Zephyrnet Logo

Bipolar-shell resurfacing for blue LEDs based on strongly confined perovskite quantum dots

Date:

  • 1.

    Kagan, C. R. & Murray, C. B. Charge transport in strongly coupled quantum dot solids. Nat. Nanotechnol. 10, 1013–1026 (2015).

    CAS  Article  Google Scholar 

  • 2.

    A decade of perovskite photovoltaics. Nat. Energy 4, 1 (2019).

  • 3.

    Kagan, C. R., Lifshitz, E., Sargent, E. H. & Talapin, D. V. Building devices from colloidal quantum dots. Science 353, 885–892 (2016).

    CAS  Article  Google Scholar 

  • 4.

    Kovalenko, M. V., Protesescu, L. & Bodnarchuk, M. I. Properties and potential optoelectronic applications of lead halide perovskite nanocrystals. Science 358, 745–750 (2017).

    CAS  Article  Google Scholar 

  • 5.

    Yuan, M. et al. Perovskite energy funnels for efficient light-emitting diodes. Nat. Nanotechnol. 11, 872–877 (2016).

    CAS  Article  Google Scholar 

  • 6.

    Liu, Y. et al. Efficient blue light-emitting diodes based on quantum-confined bromide perovskite nanostructures. Nat. Photon. 13, 760–764 (2019).

    CAS  Article  Google Scholar 

  • 7.

    Chiba, T. et al. Anion-exchange red perovskite quantum dots with ammonium iodine salts for highly efficient light-emitting devices. Nat. Photon. 12, 681–687 (2018).

    CAS  Article  Google Scholar 

  • 8.

    Nedelcu, G. et al. Fast anion-exchange in highly luminescent nanocrystals of cesium lead halide perovskites (CsPbX3, X = Cl, Br, I). Nano Lett. 15, 5635–5640 (2015).

    CAS  Article  Google Scholar 

  • 9.

    Akkerman, Q. A. et al. Tuning the optical properties of cesium lead halide perovskite nanocrystals by anion exchange reactions. J. Am. Chem. Soc. 137, 10276–10281 (2015).

    CAS  Article  Google Scholar 

  • 10.

    Kovalenko, M. V., Scheele, M. & Talapin, D. V. Colloidal nanocrystals with molecular metal chalcogenide surface ligands. Science 324, 1417–1420 (2009).

    CAS  Article  Google Scholar 

  • 11.

    Boles, M. A., Ling, D., Hyeon, T. & Talapin, D. V. The surface science of nanocrystals. Nat. Mater. 15, 141–153 (2016).

    CAS  Article  Google Scholar 

  • 12.

    Bodnarchuk, M. I. et al. Rationalizing and controlling the surface structure and electronic passivation of cesium lead halide nanocrystals. ACS Energy Lett. 4, 63–74 (2019).

    CAS  Article  Google Scholar 

  • 13.

    De Roo, J. et al. Highly dynamic ligand binding and light absorption coefficient of cesium lead bromide perovskite nanocrystals. ACS Nano. 10, 2071–2081 (2016).

    Article  Google Scholar 

  • 14.

    Krieg, F. et al. Colloidal CsPbX3 (X = Cl, Br, I) nanocrystals 2.0: zwitterionic capping ligands for improved durability and stability. ACS Energy Lett. 3, 641–646 (2018).

    CAS  Article  Google Scholar 

  • 15.

    Dong, Y. et al. Precise control of quantum confinement in cesium lead halide perovskite quantum dots via thermodynamic equilibrium. Nano Lett. 18, 3716–3722 (2018).

    CAS  Article  Google Scholar 

  • 16.

    Nenon, D. P. et al. Design principles for trap-free CsPbX3 nanocrystals: enumerating and eliminating surface halide vacancies with softer Lewis bases. J. Am. Chem. Soc. 140, 17760–17772 (2018).

    CAS  Article  Google Scholar 

  • 17.

    Pan, J. et al. Highly efficient perovskite-quantum-dot light-emitting diodes by surface engineering. Adv. Mater. 28, 8718–8725 (2016).

    CAS  Article  Google Scholar 

  • 18.

    Wu, K. et al. Ultrafast interfacial electron and hole transfer from CsPbBr3 perovskite quantum dots. J. Am. Chem. Soc. 137, 12792–12795 (2015).

