4
Journal	Solar Energy Materials and Solar Cells
Volume	95
Issue number	12
DOIs	https://doi.org/10.1016/j.solmat.2011.08.018
Publication status	Published - Dec 2011
Externally published	Yes

Keywords

Hydrogen
Photochromism
Photoconductivity
Sputter deposition
Thin films
Yttrium compounds

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10.1016/j.solmat.2011.08.018

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@article{1b889492aebb4eadaa9f26049e013da8,

title = "A new thin film photochromic material: Oxygen-containing yttrium hydride",

abstract = "In this work we report on photochromism in transparent thin film samples of oxygen-containing yttrium hydride. Exposure to visible and ultraviolet (UV) light at moderate intensity triggers a decrease in the optical transmission of visible and infrared (IR) light. The photo-darkening is colour-neutral. We show that the optical transmission of samples of 500 nm thickness can be reduced by up to 50\% after one hour of illumination with light of moderate intensity. The reaction is reversible and samples that are left in the dark return to the initial transparent state. The relaxation time in the dark depends on the temperature of the sample and the duration of the light exposure. The photochromic reaction takes place under ambient conditions in the as-deposited state of the thin-film samples.",

keywords = "Hydrogen, Photochromism, Photoconductivity, Sputter deposition, Thin films, Yttrium compounds",

author = "Trygve Mongstad and Charlotte Platzer-Bj{\"o}rkman and Maehlen, \{Jan Petter\} and Mooij, \{Lennard P.A.\} and Yevheniy Pivak and Bernard Dam and Marstein, \{Erik S.\} and Hauback, \{Bj{\o}rn C.\} and Karazhanov, \{Smagul Zh\}",

year = "2011",

month = dec,

doi = "10.1016/j.solmat.2011.08.018",

language = "English",

volume = "95",

pages = "3596--3599",

journal = "Solar Energy Materials and Solar Cells",

issn = "0927-0248",

publisher = "Elsevier B.V.",

number = "12",

}

TY - JOUR

T1 - A new thin film photochromic material

T2 - Oxygen-containing yttrium hydride

AU - Mongstad, Trygve

AU - Platzer-Björkman, Charlotte

AU - Maehlen, Jan Petter

AU - Mooij, Lennard P.A.

AU - Pivak, Yevheniy

AU - Dam, Bernard

AU - Marstein, Erik S.

AU - Hauback, Bjørn C.

AU - Karazhanov, Smagul Zh

PY - 2011/12

Y1 - 2011/12

N2 - In this work we report on photochromism in transparent thin film samples of oxygen-containing yttrium hydride. Exposure to visible and ultraviolet (UV) light at moderate intensity triggers a decrease in the optical transmission of visible and infrared (IR) light. The photo-darkening is colour-neutral. We show that the optical transmission of samples of 500 nm thickness can be reduced by up to 50% after one hour of illumination with light of moderate intensity. The reaction is reversible and samples that are left in the dark return to the initial transparent state. The relaxation time in the dark depends on the temperature of the sample and the duration of the light exposure. The photochromic reaction takes place under ambient conditions in the as-deposited state of the thin-film samples.

AB - In this work we report on photochromism in transparent thin film samples of oxygen-containing yttrium hydride. Exposure to visible and ultraviolet (UV) light at moderate intensity triggers a decrease in the optical transmission of visible and infrared (IR) light. The photo-darkening is colour-neutral. We show that the optical transmission of samples of 500 nm thickness can be reduced by up to 50% after one hour of illumination with light of moderate intensity. The reaction is reversible and samples that are left in the dark return to the initial transparent state. The relaxation time in the dark depends on the temperature of the sample and the duration of the light exposure. The photochromic reaction takes place under ambient conditions in the as-deposited state of the thin-film samples.

KW - Hydrogen

KW - Photochromism

KW - Photoconductivity

KW - Sputter deposition

KW - Thin films

KW - Yttrium compounds

UR - https://www.scopus.com/pages/publications/80053593386

U2 - 10.1016/j.solmat.2011.08.018

DO - 10.1016/j.solmat.2011.08.018

M3 - Article

AN - SCOPUS:80053593386

SN - 0927-0248

VL - 95

SP - 3596

EP - 3599

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

IS - 12

ER -

A new thin film photochromic material: Oxygen-containing yttrium hydride

Abstract

Keywords

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