Time-resolved Fluorescence Decay Analysis of Photoresist Film by GaN LD Pumped Single-Photon Counting Method
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- Kaji Makoto
- Hitachi Chemical Co., Ltd., Electronic Materials R&D Center
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- Muramatsu Yukiko
- Hitachi Chemical Co., Ltd., Electronic Materials R&D Center
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- Nishimura Yoshinobu
- University of Tsukuba, Graduate School of Pure and Applied Science
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- Arai Tatsuo
- University of Tsukuba, Graduate School of Pure and Applied Science
Bibliographic Information
- Other Title
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- Time-resolved fluorescence decay analysis of photoresis film by GaN LD pumped single-photon counting method
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Abstract
In order to study photoinitiating mechanism of photochemically initiated radical polymerization in thick negative photoresist, fluorescence lifetime analyses of dry film photoresist were conducted by gallium nitride semiconducter laser pumped single-photon counting method. Lifetimes of photosensitizers, 4-methyl-7-(N,N-diethyl)aminocoumarin (C1), 4,4'-(N,N,N',N'-tetraethy)aminobenzophenon (EAB), 1-phenyl -3-[2-(4''-t-butylphenyl)vinyl]-5-(4'''-t-butyl) phenylpyrazoline (Pyraz) or 9,10-di-n-butoxyanthracene in film resists with and without photoinitiator, 2,2'-bis (σ-methylphenyl)-4,4',5,5'-tetraphenyl- imidazole (Me-HABI), as a quencher were successfully obtained. Quenching efficiencies, η, defined as 1-(τ/τ0), were compared with photoinitiaing efficiencies which were obtained by RT-FTIR measurement of double bond disappearance and photospeed determined by gray scale step method. From correlation between quenching efficiencies and photoinitiating efficiencies in an extent, it was elucidated that the singlet excited state of photosensitizer seems to involve in the photoinitiation process as an important process.
Journal
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- Journal of Photopolymer Science and Technology
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Journal of Photopolymer Science and Technology 20 (2), 265-269, 2007
The Society of Photopolymer Science and Technology(SPST)
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Keywords
Details 詳細情報について
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- CRID
- 1390001204324252672
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- NII Article ID
- 130004464540
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- NII Book ID
- AA11576862
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- COI
- 1:CAS:528:DC%2BD2sXot1Wnurw%3D
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- ISSN
- 13496336
- 09149244
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- NDL BIB ID
- 8918875
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed