Interfacial rearrangements and strain evolution in the thin film growth of ZnPc on glass

We report on the characterization of the growth of vacuum-deposited zinc phthalocyanine (ZnPc) thin films on glass through a combination of in situ grazing incidence x-ray scattering, x-ray reflectivity, and atomic force microscopy. We found that the growth at room temperature proceeds via the forma...

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Main Authors: Derrien, TL, Lauritzen, AE, Kaienburg, P, Hancox, E, Nicklin, C, Riede, MK
Format: Journal article
Jezik:English
Izdano: American Physical Society 2022
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author Derrien, TL
Lauritzen, AE
Kaienburg, P
Hancox, E
Nicklin, C
Riede, MK
author_facet Derrien, TL
Lauritzen, AE
Kaienburg, P
Hancox, E
Nicklin, C
Riede, MK
author_sort Derrien, TL
collection OXFORD
description We report on the characterization of the growth of vacuum-deposited zinc phthalocyanine (ZnPc) thin films on glass through a combination of in situ grazing incidence x-ray scattering, x-ray reflectivity, and atomic force microscopy. We found that the growth at room temperature proceeds via the formation of two structurally unique substrate-induced interfacial layers, followed by the growth of the γ -ZnPc polymorph thereafter (thickness ≈ 1.0 nm). As the growth of the bulk γ -ZnPc progresses, a substantial out-of-plane lattice strain ( ≈ 15 % relative to γ -ZnPc powder) is continually relaxed during the thin film growth. The rate of strain relaxation was slowed after a thickness of ≈ 13 nm, corresponding to the transition from layer growth to island growth. The findings reveal the real-time microstructural evolution of ZnPc and highlight the importance of substrate-induced strain on thin film growth.
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spelling oxford-uuid:ed25ad31-825b-4b4e-bd50-bc18df1c622b2022-04-01T14:08:23ZInterfacial rearrangements and strain evolution in the thin film growth of ZnPc on glassJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ed25ad31-825b-4b4e-bd50-bc18df1c622bEnglishSymplectic ElementsAmerican Physical Society2022Derrien, TLLauritzen, AEKaienburg, PHancox, ENicklin, CRiede, MKWe report on the characterization of the growth of vacuum-deposited zinc phthalocyanine (ZnPc) thin films on glass through a combination of in situ grazing incidence x-ray scattering, x-ray reflectivity, and atomic force microscopy. We found that the growth at room temperature proceeds via the formation of two structurally unique substrate-induced interfacial layers, followed by the growth of the γ -ZnPc polymorph thereafter (thickness ≈ 1.0 nm). As the growth of the bulk γ -ZnPc progresses, a substantial out-of-plane lattice strain ( ≈ 15 % relative to γ -ZnPc powder) is continually relaxed during the thin film growth. The rate of strain relaxation was slowed after a thickness of ≈ 13 nm, corresponding to the transition from layer growth to island growth. The findings reveal the real-time microstructural evolution of ZnPc and highlight the importance of substrate-induced strain on thin film growth.
spellingShingle Derrien, TL
Lauritzen, AE
Kaienburg, P
Hancox, E
Nicklin, C
Riede, MK
Interfacial rearrangements and strain evolution in the thin film growth of ZnPc on glass
title Interfacial rearrangements and strain evolution in the thin film growth of ZnPc on glass
title_full Interfacial rearrangements and strain evolution in the thin film growth of ZnPc on glass
title_fullStr Interfacial rearrangements and strain evolution in the thin film growth of ZnPc on glass
title_full_unstemmed Interfacial rearrangements and strain evolution in the thin film growth of ZnPc on glass
title_short Interfacial rearrangements and strain evolution in the thin film growth of ZnPc on glass
title_sort interfacial rearrangements and strain evolution in the thin film growth of znpc on glass
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AT lauritzenae interfacialrearrangementsandstrainevolutioninthethinfilmgrowthofznpconglass
AT kaienburgp interfacialrearrangementsandstrainevolutioninthethinfilmgrowthofznpconglass
AT hancoxe interfacialrearrangementsandstrainevolutioninthethinfilmgrowthofznpconglass
AT nicklinc interfacialrearrangementsandstrainevolutioninthethinfilmgrowthofznpconglass
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