Degradation of organic light-emitting diodes (OLEDs) is primarily due to the formation of the non-emissive centers, and their formation rate is dependent on the temperature. We observed the linear dependence of total luminance on the temperature, and formulated a novel degradation model to present an analytic function for the OLED degradation with physically meaningful fitting parameters. It was found that the stretched exponential decay (SED) behavior of the degradation is mainly due to the temperature dependence of the luminance. (C) 2014 Elsevier B.V. All rights reserved.
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Korea Inst Ind Technol, Nanoelect Team, Natl Ctr Nanoproc & Equipment, Kwangju 500480, South KoreaKorea Inst Ind Technol, Nanoelect Team, Natl Ctr Nanoproc & Equipment, Kwangju 500480, South Korea
Park, Jongwoon
Kim, Taewon
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Korea Inst Ind Technol, Nanoelect Team, Natl Ctr Nanoproc & Equipment, Kwangju 500480, South KoreaKorea Inst Ind Technol, Nanoelect Team, Natl Ctr Nanoproc & Equipment, Kwangju 500480, South Korea
Kim, Taewon
Lee, Jongho
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Korea Inst Ind Technol, Nanoelect Team, Natl Ctr Nanoproc & Equipment, Kwangju 500480, South KoreaKorea Inst Ind Technol, Nanoelect Team, Natl Ctr Nanoproc & Equipment, Kwangju 500480, South Korea
Lee, Jongho
Shin, Dongchan
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Chosun Univ, Dept Adv Mat Engn, Kwangju 501759, South KoreaKorea Inst Ind Technol, Nanoelect Team, Natl Ctr Nanoproc & Equipment, Kwangju 500480, South Korea
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Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R ChinaDalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China
Li, Jiuyan
Liu, Di
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Dalian Univ Technol, Dept Chem, Dalian 116023, Peoples R ChinaDalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China