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Journal Article
Random wrinkle structures for spectrum preserved warm white organic light emitting diodes
- Authors
- Jaehyun Moon, Keunsoo Lee, Seung Koo Park, Chul Woong Joo, Jin-Wook Shin, Jonghee Lee, Jun-Han Han, Nam Sung Cho
- Issue Date
- 2023-01
- Citation
- Journal of Industrial and Engineering Chemistry, v.117, pp.298-306
- ISSN
- 1226-086X
- Publisher
- 한국공업화학회
- Language
- English
- Type
- Journal Article
- Abstract
- Surface wrinkles of mesoscopic size were formed by a single photocuring process of an in-house synthesized linear liquid pre-polymer. The linear relationship between the amplitude and the period of the wrinkles indicates the presence of constant compressive strain during the wrinkling process. The stiffness ratio of the hard film to the soft foundation decreases as the initial film becomes thinner, providing a quantitative measure for estimating the wrinkle size. As an application, mesoscopic wrinkles were investigated as optical structures for enhanced light outcoupling and angular spectral stability of red, green, blue, and white organic light emitting diodes.
- KSP Keywords
- Compressive strain, Hard film, Light outcoupling, Optical structure, Organic light-emitting diodes(OLEDS), Pre-polymer, Quantitative measures, Soft foundation, Spectral stability, White organic light-emitting diodes, light-emitting diode(LED)
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC ND)
(CC BY NC ND)
