Electroluminescence of anthracene before breakdown

Zvyagintsev, A. M.; Steblin, V. I.; Chilaya, G. S.

doi:10.1007/bf00607520

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…It means that electrons and holes are injected from the source electrode alternately. The frequency and amplitude of AC voltage were 50 {10 6 Hz and 5 -50 V, respectively. EL from tetracene FET was detected using a photomultiplier tube (PMT; Hamamatsu R3896), and the PMT signal was monitored using a digital picoammeter (Keithley 6487) or a digital oscilloscope (Tektronix TDS220) as the current I photo .…”

Section: Measurementmentioning

confidence: 99%

“…2,3) Among these materials, organic electroluminescence (EL) is one of the most notable phenomena in organic electronics such as in organic light-emitting diodes (OLEDs). 4,5) Organic EL has two aspects, one is as a signal of dielectric prebreakdown under AC electric field as in the case of organic insulators, [6][7][8][9] and the other is as a source of light under DC electric field as in the case of OLEDs. Therefore, organic EL is an important phenomenon for both cases of organic insulators and organic semiconductors.…”

Section: Introductionmentioning

confidence: 99%

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Observation of Carrier Behavior in Organic Field-Effect Transistors with Electroluminescence under AC Electric Field

Ohshima

Kohn

Lim

et al. 2008

jjap

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The carrier behavior in a tetracene thin film under AC electric field was examined by electroluminescence (EL) using the structure of organic field-effect transistors (OFETs). A square wave voltage was applied to the source electrode, whereas the drain and gate electrodes were connected to the ground. Electrons and holes were injected from the Au source electrode alternately, and they recombined at the interface between the tetracene thin film and the source electrode. A series of EL pulses was observed in accordance with the applied AC voltage, i.e., a transient EL was observed in a half cycle of AC. This result indicates that alternating carrier injection causes EL. Furthermore, EL intensity increased with the frequency and amplitude of AC voltage. It was suggested that the amount of electrons and holes injected from the source electrode in a unit time is controlled by the frequency and amplitude of AC voltage.

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Section: Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Observation of Carrier Behavior in Organic Field-Effect Transistors with Electroluminescence under AC Electric Field

Ohshima

Kohn

Lim

et al. 2008

jjap

View full text Add to dashboard Cite

show abstract

“…For example, it is known that carrier injection is a prebreakdown process leading to Zener and Avalanche breakdown, and these breakdown and related phenomena, e.g., electrical treeing, are observed in polyethylene in the high-electric-field region. [4][5][6][7] Interestingly, as possible evidence of carrier injection leading to the dielectric breakdown of electrical insulators such as polyethylene, electroluminescence (EL) has been found to occur with the application of an AC electric field, [4][5][6][7][8][9] where the recombination of injected electrons and holes in insulators causes the EL. On the other hand, carrier injection accompanying EL was found in anthracene single crystals subjected to a DC electric field by Helfrich and Schneider, 10) where electron injection into the anthracene crystals is the most prominent process.…”

Section: Introductionmentioning

confidence: 99%

Observation of Electron Injection into Organic Field-Effect Transistor with Au Electrodes using Electroluminescence under AC Electric Field

Ohshima

Kohn

Lim

et al. 2008

jjap

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The electroluminescence (EL) from a tetracene field-effect transistor was examined by applying an AC voltage to elucidate electron injection from the source and drain Au electrodes. The EL intensity was proportional to the AC frequency up to 500 kHz, but it decayed rapidly with elapsed time when applying the AC voltage. The EL spectrum corresponded well with the photoluminescence spectrum. These results indicate that holes and electrons are injected into the tetracene alternately in accordance with the AC applied voltage, and that the EL is radiated due to the recombination of the injected holes and electrons, while the space charge formation leading to the gradual decay of the EL proceeds owing to the accumulation and trapping of excessive injected carriers.

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Electroluminescence of anthracene before breakdown

Cited by 2 publications

References 4 publications

Observation of Carrier Behavior in Organic Field-Effect Transistors with Electroluminescence under AC Electric Field

Observation of Carrier Behavior in Organic Field-Effect Transistors with Electroluminescence under AC Electric Field

Observation of Electron Injection into Organic Field-Effect Transistor with Au Electrodes using Electroluminescence under AC Electric Field

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