New Pentacene Crystalline Phase Induced by Nanoimprinted Polyimide Gratings
Control of the polymorphism of organic semiconductor films is very important in optoelectronic devices, such as organic thin-film transistors, solar cells, and organic light-emitting diodes. Here, we show the use of polyimide nanogratings (PI-NGs) patterned by nanoimprint lithography to control the...
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| Veröffentlicht in: | Journal of physical chemistry. C 2012-04, Vol.116 (15), p.8619-8626 |
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| container_issue | 15 |
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| container_title | Journal of physical chemistry. C |
| container_volume | 116 |
| creator | Chou, Wei-Yang Chang, Ming-Hua Cheng, Horng-Long Lee, Yung-Chun Chang, Chung-Chih Sheu, Hwo-Shuenn |
| description | Control of the polymorphism of organic semiconductor films is very important in optoelectronic devices, such as organic thin-film transistors, solar cells, and organic light-emitting diodes. Here, we show the use of polyimide nanogratings (PI-NGs) patterned by nanoimprint lithography to control the polymorphism of deposited pentacene films. Interestingly, a new crystalline phase is first found in the pentacene thin-film formed on the PI-NGs. This new phase, with a d-spacing of 1.35 nm, is more stable than the bulk and thin-film phases in the pentacene film, discussed in terms of X-ray diffraction (XRD) measurements and quantum theory calculations. The response mechanism of the formation of this new phase is characterized by XRD and atomic force microscopy; the polymorphism and surface morphology show a strong dependence on the width of PI-NGs. The size-dependent PI-NG responses of the pentacene film can also control the phase transition from the thin-film to the bulk phase. |
| doi_str_mv | 10.1021/jp300043j |
| format | Article |
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Here, we show the use of polyimide nanogratings (PI-NGs) patterned by nanoimprint lithography to control the polymorphism of deposited pentacene films. Interestingly, a new crystalline phase is first found in the pentacene thin-film formed on the PI-NGs. This new phase, with a d-spacing of 1.35 nm, is more stable than the bulk and thin-film phases in the pentacene film, discussed in terms of X-ray diffraction (XRD) measurements and quantum theory calculations. The response mechanism of the formation of this new phase is characterized by XRD and atomic force microscopy; the polymorphism and surface morphology show a strong dependence on the width of PI-NGs. 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The size-dependent PI-NG responses of the pentacene film can also control the phase transition from the thin-film to the bulk phase.</description><subject>Applied sciences</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Electronics</subject><subject>Energy</subject><subject>Exact sciences and technology</subject><subject>Materials science</subject><subject>Methods of nanofabrication</subject><subject>Nanoscale pattern formation</subject><subject>Natural energy</subject><subject>Optoelectronic devices</subject><subject>Photovoltaic conversion</subject><subject>Physics</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</subject><subject>Solar cells. 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Microelectronics. Optoelectronics. Solid state devices</topic><topic>Solar cells. Photoelectrochemical cells</topic><topic>Solar energy</topic><topic>Transistors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chou, Wei-Yang</creatorcontrib><creatorcontrib>Chang, Ming-Hua</creatorcontrib><creatorcontrib>Cheng, Horng-Long</creatorcontrib><creatorcontrib>Lee, Yung-Chun</creatorcontrib><creatorcontrib>Chang, Chung-Chih</creatorcontrib><creatorcontrib>Sheu, Hwo-Shuenn</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Journal of physical chemistry. C</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chou, Wei-Yang</au><au>Chang, Ming-Hua</au><au>Cheng, Horng-Long</au><au>Lee, Yung-Chun</au><au>Chang, Chung-Chih</au><au>Sheu, Hwo-Shuenn</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>New Pentacene Crystalline Phase Induced by Nanoimprinted Polyimide Gratings</atitle><jtitle>Journal of physical chemistry. C</jtitle><addtitle>J. Phys. Chem. C</addtitle><date>2012-04-19</date><risdate>2012</risdate><volume>116</volume><issue>15</issue><spage>8619</spage><epage>8626</epage><pages>8619-8626</pages><issn>1932-7447</issn><eissn>1932-7455</eissn><abstract>Control of the polymorphism of organic semiconductor films is very important in optoelectronic devices, such as organic thin-film transistors, solar cells, and organic light-emitting diodes. 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| source | American Chemical Society Journals |
| subjects | Applied sciences Cross-disciplinary physics: materials science rheology Electronics Energy Exact sciences and technology Materials science Methods of nanofabrication Nanoscale pattern formation Natural energy Optoelectronic devices Photovoltaic conversion Physics Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Solar cells. Photoelectrochemical cells Solar energy Transistors |
| title | New Pentacene Crystalline Phase Induced by Nanoimprinted Polyimide Gratings |
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