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DC Field | Value | Language |
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dc.citation.endPage | 3200 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 3192 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.citation.volume | 22 | - |
dc.contributor.author | Mukherjee, Biswanath | - |
dc.contributor.author | Sim, Kyoseung | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Lee, Junghyun | - |
dc.contributor.author | Mukherjee, Moumita | - |
dc.contributor.author | Ree, Moonhor | - |
dc.contributor.author | Pyo, Seungmoon | - |
dc.date.accessioned | 2023-12-22T04:36:19Z | - |
dc.date.available | 2023-12-22T04:36:19Z | - |
dc.date.created | 2020-01-23 | - |
dc.date.issued | 2012-20 | - |
dc.description.abstract | High quality, single crystalline, ordered arrays of a pi-conjugated organic molecule, N,N'-dioctyl-3,4,9,10-perylene tetracarboxylic diimide (PTCDI-C-8), were grown by solution processing and used to fabricate a low-cost, high-performance organic phototransistor (OPT). The single crystalline nature of the microstructure was investigated using 2D-GIXD measurement. The organic field-effect transistor fabricated using periodic arrays of elongated crystals exhibited a photoresponsivity (P) of ca. 1 A W-1 and a photo to dark current ratio (I-on/I-off) of 2.5 x 10(3) at V-G = 12 V and a maximum P of ca. 7 A W-1 at the high gate bias regime (V-G = 50 V) with an optical power of ca. 7.5 mW cm(-2). With polymeric gate dielectric, the OPT exhibited very stable n-type characteristics both in the dark and under light illumination and showed reproducible photo-switching behavior. The dependence of the photocurrent on the gate/drain voltage and on illumination intensity provided an effective way to control the number of photo-carriers generated in the active material, enabling the precise tuning of the device's performance. Performance comparison between OPTs with ordered crystal arrays and thin films of PTCDI-C-8 confirmed that the material's intrinsic properties were better realized in the crystalline device, presumably because of higher charge carrier mobility and better charge transport capability. This one-step, solution-based, self-assembly fabrication of multifunctional (photodetection, photoswitching, signal amplification) optoelectronic devices has potential to aid the development of organic semiconductors with high-quality micro/nanostructures for large-scale application and low-cost optoelectronic devices. | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY, v.22, no.7, pp.3192 - 3200 | - |
dc.identifier.doi | 10.1039/c2jm14179e | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.scopusid | 2-s2.0-84863033296 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/30881 | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2012/JM/c2jm14179e#!divAbstract | - |
dc.identifier.wosid | 000299504200052 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Organic phototransistors based on solution grown, ordered single crystalline arrays of a pi-conjugated molecule | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | FIELD-EFFECT TRANSISTORS | - |
dc.subject.keywordPlus | THIN-FILM TRANSISTORS | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | PENTACENE | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | MICRORIBBONS | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | CHANNEL | - |
dc.subject.keywordPlus | SURFACE | - |
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