p‐i‐n Homojunction in Organic Light‐Emitting Transistors

Bisri, Satria Zulkarnaen; Takenobu, Taishi; Sawabe, Kosuke; Tsuda, Satoshi; Yomogida, Yohei; Yamao, Takeshi; Hotta, Shu; Adachi, Chihaya; Iwasa, Yoshihiro

doi:10.1002/adma.201004572

Cited by 82 publications

(88 citation statements)

References 27 publications

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“…The merits of these materials are strong luminescence and high carrier mobilities, though these properties have been believed to be mutually exclusive [40, 41]. Bright emission was demonstrated through self-waveguide edge emission, which is also achievable by single crystals.…”

Section: Light-emitting Ofetsmentioning

confidence: 99%

Recent progress in photoactive organic field-effect transistors

Wakayama

Hayakawa

Seo

2014

Science and Technology of Advanced Materials

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Recent progress in photoactive organic field-effect transistors (OFETs) is reviewed. Photoactive OFETs are divided into light-emitting (LE) and light-receiving (LR) OFETs. In the first part, LE-OFETs are reviewed from the viewpoint of the evolution of device structures. Device performances have improved in the last decade with the evolution of device structures from single-layer unipolar to multi-layer ambipolar transistors. In the second part, various kinds of LR-OFETs are featured. These are categorized according to their functionalities: phototransistors, non-volatile optical memories, and photochromism-based transistors. For both, various device configurations are introduced: thin-film based transistors for practical applications, single-crystalline transistors to investigate fundamental physics, nanowires, multi-layers, and vertical transistors based on new concepts.

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Section: Light-emitting Ofetsmentioning

confidence: 99%

Recent progress in photoactive organic field-effect transistors

Wakayama

Hayakawa

Seo

2014

Science and Technology of Advanced Materials

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“…Therefore, several studies have examined OLETs fabricated with solution-processed conjugated polymers, vacuum-deposited thin films of small molecules, and single crystals. Thus, the operational performance of OLETs has rapidly improved4567891011121314151617.…”

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confidence: 99%

Organic Single-Crystal Light-Emitting Transistor Coupling with Optical Feedback Resonators

Bisri

Sawabe

Imakawa

et al. 2012

Sci Rep

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Organic light-emitting transistors (OLETs) are of great research interest because they combine the advantage of the active channel of a transistor that can control the luminescence of an in-situ light-emitting diode in the same device. Here we report a novel single-crystal OLET (SCLET) that is coupled with single crystal optical feedback resonators. The combination of single-crystal waveguides with native Fabry-Perot cavities, formed by parallel crystal edges, drastically lowers the threshold energy for spectral narrowing and non-linear intensity enhancement. We apply this structure to SCLETs and demonstrate the first fabrication of a SCLET with the optical feedback resonators.

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“…The light output of the LEFETs is yet too low for many practical applications. Several approaches have been proposed to increase the light output by using for instance bilayer structures composed of p-type and n-type semiconductors [6][7][8][9], organic heterostructures in the channel [10,11], improved injection of both carriers by tuning the work functions of injecting contacts [3,12], adding small amounts of semiconducting carbon nanotubes [13], incorporating optical structures [14,15] and multiple gates [16]. The drawback of these methods is that they add complexity to the fabrication process.…”

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confidence: 99%