Session and scheduling information are listed below. Select a session from the list and press "Go" to view the abstracts for that session.
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Session
45
: OLED Materials I |
OLEDs
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Wednesday, May 15 / 03:30 PM - 5:10 PM / San Jose Convention Center, LL21CD
Chair:
Yasunori Kijima, Huawei Technologies Japan K.K., Shinagawa, Japan
Co-Chair:
Anna Hayer, Merck KGaA, Darmstadt, Germany
45.1 - Invited Paper: Design Strategies for NIR-Emitting Materials (3:30 PM - 3:50 PM)
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Jeong Yong Park, Gyeong Seok Lee, Yun-Hi Kim
Gyeongsang National University and Research Institute of Molecular Alchemy Jinju South Korea
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In this paper, the authors summarize a collection of innovative organic near-infrared (NIR) emitters that are a crucial factor to design a specific NIR emitter for NIR OLEDs. Near-infrared organic light-emitting diodes (NIR OLEDs) with heavy metals or TADF materials are regularly reported due to the advantages of their various applications in healthcare services, authentication, and night vision displays.
45.2 - Invited Paper: Emitter Based on Europium as Alternative for Stable, Deep-Blue OLED Emission (3:50 PM - 4:10 PM)
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Carsten Rothe, Paulius Imbrasas, Volodymyr Senkovskyy, Jan Blochwitz-Nimoth
beeOLED GmbH Dresden Germany
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Efficient and stable blue is the holy grail of OLED. beeOLED is pioneering an intra-metallic Europium emitter that offers a unique combination of deep-blue, single-peak emission spectrum, open-shell electronic configuration for 100% efficiency, and the potential of high operational stability, as no organic bonds are weakened during light generation.
45.3 - Molecular Design of Blue Phosphorescent Platinum Complexes for Highly Efficient, Long-Lived Blue Organic Light-Emitting Diodes (4:10 PM - 4:30 PM)
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Tomoya Yamaguchi, Tomohiro Kubota, Hideko Inoue, Hiromitsu Kido, Nobuharu Ohsawa, Satoshi Seo, Shunpei Yamazaki
Semiconductor Energy Laboratory Co., Ltd. Kanagawa Japan
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The authors' novel blue phosphorescent platinum complexes (BD-01 and BD-02) achieve high quantum yield and orientation. A BD-02 organic light-emitting diode (OLED) achieves an external quantum efficiency of 28.6% due to its inhibited interaction with a host molecule. This improved efficiency reduces the driving current of OLEDs and increases their lifetime.
45.4 - On the Determination of Ionization Potentials (4:30 PM - 4:50 PM)
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Franz Symalla, Artem Fediai, Tobias Neumann, Timo Strunk
Nanomatch GmbH Karlsruhe Germany
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Two key material properties in the design of balanced OLED devices are ionization potential (IP) and electron affinities (EA). The authors discuss how measured quantities relate to relevant energy levels in OLEDs. They present a simulation approach and benchmark it against experimental data. The derived understanding has the potential to improve material alignment in OLED devices, ultimately improving efficiency.
45.5 Late-News Paper: Green Phosphor-Sensitized Multiple Resonance OLEDs with Current Efficiency of More than 250 cd/A (4:50 PM - 5:10 PM)
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Xiao Liang, Xudong Cao, Chong Li
Jiangsu Sunera Technology Wuxi China
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Dongdong Zhang, Lian Duan
Tsinghua University Peking China
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An advanced organic light-emitting diode (OLED) architecture featuring a green phosphorescent emitter with multiple resonance sensitization achieves a notable current efficiency exceeding 250 cd/A at a density of 10 mA/cm2. This design integrates phosphor-sensitized fluorescent technology, resulting in significant longevity enhancement, superior color accuracy, and reduced sensitivity to doping concentrations.