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Song, Myoung Hoon
Organic Photonics & Optoelectronics Lab
Research Interests
  • Organic optoelectrics, perovskite light-emitting diodes, surface treatment, photonic crystals

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Boosting the efficiency of quasi-2D perovskites light-emitting diodes by using encapsulation growth method

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dc.contributor.author Liu, Yanliang ko
dc.contributor.author Yu, Zhongkai ko
dc.contributor.author Chen, Shi ko
dc.contributor.author Park, Jong Hyun ko
dc.contributor.author Jung, Eui Dae ko
dc.contributor.author Lee, Seungjin ko
dc.contributor.author Kang, Keehoon ko
dc.contributor.author Ko, Seo-Jin ko
dc.contributor.author Lim, Jongchul ko
dc.contributor.author Song, Myoung Hoon ko
dc.contributor.author Xu, Baomin ko
dc.contributor.author Snaith, Henry J. ko
dc.contributor.author Park, Sung Heum ko
dc.contributor.author Lee, Bo Ram ko
dc.date.available 2020-11-19T08:44:51Z -
dc.date.created 2020-11-16 ko
dc.date.issued 2021-02 ko
dc.identifier.citation NANO ENERGY, v.80, pp.105511 ko
dc.identifier.issn 2211-2855 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/48760 -
dc.description.abstract The fabrication of perovskite film is crucial for achieving efficient perovskite photoelectric device. Herein, a simple and novel encapsulation growth method was applied to prepare high-quality quasi-2D perovskite films with advantages of compact and uniform morphology, high crystallinity with lower defect density, enhanced photoluminescence quantum yield (PLQY) and optimized multidimensional domain distribution and crystallite orientation for perovskite light-emitting diodes (PeLEDs). The encapsulation growth method was found to decrease the proportion of the low-dimensional (n = 1,2,3) domains while increasing the high-dimensional domains content with randomly-oriented crystals, which simultaneously enhanced the overall energy landscape effect and charges transport within the quasi-2D perovskite films, and the PLQY of the quasi-2D perovskites significantly improved from 9.2% to 60.0%. Finally, an efficient flexible green PeLEDs was obtained with a high luminous efficiency (LE) of 47.1 cd/A, and a luminance brightness of 8300 cd/m(2), and an efficient sky-blue PeLEDs was also achieved with record EQE of 12.8% by using encapsulation growth method. This encapsulation growth method provides a promising strategy for boosting the efficiency of quasi-2D PeLEDs. ko
dc.language 영어 ko
dc.publisher Elsevier BV ko
dc.title Boosting the efficiency of quasi-2D perovskites light-emitting diodes by using encapsulation growth method ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85094979513 ko
dc.identifier.wosid 000618004700003 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.nanoen.2020.105511 ko
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S2211285520310855 ko
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