Light emitting field-effect transistors with vertical heterojunctions based on pentacene and tris-(8-hydroxyquinolinato) aluminum

Cui, Shujie; Hu, Yufeng; Lou, Zhidong; Yi, Ran; Hou, Yanbing; Teng, Feng

doi:10.1016/j.orgel.2015.03.029

Cited by 17 publications

(16 citation statements)

References 28 publications

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“…The typical LET architecture used has interdigitated source and drain electrodes as shown in Figure a to increase the W / L (ratio of the channel width to channel length) of the devices and enhance their performance. However, the major drawback of all these LETs continues to be the narrow emission zone, which is generally restricted to the edge of the emitting electrode (in unipolar mode) or a narrow emission zone moving through the channel (in ambipolar mode) …”

Section: A Table Of the Collated Values Of Electrical And Optical Chamentioning

confidence: 99%

Hybrid Area‐Emitting Transistors: Solution Processable and with High Aperture Ratios

et al. 2015

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Section: A Table Of the Collated Values Of Electrical And Optical Chamentioning

confidence: 99%

Hybrid Area‐Emitting Transistors: Solution Processable and with High Aperture Ratios

et al. 2015

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“…A cross‐sectional SEM image of the device (Figure S3, Supporting Information) shows clear separation of layers. The energy‐band diagram (Figure b) of the CNUVS in the cross‐sectional direction was obtained using ultraviolet photoelectron spectroscopy and UV‐vis absorption spectroscopy (Figure S4, Supporting Information) . Calculations yielded a valence band edge energy level of 5.77 eV, and a conduction band edge energy level of 2.36 eV.…”

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confidence: 99%

Retina‐Inspired Carbon Nitride‐Based Photonic Synapses for Selective Detection of UV Light

et al. 2020

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Photonic synapses combine sensing and processing in a single device, so they are promising candidates to emulate visual perception of a biological retina. However, photonic synapses with wavelength selectivity, which is a key property for visual perception, have not been developed so far. Herein, organic photonic synapses that selectively detect UV rays and process various optical stimuli are presented. The photonic synapses use carbon nitride (C3N4) as an UV‐responsive floating‐gate layer in transistor geometry. C3N4 nanodots dominantly absorb UV light; this trait is the basis of UV selectivity in these photonic synapses. The presented devices consume only 18.06 fJ per synaptic event, which is comparable to the energy consumption of biological synapses. Furthermore, in situ modulation of exposure to UV light is demonstrated by integrating the devices with UV transmittance modulators. These smart systems can be further developed to combine detection and dose‐calculation to determine how and when to decrease UV transmittance for preventive health care.

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“…Among those materials, Tris (8-hydroxyquinoline) aluminum (III) (Alq3) has been attracted and seen as a promising candidate for its excellent electrical transport and emission properties, as well as its high thermal stability. As a result, it is a better choice for emissive and electron-transparent layers in OLED and organic light-emitting transistor (OLET) devices [ 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Yellow Emissive Tris(8-hydroxyquinoline) Aluminum by the Incorporation of ZnO Quantum Dots for OLED Applications

Makki

Park

2021

Micromachines

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Tris(8-hydroxyquinoline) aluminum complexes are of significant interest because of their remarkable optical and electrical properties, both as an emissive layer and electron injection layer. They emit light in the blue and green ranges of the visible spectrum, so for white organic light emitting diodes (OLEDs), yellow emission is required as well. In this study, we propose the use of zinc oxide quantum dots to tune the emission color of the complex while maintaining its luminous efficiency. Hence, tris(8-hydroxyquinoline) aluminum-zinc oxide nanohybrids with different zinc oxide quantum dots concentrations (10, 20, or 30 wt.%) were synthesized. The structural properties were characterized using powder X-ray diffraction analysis, while the composition and optical characteristics were characterized by Fourier transform infrared spectroscopy, UV-visible absorption spectroscopy, and photoluminescence emission spectroscopy. The results show that increased levels of zinc oxide quantum dots lead to a decrease in crystallinity, double hump emission and a slight red shift in emission peaks. Also, at 20 and 30 wt.% of zinc oxide quantum dots concentrations, yellow emission was observed.

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Light emitting field-effect transistors with vertical heterojunctions based on pentacene and tris-(8-hydroxyquinolinato) aluminum

Cited by 17 publications

References 28 publications

Hybrid Area‐Emitting Transistors: Solution Processable and with High Aperture Ratios

Hybrid Area‐Emitting Transistors: Solution Processable and with High Aperture Ratios

Retina‐Inspired Carbon Nitride‐Based Photonic Synapses for Selective Detection of UV Light

Yellow Emissive Tris(8-hydroxyquinoline) Aluminum by the Incorporation of ZnO Quantum Dots for OLED Applications

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