Evaluation of single photon-emission in a small area for organic light-emitting diodes

Koichiro Azuma; Hiroyuki Okada

doi:10.35848/1347-4065/acfe83

Evaluation of single photon-emission in a small area for organic light-emitting diodes

Koichiro Azuma, Hiroyuki Okada^*

^*Corresponding author for this work

Electric and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Single photon-emission in organic LEDs (OLEDs) has been evaluated. The device structure of ITO/MoO₃ (20 nm)/α-NPD (50 nm)/Alq₃ (50 nm)/LiF (1 nm)/Al (70 nm) was evaporated on an ITO substrate. In addition to the common OLED measurements, photon-counting measurements were carried out, where, the light is extracted through a diameter of 100 μmϕ pinhole, and the voltage was precisely controlled within 5 mV steps using a power supply. By decreasing the voltage below 2.25 V, an average photon counting of “1” was observed at 2.135 V.

Original language	English
Article number	01SP27
Journal	Japanese Journal of Applied Physics
Volume	63
Issue number	1
DOIs	https://doi.org/10.35848/1347-4065/acfe83
State	Published - 2024/01/01

Keywords

luminance
luminous flux
organic light emitting diode
photon-counting

ASJC Scopus subject areas

General Engineering
General Physics and Astronomy

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10.35848/1347-4065/acfe83

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title = "Evaluation of single photon-emission in a small area for organic light-emitting diodes",

abstract = "Single photon-emission in organic LEDs (OLEDs) has been evaluated. The device structure of ITO/MoO3 (20 nm)/α-NPD (50 nm)/Alq3 (50 nm)/LiF (1 nm)/Al (70 nm) was evaporated on an ITO substrate. In addition to the common OLED measurements, photon-counting measurements were carried out, where, the light is extracted through a diameter of 100 μmϕ pinhole, and the voltage was precisely controlled within 5 mV steps using a power supply. By decreasing the voltage below 2.25 V, an average photon counting of “1” was observed at 2.135 V.",

keywords = "luminance, luminous flux, organic light emitting diode, photon-counting",

author = "Koichiro Azuma and Hiroyuki Okada",

note = "Publisher Copyright: {\textcopyright} 2023 The Japan Society of Applied Physics",

year = "2024",

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AU - Azuma, Koichiro

AU - Okada, Hiroyuki

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N2 - Single photon-emission in organic LEDs (OLEDs) has been evaluated. The device structure of ITO/MoO3 (20 nm)/α-NPD (50 nm)/Alq3 (50 nm)/LiF (1 nm)/Al (70 nm) was evaporated on an ITO substrate. In addition to the common OLED measurements, photon-counting measurements were carried out, where, the light is extracted through a diameter of 100 μmϕ pinhole, and the voltage was precisely controlled within 5 mV steps using a power supply. By decreasing the voltage below 2.25 V, an average photon counting of “1” was observed at 2.135 V.

AB - Single photon-emission in organic LEDs (OLEDs) has been evaluated. The device structure of ITO/MoO3 (20 nm)/α-NPD (50 nm)/Alq3 (50 nm)/LiF (1 nm)/Al (70 nm) was evaporated on an ITO substrate. In addition to the common OLED measurements, photon-counting measurements were carried out, where, the light is extracted through a diameter of 100 μmϕ pinhole, and the voltage was precisely controlled within 5 mV steps using a power supply. By decreasing the voltage below 2.25 V, an average photon counting of “1” was observed at 2.135 V.

KW - luminance

KW - luminous flux

KW - organic light emitting diode

KW - photon-counting

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JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

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M1 - 01SP27

ER -

Evaluation of single photon-emission in a small area for organic light-emitting diodes

Abstract

Keywords

ASJC Scopus subject areas

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