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Highly Efficient Light-Emitting Diodes of Colloidal Metal–Halide Perovskite Nanocrystals beyond Quantum Size
Open accessAbstract
Colloidal metal–halide perovskite quantum dots (QDs) with a dimension less than the exciton Bohr diameter D B (quantum size regime) emerged as promising light emitters due to their spectrally narrow light, facile color tuning, and high photoluminescence quantum efficiency (PLQE). However, their size-sensitive emission wavelength and color purity and low electroluminescence efficiency are still challenging aspects. Here, we demonstrate highly efficient light-emitting diodes (LEDs) based on the colloidal perovskite nanocrystals (NCs) in a dimension > D B (regime beyond quantum size) by using a multifunctional buffer hole injection layer (Buf-HIL). The perovskite NCs with a dimension greater than D B show a size-irrespective high color purity and PLQE by managing the recombination of excitons occurring at surface traps and inside the NCs. The Buf-HIL composed of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS) and perfluorinated ionomer induces uniform perovskite particle films with complete film coverage and prevents exciton quenching at the PEDOT:PSS/perovskite particle film interface. With these strategies, we achieved a very high PLQE (∼60.5%) in compact perovskite particle films without any complex post-treatments and multilayers and a high current efficiency of 15.5 cd/A in the LEDs of colloidal perovskite NCs, even in a simplified structure, which is the highest efficiency to date in green LEDs that use colloidal organic–inorganic metal–halide perovskite nanoparticles including perovskite QDs and NCs. These results can help to guide development of various light-emitting optoelectronic applications based on perovskite NCs.
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Cites
Bright light-emitting diodes based on organometal halide perovskite
Tan, Z.-K., Moghaddam, R. S., Lai, M. L., Docampo, P., Higler, R., Deschler, F., Price, M., Sadhanala, A., Pazos, L. M., Credgington, D., et al. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2014.149 · Cited by 4,450
Self-citationElectronic wave functions in semiconductor clusters: experiment and theory
Brus, L. (1986) · The Journal of Physical Chemistry · doi:10.1021/j100403a003 · Cited by 3,276
Overcoming the electroluminescence efficiency limitations of perovskite light-emitting diodes
Cho, H., Jeong, S.-H., Park, M.-H., Kim, Y.-H., Wolf, C., Lee, C.-L., Heo, J. H., Sadhanala, A., Myoung, N., Yoo, S., et al. (2015) · Science · doi:10.1126/science.aad1818 · Cited by 2,925
Self-citationZhang, F., Zhong, H., Chen, C., Wu, X.-G., Hu, X., Huang, H., Han, J., Zou, B., & Dong, Y. (2015) · ACS Nano · doi:10.1021/acsnano.5b01154 · Cited by 2,431
Impact of microstructure on local carrier lifetime in perovskite solar cells
de Quilettes, D. W., Vorpahl, S. M., Stranks, S. D., Nagaoka, H., Eperon, G. E., Ziffer, M. E., Snaith, H. J., & Ginger, D. S. (2015) · Science · doi:10.1126/science.aaa5333 · Cited by 2,198
Growth of CH3NH3PbI3 cuboids with controlled size for high-efficiency perovskite solar cells
Im, J.-H., Jang, I.-H., Pellet, N., Grätzel, M., & Park, N.-G. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2014.181 · Cited by 1,759
Efficient perovskite light-emitting diodes featuring nanometre-sized crystallites
Xiao, Z., Kerner, R. A., Zhao, L., Tran, N. L., Lee, K. M., Koh, T.-W., Scholes, G. D., & Rand, B. P. (2017) · Nature Photonics · doi:10.1038/nphoton.2016.269 · Cited by 1,374
Nontemplate Synthesis of CH3NH3PbBr3 Perovskite Nanoparticles
Schmidt, L. C., Pertegás, A., González-Carrero, S., Malinkiewicz, O., Agouram, S., Mínguez Espallargas, G., Bolink, H. J., Galian, R. E., & Pérez-Prieto, J. (2014) · Journal of the American Chemical Society · doi:10.1021/ja4109209 · Cited by 1,327
Multicolored Organic/Inorganic Hybrid Perovskite Light‐Emitting Diodes
Kim, Y., Cho, H., Heo, J. H., Kim, T., Myoung, N., Lee, C., Im, S. H., & Lee, T. (2015) · Advanced Materials · doi:10.1002/adma.201403751 · Cited by 1,273
Self-citationLi, J., Xu, L., Wang, T., Song, J., Chen, J., Xue, J., Dong, Y., Cai, B., Shan, Q., Han, B., et al. (2017) · Advanced Materials · doi:10.1002/adma.201603885 · Cited by 1,176
Cited by
Perovskite light-emitting diodes with external quantum efficiency exceeding 20 per cent
Lin, K., Xing, J., Quan, L. N., de Arquer, F. P. G., Gong, X., Lu, J., Xie, L., Zhao, W., Zhang, D., Yan, C., et al. (2018) · Nature · doi:10.1038/s41586-018-0575-3 · Cited by 3,355
Perovskites for Next-Generation Optical Sources
Quan, L. N., Rand, B. P., Friend, R. H., Mhaisalkar, S. G., Lee, T.-W., & Sargent, E. H. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.9b00107 · Cited by 983
Self-citationYao, J.-S., Ge, J., Han, B.-N., Wang, K.-H., Yao, H.-B., Yu, H.-L., Li, J.-H., Zhu, B.-S., Song, J.-Z., Chen, C., et al. (2018) · Journal of the American Chemical Society · doi:10.1021/jacs.7b11955 · Cited by 549
Zn-Alloyed CsPbI3 Nanocrystals for Highly Efficient Perovskite Light-Emitting Devices
Shen, X., Zhang, Y., Kershaw, S. V., Li, T., Wang, C., Zhang, X., Wang, W., Li, D., Wang, Y., Lu, M., et al. (2019) · Nano Letters · doi:10.1021/acs.nanolett.8b04339 · Cited by 532
Improving the Stability of Metal Halide Perovskite Materials and Light‐Emitting Diodes
Cho, H., Kim, Y., Wolf, C., Lee, H., & Lee, T. (2018) · Advanced Materials · doi:10.1002/adma.201704587 · Cited by 470
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Metadata
- Authors
- Kim, Y.-H., Wolf, C., Kim, Y.-T., Cho, H., Kwon, W., Do, S., Sadhanala, A., Park, C. G., Rhee, S.-W., Im, S. H., Friend, R. H., & Lee, T.-W.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-06-22
- Volume
- 11
- Issue
- 7
- Pages
- 6586-6593
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2622010062
- Cited by
- 375
- References
- 33
- FWCI
- 20.47
- Type
- journal article
- Language
- en
- Open access
- green
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- Kim, Y.-H., Wolf, C., Kim, Y.-T., Cho, H., Kwon, W., Do, S., Sadhanala, A., Park, C. G., Rhee, S.-W., Im, S. H., Friend, R. H., & Lee, T.-W. (2017). Highly Efficient Light-Emitting Diodes of Colloidal Metal–Halide Perovskite Nanocrystals beyond Quantum Size. ACS Nano. https://doi.org/10.1021/acsnano.6b07617
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