2018
DOI: 10.1117/1.jpe.8.032105
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Quantitative analyses of high electroluminescence efficiency of thermally activated delayed fluorescence emitters based on acridine–triazine hybrids

Abstract: Quantitative analyses of high electroluminescence efficiency of thermally activated delayed fluorescence emitters based on acridine-triazine hybrids," J. Photon. Energy 8(3), 032105 (2018), doi: 10.1117/1.JPE.8.032105. Abstract. Quantitative optical analyses were conducted on the mechanisms of impressively high electroluminescence (EL) efficiency (external quantum efficiency of up to 37%) achieved in previously reported blue organic light-emitting devices (OLEDs) using thermally activated delayed fluorescence … Show more

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Cited by 4 publications
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“…The outcoupling efficiency (η out ) of the EL device is related to each material’s refractive index, the EML material’s horizontal ratio, and the thickness of each layer. Herein, the horizontal dipole ratios for three emitters (84–86%) are close to the model compound TPAmPPC (88%), and we adopted the same transporting materials TAPC and 3TPYMB with low refractive index, which are beneficial to achieve an efficient light outcoupling. , Moreover, the fact that the EL spectra showed only dopant emission suggests that the energy transfer from the mCPCN host to the emitters was successful and efficient. These findings highlight the importance of controlling the molecular orientation in designing and optimizing TADF OLEDs.…”
Section: Resultsmentioning
confidence: 99%
“…The outcoupling efficiency (η out ) of the EL device is related to each material’s refractive index, the EML material’s horizontal ratio, and the thickness of each layer. Herein, the horizontal dipole ratios for three emitters (84–86%) are close to the model compound TPAmPPC (88%), and we adopted the same transporting materials TAPC and 3TPYMB with low refractive index, which are beneficial to achieve an efficient light outcoupling. , Moreover, the fact that the EL spectra showed only dopant emission suggests that the energy transfer from the mCPCN host to the emitters was successful and efficient. These findings highlight the importance of controlling the molecular orientation in designing and optimizing TADF OLEDs.…”
Section: Resultsmentioning
confidence: 99%