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Modification of the...
Modification of the Photochromic Properties of Oxygen-Containing Yttrium Hydride by Irradiation with keV and MeV Ions
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- Moldarev, Dmitrii (författare)
- Uppsala universitet,Materialfysik
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- Wolff, Max (författare)
- Uppsala universitet,Materialfysik
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- Primetzhofer, Daniel (författare)
- Uppsala universitet,Tillämpad kärnfysik
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(creator_code:org_t)
- American Chemical Society (ACS), 2023
- 2023
- Engelska.
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Ingår i: The Journal of Physical Chemistry C. - : American Chemical Society (ACS). - 1932-7447 .- 1932-7455. ; 127:51, s. 24676-24682
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Abstract
Ämnesord
Stäng
- The effect of irradiation using energetic ions on the optical properties of photochromic YHO was studied. Films were exposed to different fluences (Phi); projectiles and their primary energies were chosen such that a wide range of ratios between energies transferred to electron and nuclear systems is covered. Structural modifications are found to induce a decrease in transmittance, magnitude of the photochromic response, and the bleaching kinetics. For irradiation with 330 keV Ne+, X-ray diffraction revealed changes in the microstructure such as grain growth for higher fluences explaining the observed persistency of changes in optical properties after irradiation. On the other hand, the degradation of photochromic properties was found to be reversible for Phi = 1 x 10(15) cm(-2). The results indicate that grain boundary diffusion is necessary for the photochromic reaction.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
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