Peripheral Cycloalkyl Functionalized Tetradentate Platinum(II) Phosphorescent Complex: Synthesis, Optical Tuning, and OLED Applications.

Giheon Park, Seon-Jin Lee, Minsoo Kang, Wan Pyo Hong

Abstract read

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Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

4 authors.

Giheon ParkDepartment of Chemistry, Gachon University, 1342, Seongnam-daero, Sujeong-gu, Seongnma-si 13120, Gyeonggi-do, Republic of Korea.

Seon-Jin LeeDepartment of Chemistry, Gachon University, 1342, Seongnam-daero, Sujeong-gu, Seongnma-si 13120, Gyeonggi-do, Republic of Korea.

Minsoo KangSK Material JNC, 560, Dongtangiheung-ro, Hwaseong-si 18469, Gyeonggi-do, Republic of Korea.

Wan Pyo HongDepartment of Chemistry, Gachon University, 1342, Seongnam-daero, Sujeong-gu, Seongnma-si 13120, Gyeonggi-do, Republic of Korea.

Funding

Gachon University GCU-202301130001LG Chem (South Korea) development of blue materials for phosphor-sensitized emissionMinistry of Trade, Industry and Energy 20016007, development of phosphorescent TADF dopant with EQE 20% using AI platform

6 · The paper itself

Abstract

A tetradentate Pt(II) complex with a 5/6/6 structural backbone, Pt(PhPiPy-O-PytmCz), was synthesized by incorporating two distinct cycloalkyl groups. These structural modifications significantly enhanced the photoluminescence quantum yield and effectively increased the distance between molecules, thereby mitigating undesirable intermolecular interactions and triplet-state quenching. This strategic molecular design resulted in an external quantum efficiency of 11.5% at a wavelength of 539 nm and significantly enhanced operational lifetimes in green phosphorescent organic light-emitting diodes (OLEDs). These findings are expected to inspire the development of new green luminescent materials and innovative strategies in OLED technology.

Indexed as

green phosphorescenceOLED emitterPt(II) complextetradentate Pt complex

Identifiers

PMID40649431

DOI10.3390/ma18132942

PMCPMC12250862

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