High-efficiency circularly polarized light-emitting diodes based on chiral metal nanoclusters

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dc.contributor.authorLu, Jianxun
dc.contributor.authorShao, Bingyao
dc.contributor.authorHuang, Ren-Wu
dc.contributor.authorGutiérrez-Arzaluz, Luis
dc.contributor.authorChen, Shulin
dc.contributor.authorHan, Zhen
dc.contributor.authorYin, Jun
dc.contributor.authorZhu, Hongwei
dc.contributor.authorDayneko, Sergey
dc.contributor.authorHedhili, Mohamed Nejib
dc.contributor.authorSong, Xin
dc.contributor.authorYuan, Peng
dc.contributor.authorDong, Chunwei| Zhou, Renqian
dc.contributor.authorSaidaminov, Makhsud I.
dc.contributor.authorZang, Shuang-Quan
dc.contributor.authorMohammed, Omar F.
dc.contributor.authorBakr, Osman M.
dc.date.accessioned2025-01-23T18:38:35Z
dc.date.available2025-01-23T18:38:35Z
dc.date.issued2024
dc.description.abstractCircularly polarized light-emitting diodes (CP-LEDs) are critical for next-generation optical technologies, ranging from holography to quantum information processing. Currently deployed chiral luminescent materials, with their intricate synthesis and processing and limited efficiency, are the main bottleneck for CP-LEDs. Chiral metal nanoclusters (MNCs) are potential CP-LED materials, given their ease of synthesis and processability as well as diverse structures and excited states. However, their films are usually plagued by inferior electronic quality and aggregation-caused photoluminescence quenching, necessitating their incorporation into host materials; without such a scheme, MNC-based LEDs exhibit external quantum efficiencies (EQEs) < 10%. Herein, we achieve an efficiency leap for both CP-LEDs and cluster-based LEDs by using novel chiral MNCs with aggregation-induced emission enhancement. CP-LEDs using enantiopure MNC films attain EQEs of up to 23.5%. Furthermore, by incorporating host materials, the devices yield record EQEs of up to 36.5% for both CP-LEDs and cluster-based LEDs, along with electroluminescence dissymmetry factors (|gEL|) of around 1.0 × 10–3. These findings open a new avenue for advancing chiral light sources for next-generation optoelectronics.
dc.description.reviewstatusReviewed
dc.description.scholarlevelFaculty
dc.description.sponsorshipThis work received financial support from the King Abdullah University of Science and Technology (KAUST). The authors also thank the Supercomputing Laboratory at KAUST for the computational resources. B.S. acknowledges the support from the China Scholarship Council (No. 202006070004).
dc.identifier.citationLu, J., Shao, B., Huang, R., Gutiérrez-Arzaluz, L., Chen, S., Han, Z., Yin, J., Zhu, H., Dayneko, S., Hedhili, M. N., Song, X., Yuan, P., Dong, C., Zhou, R., Saidaminov, M. I., Zang, S., Mohammed, O. F., & Bakr, O. M. (2024). High-efficiency circularly polarized light-emitting diodes based on chiral metal nanoclusters. Journal of the American Chemical Society, 146(6), 4144–4152. https://doi.org/10.1021/jacs.3c13065
dc.identifier.urihttps://doi.org/10.1021/jacs.3c13065
dc.identifier.urihttps://hdl.handle.net/1828/20979
dc.language.isoen
dc.publisherJournal of the American Chemical Society
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.departmentDepartment of Electrical and Computer Engineering
dc.titleHigh-efficiency circularly polarized light-emitting diodes based on chiral metal nanoclusters
dc.typeArticle

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