Device characteristics and its operation mechanism of a FET-type waveguide modulator using α -sexithienyl

Kurata, Tetsuyuki; Fukada, Chie; Fuchigami, Hiroyuki; Hamano, Kouji; Tsunoda, Sei

doi:10.1016/s0040-6090(98)00946-8

Cited by 6 publications

(3 citation statements)

References 21 publications

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“…Recently, Kurata et al have fabricated an ef®cient optical waveguide modulator with a FET-type electrode using a-6T as the semiconductor. 135 This device operates as an electro-absorption modulator with a modulation ratio as high as 20% (see Fig. 13).…”

Section: Regioregular Poly(3-hexylthiophene) the ®Rst Reportedmentioning

confidence: 99%

Structural order in conjugated oligothiophenes and its implications on opto-electronic devices

Fichou¹

2000

J. Mater. Chem.

511

372

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Section: Regioregular Poly(3-hexylthiophene) the ®Rst Reportedmentioning

confidence: 99%

Structural order in conjugated oligothiophenes and its implications on opto-electronic devices

Fichou¹

2000

J. Mater. Chem.

511

372

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“…have studied the absorption due to radical cations in -sexithiophene [19]. They observed a spectral maximum at 800 nm with a cross section of 4:6 Â 10 À17 cm 2 by fieldeffect induced charges.…”

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confidence: 99%

Highly Sensitive Determination of the Polaron-Induced Optical Absorption of Organic Charge-Transport Materials

et al. 2009

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We examine polaron-induced absorption in organic transport materials using a highly sensitive measurement technique. A hole only device is embedded into a low-loss TE2 waveguide structure, and the current induced change of the waveguide absorption is measured. The exemplary study of 2,2('),7,7(')-tetrakis(N,N-diphenylamine)-9,9(')-spiro-bifluorene (S-TAD) reveals a very low polaron absorption cross section of sigma(p) < or = 2.6 x 10(-18) cm(2) for 560 nm < or = lambda < or = 660 nm. The accuracy of this data is unsurpassed by other techniques used for the unambiguous study of polaronic species in organic thin films.

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“…Introduction Among organic molecular materials, thiophene based oligomers are a subject of increasing interest (Kobayashi 1989, Horowitz et al 1990) as model molecules for the study of optical, electronic and electro-optical properties and as prototype p-conjugated systems for technological applications (Horowitz 1998, Kurata et al 1998. Introduction Among organic molecular materials, thiophene based oligomers are a subject of increasing interest (Kobayashi 1989, Horowitz et al 1990) as model molecules for the study of optical, electronic and electro-optical properties and as prototype p-conjugated systems for technological applications (Horowitz 1998, Kurata et al 1998.…”

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confidence: 99%

Supersonic seeded beams of thiophene based oligomers for preparing films of controlled quality

Toccoli¹

1999

Philosophical Magazine B

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A hyperthermal seedable supersonic beam, speci® cally designed for the deposition of thiophene based oligomers, is presented. The beam's properties are characterized by time-of-¯ight mass spectrometry and photoionization spectroscopy. Several quaterthiophene (T4) ® lms under di erent beam conditions have been prepared and characterized by optical absorption, uorescence spectroscopy and scanning electron microscopy. Centreline heavier species segregation in the beam is exploited to grow T4 ® lms e ciently from impurities present in raw terthiophene (T3) powders. The morphology and structure of the ® lms can be controlled by the beam' s parameters that in turn allow variation in¯ux density, energy and orientation of molecules in the beam.

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Device characteristics and its operation mechanism of a FET-type waveguide modulator using α -sexithienyl

Cited by 6 publications

References 21 publications

Structural order in conjugated oligothiophenes and its implications on opto-electronic devices

Structural order in conjugated oligothiophenes and its implications on opto-electronic devices

Highly Sensitive Determination of the Polaron-Induced Optical Absorption of Organic Charge-Transport Materials

Supersonic seeded beams of thiophene based oligomers for preparing films of controlled quality

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