Synthesis and characterization of heteroatom-bridged bisspirobifluorenes for the application of organic light-emitting diodes

Cheng-Lung Wu; Chao-Tsen Chen; Chin-Ti Chen

doi:10.1117/12.2062431

8 October 2014 Synthesis and characterization of heteroatom-bridged bisspirobifluorenes for the application of organic light-emitting diodes

Cheng-Lung Wu, Chao-Tsen Chen, Chin-Ti Chen

Author Affiliations +

Proceedings Volume 9183, Organic Light Emitting Materials and Devices XVIII; 918324 (2014) https://doi.org/10.1117/12.2062431
Event: SPIE Organic Photonics + Electronics, 2014, San Diego, California, United States

Abstract

Pure 2-iodo-9,9′-spirobifluorene was synthesized by an efficient method without troublesome iodination of 9,9- spirobifluorene (SP) or the Sandmeyer reaction of 2-amino-9,9′-spirobifluorene. A series of main group element-bridged bis-9,9′-spirobifluorene derivatives were synthesized via coupling reactions of 2-iodo-9,9′-spirobifluorene and main group element-containing precursors. These heteroatom-bridged bis-spirobifluorenes show large triplet state energy gaps, high glass transition temperatures, and varied charge-transporting properties advantageous to the host materials for blue phosphorescence organic light-emitting diodes (PhOLEDs).

Citation Download Citation

Cheng-Lung Wu, Chao-Tsen Chen, and Chin-Ti Chen "Synthesis and characterization of heteroatom-bridged bisspirobifluorenes for the application of organic light-emitting diodes", Proc. SPIE 9183, Organic Light Emitting Materials and Devices XVIII, 918324 (8 October 2014); https://doi.org/10.1117/12.2062431

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