    CAS  Article  Google Scholar 

  • 19.

    Becker, M. A. et al. Bright triplet excitons in caesium lead halide perovskites. Nature 553, 189–193 (2018).

    CAS  Article  Google Scholar 

  • 20.

    Tao, S. et al. Absolute energy level positions in tin- and lead-based halide perovskites. Nat. Commun. 10, 2560 (2019).

    Article  Google Scholar 

  • 21.

    Gong, X. et al. Contactless measurements of photocarrier transport properties in perovskite single crystals. Nat. Commun. 10, 1591 (2019).

    Article  Google Scholar 

  • 22.

    Whitham, K. et al. Charge transport and localization in atomically coherent quantum dot solids. Nat. Mater. 15, 557–563 (2016).

    CAS  Article  Google Scholar 

  • 23.

    Li, Z. et al. Modulation of recombination zone position for quasi-two-dimensional blue perovskite light-emitting diodes with efficiency exceeding 5%. Nat. Commun. 10, 1027 (2019).

    Article  Google Scholar 

  • 24.

    Leijtens, T. et al. Carrier trapping and recombination: the role of defect physics in enhancing the open circuit voltage of metal halide perovskite solar cells. Energy Environ. Sci. 9, 3472–3481 (2016).

    CAS  Article  Google Scholar 

  • 25.

    Hou, S., Gangishetty, M. K., Quan, Q. & Congreve, D. N. Efficient blue and white perovskite light-emitting diodes via manganese doping. Joule 2, 2421–2433 (2018).

    CAS  Article  Google Scholar 

  • 26.

    Xing, J. et al. Color-stable highly luminescent sky-blue perovskite light-emitting diodes. Nat. Commun. 9, 3541 (2018).

    Article  Google Scholar 

  • 27.

    Chiba, T. et al. High-efficiency perovskite quantum-dot light-emitting devices by effective washing process and interfacial energy level alignment. ACS Appl. Mater. Interfaces 9, 18054–18060 (2017).

    CAS  Article  Google Scholar 

  • 28.

    Gong, X. et al. Highly efficient quantum dot near-infrared light-emitting diodes. Nat. Photon. 10, 253–257 (2016).

    CAS  Article  Google Scholar 

  • 29.

    Shen, H. et al. Visible quantum dot light-emitting diodes with simultaneous high brightness and efficiency. Nat. Photon. 13, 192–197 (2019).

    CAS  Article  Google Scholar 

  • 30.

    Lee, W. et al. Ultralow thermal conductivity in all-inorganic halide perovskites. Proc. Natl Acad. Sci. USA 114, 8693–8697 (2017).

    CAS  Article  Google Scholar 

  • 31.

    Maes, J. et al. Light absorption coefficient of CsPbBr3 perovskite nanocrystals. J. Phys. Chem. Lett. 9, 3093–3097 (2018).

    CAS  Article  Google Scholar 

  • 32.

    de Mello, J. C., Wittmann, H. F. & Friend, R. H. An improved experimental determination of external photoluminescence quantum efficiency. Adv. Mater. 9, 230–232 (1997).

    Article  Google Scholar 

  • 33.

    Ilavsky, J. Nika: software for two-dimensional data reduction. J. Appl. Crystallogr. 45, 324–328 (2012).

    CAS  Article  Google Scholar 

  • 34.

    Jiang, Z. GIXSGUI: a MATLAB toolbox for grazing-incidence X-ray scattering data visualization and reduction, and indexing of buried three-dimensional periodic nanostructured films. J. Appl. Crystallogr. 48, 917–926 (2015).

    CAS  Article  Google Scholar 

  • 35.

    Proppe, A. H. et al. Picosecond charge transfer and long carrier diffusion lengths in colloidal quantum dot solids. Nano Lett. 18, 7052–7059 (2018).

    CAS  Article  Google Scholar 

  • 36.

    Cademartiri, L. et al. Size-dependent extinction coefficients of PbS quantum dots. J. Am. Chem. Soc. 128, 10337–10346 (2006).

    CAS  Article  Google Scholar 

  • Source: https://www.nature.com/articles/s41565-020-0714-5

    spot_img

    Latest Intelligence

    spot_img

    Chat with us

    Hi there! How can I help you?