%0 Journal Article %1 doi:10.1021/acs.jpclett.7b01562 %A Chen, Ping %A Xiong, Ziyang %A Wu, Xiaoyan %A Shao, Ming %A Meng, Yan %A Xiong, Zu-hong %A Gao, Chunhong %D 2017 %J The Journal of Physical Chemistry Letters %K LED additives perovskite recombination %N 0 %P 3961-3969 %R 10.1021/acs.jpclett.7b01562 %T Nearly 100\% Efficiency Enhancement of CH3NH3PbBr3 Perovskite Light-Emitting Diodes by Utilizing Plasmonic Au Nanoparticles %U http://dx.doi.org/10.1021/acs.jpclett.7b01562 %V 0 %X Organic–inorganic hybrid perovskites have drawn considerable attention due to their great potentials in lighting and displaying. Despite great progress being demonstrated in perovskites light-emitting diodes (PeLEDs), the commercialization of PeLEDs was still limited by their low efficiencies and poor device stabilities. Utilizing the metallic nanoparticles was a feasible way to further improve the efficiencies of PeLEDs. Herein, substantially enhanced electroluminescent performance of CH3NH3PbBr3-based PeLEDs were first demonstrated by incorporating plasmonic gold nanoparticles (Au NPs) into the hole injection layer of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Compared to the reference device without Au NPs, 109\% enhancement in maximum luminance and 97\% enhancement in maximum EQE were achieved upon 9 vol \% Au NPs doping. Such enhancements can be ascribed to the localized surface plasmon resonance between Au NPs and CH3NH3PbBr3 excitons, as well as the enhanced electrical conductivity of modified PEDOT:PSS. Our studies indicated great potential of Au NPs in developing highly efficient PeLEDs.

@article{doi:10.1021/acs.jpclett.7b01562, abstract = { Organic–inorganic hybrid perovskites have drawn considerable attention due to their great potentials in lighting and displaying. Despite great progress being demonstrated in perovskites light-emitting diodes (PeLEDs), the commercialization of PeLEDs was still limited by their low efficiencies and poor device stabilities. Utilizing the metallic nanoparticles was a feasible way to further improve the efficiencies of PeLEDs. Herein, substantially enhanced electroluminescent performance of CH3NH3PbBr3-based PeLEDs were first demonstrated by incorporating plasmonic gold nanoparticles (Au NPs) into the hole injection layer of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Compared to the reference device without Au NPs, 109\% enhancement in maximum luminance and 97\% enhancement in maximum EQE were achieved upon 9 vol \% Au NPs doping. Such enhancements can be ascribed to the localized surface plasmon resonance between Au NPs and CH3NH3PbBr3 excitons, as well as the enhanced electrical conductivity of modified PEDOT:PSS. Our studies indicated great potential of Au NPs in developing highly efficient PeLEDs. }, added-at = {2017-08-14T11:36:38.000+0200}, author = {Chen, Ping and Xiong, Ziyang and Wu, Xiaoyan and Shao, Ming and Meng, Yan and Xiong, Zu-hong and Gao, Chunhong}, biburl = {https://www.bibsonomy.org/bibtex/2776aa43032722b750e98fa69bbd9bd0d/cgoehler}, description = {research 1..9 - acs.jpclett.7b01562}, doi = {10.1021/acs.jpclett.7b01562}, eprint = {http://dx.doi.org/10.1021/acs.jpclett.7b01562}, interhash = {612c372b7b978d823e2bb3940c2be39c}, intrahash = {776aa43032722b750e98fa69bbd9bd0d}, journal = {The Journal of Physical Chemistry Letters}, keywords = {LED additives perovskite recombination}, note = {PMID: 28786674}, number = 0, pages = {3961-3969}, timestamp = {2017-08-14T11:36:38.000+0200}, title = {Nearly 100\% Efficiency Enhancement of CH3NH3PbBr3 Perovskite Light-Emitting Diodes by Utilizing Plasmonic Au Nanoparticles}, url = {http://dx.doi.org/10.1021/acs.jpclett.7b01562}, volume = 0, year = 2017 }