Selective metal deposition for a structure with a thin intermediate layer on a photochromic diarylethene film

Masui, Keijiro; Takagi, Ryukichi; Sesumi, Yusuke; Nakamura, Shinichiro; Tsujioka, Tsuyoshi

doi:10.1039/b820408j

Cited by 12 publications

(9 citation statements)

References 20 publications

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“…Figure 79 shows selective Mg deposition. 853 The metal vapor is deposited only on the colored part. No metal deposition was observed on the surface of the open-ring isomer.…”

Section: Selective Metal Depositionmentioning

confidence: 99%

“…Selective metal deposition means that metal vapor atoms are deposited selectively on a hard diarylethene surface but not on a soft surface. Tsujioka and co-workers − found that metal atoms are selectively deposited on photochromic diarylethene (1,2-bis[2-methyl-5-(5-trimethylsilyl-2-thienyl)-3-thienyl]perfluorocyclopentene ( 471 )) film depending on the photoisomerization state. Figure shows selective Mg deposition .…”

Section: Surface Propertiesmentioning

confidence: 99%

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Photochromism of Diarylethene Molecules and Crystals: Memories, Switches, and Actuators

et al. 2014

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“…Figure 79 shows selective Mg deposition. 853 The metal vapor is deposited only on the colored part. No metal deposition was observed on the surface of the open-ring isomer.…”

Section: Selective Metal Depositionmentioning

confidence: 99%

Section: Surface Propertiesmentioning

confidence: 99%

Photochromism of Diarylethene Molecules and Crystals: Memories, Switches, and Actuators

et al. 2014

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“…Mg is an important cathode material in organic electronics, 1315 and therefore the selective Mg deposition can be applied to fine cathode preparation for organic devices. 16,17 For a variety of industrial applications containing electronics and optics, the selective deposition of various metal species is desirable. We report here the selective deposition of Zn and Mn as well as Mg, and demonstrate metal pattering controlled by light irradiation with maskless vapor deposition.…”

mentioning

confidence: 99%

Light-Controlled Selective Metal Deposition on a Photochromic Diarylethene Film—Toward New Applications in Electronics and Photonics—

Sesumi¹,

Yokojima²,

Nakamura³

et al. 2010

Bulletin of the Chemical Society of Japan

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Selective metal deposition controlled by light irradiation was achieved for Zn, Mg, and Mn on a photochromic diarylethene (DAE) film; metal vapor atoms were deposited only on the colored film but not on the uncolored film. The deposition properties of the metals were strongly dependent on the deposition rates. Fine metal patterns were produced by laser scanning and a conventional vacuum-evaporation method without a shadow mask. Multiple-metal pattern preparation of Zn, Mg, and Mn via a maskless evaporation in a single vacuum process was also demonstrated.Organic electronic devices, which have advantages for various applications due to low cost, light weight, and flexibility, have been studied widely. 16 A vacuum-evaporation method with a shadow mask 7 or an ink-jet-printing process with metal nanoparticles 8 is generally used to prepare electrodes or wiring for the devices. However, it is difficult to further improve their resolution due to the complexity of the setup with a shadow mask system, or of thermal damage to the organic layer during heat treatment in an ink-jet-printing method.We have reported light-controllable selective Mg deposition on photochromic diarylethene (DAE) surfaces, where metal Mg atoms are deposited on a colored DAE surface but not on an uncolored surface by a vacuum-evaporation method.9,10 Photochromism is defined as a reversible change in color induced by light irradiation.11 The selective Mg deposition originates from large glass-transition temperature (T g ) change in the amorphous organic film in response to photoreaction. 9,12 An essential factor of the selective Mg deposition is desorption of Mg atoms from the uncolored surface due to active surface-molecular motion caused by the low T g . Mg is an important cathode material in organic electronics, 1315 and therefore the selective Mg deposition can be applied to fine cathode preparation for organic devices. 16,17 For a variety of industrial applications containing electronics and optics, the selective deposition of various metal species is desirable. We report here the selective deposition of Zn and Mn as well as Mg, and demonstrate metal pattering controlled by light irradiation with maskless vapor deposition. Results and DiscussionSelective Metal Deposition. Interaction of Metals and Deposition Rate Dependence: Figure 1 shows a photoisomerization of DAE. Selective Mg deposition means that an Mg film is formed on the colored DAE surface while not at all formed on the uncolored DAE surface by vacuum evaporation. Selectivity in Mg deposition is correlated with the difference in the T g of the DAE in its colored and uncolored states. The colored amorphous state has a T g of 95°C, whereas the uncolored state 32°C. Because the interaction between Mg atoms and DAE surface molecules such as van der Waals' force is weak, Mg is desorbed from the uncolored surface by thermal energy even at ambient temperature.9 Therefore, we tested the selective deposition for other metals such as Ca, Al, Mn, and Ag, simply by evaporating those metals to ...

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“…Electronic devices such as organic light‐emitting devices, organic thin‐film transistors, and organic memories have recently been attracting interest, and they usually require metal electrodes or wiring for their electronic operation. The selective metal deposition method is promising for preparing patterned metal electrodes on an organic layer …”

Section: Applicationsmentioning

confidence: 99%

Selective Metal-vapor Deposition on Organic Surfaces

Tsujioka

2015

The Chemical Record

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Selective metal-vapor deposition signifies that metal-vapor atoms are deposited on a hard organic surface, but not on a soft (low glass transition temperature, low Tg ) surface. In this paper, we introduce the origin, extension, and applications of selective metal-vapor deposition. An amorphous photochromic diarylethene film shows light-controlled selective metal-vapor deposition, which is caused by a large Tg change based on photoisomerization, but various organic surfaces, including organic crystal and polymers, can be utilized for achieving selective metal-vapor deposition. Various applications of selective metal-vapor deposition, including cathode patterning of organic light-emitting devices, micro-thin-film fuses, multifunctional diffraction gratings, in-plane electrical bistability for memory devices, and metal-vapor integration, have been demonstrated.

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Selective metal deposition for a structure with a thin intermediate layer on a photochromic diarylethene film

Cited by 12 publications

References 20 publications

Photochromism of Diarylethene Molecules and Crystals: Memories, Switches, and Actuators

Photochromism of Diarylethene Molecules and Crystals: Memories, Switches, and Actuators

Light-Controlled Selective Metal Deposition on a Photochromic Diarylethene Film—Toward New Applications in Electronics and Photonics—

Selective Metal-vapor Deposition on Organic Surfaces

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