Fabrication of 6,13-Bis(triisopropylsilylethynyl) Pentacene Films by Electrostatic Spray Deposition for Bottom-Contact Organic Field-Effect Transistors
抄録
<jats:p> In this study, 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS pentacene) films were prepared by electrostatic spray deposition (ESD) for fabrication of bottom-contact organic field-effect transistors (OFETs) having the channel length of 5 µm. Since the crystalline quality of TIPS pentacene film strongly depends on the nature of the spray droplets, we investigated preparation condition of TIPS pentacene solution with mixed organic solvents. Large crystal domains were obtained by using a 1,2-diclorobenzene (<jats:italic>o</jats:italic>-DCB):ethanol mixed solvent. On the other hand, the film deposited using the toluene:ethanol mixed solvent was composed of small domains. Due to larger crystal domains obtained in the film deposited using the <jats:italic>o</jats:italic>-DCB:ethanol mixed solvent (i.e., reducing domain boundaries), we could fabricate the bottom-contact OFET exhibiting the field-effect mobility of 1.6×10<jats:sup>-2</jats:sup> cm<jats:sup>2</jats:sup>/(V·s) which was almost 100 times higher than that based on the film deposited using the toluene:ethanol mixed solvent [2.0×10<jats:sup>-4</jats:sup> cm<jats:sup>2</jats:sup>/(V·s)]. </jats:p>
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 52 (5S1), 05DB06-, 2013-05-01
IOP Publishing
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詳細情報 詳細情報について
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- CRID
- 1360284924863559936
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- NII論文ID
- 210000142211
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- ISSN
- 13474065
- 00214922
- http://id.crossref.org/issn/13474065
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