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author:

Ye, Y. (Ye, Y..) [1] | Cui, Z. (Cui, Z..) [2] | Yang, Z. (Yang, Z..) [3] | Zeng, Z. (Zeng, Z..) [4] | Meng, Z. (Meng, Z..) [5] | Hong, H. (Hong, H..) [6] | Ye, S. (Ye, S..) [7] | Cheng, Z. (Cheng, Z..) [8] | Lan, Q. (Lan, Q..) [9] | Wang, J. (Wang, J..) [10] | Chen, Y. (Chen, Y..) [11] | Zhang, H. (Zhang, H..) [12] | Bai, Y. (Bai, Y..) [13] | Hong, J. (Hong, J..) [15] | Jiang, X. (Jiang, X..) [16] | Liu, B. (Liu, B..) [17] | Sa, B. (Sa, B..) [18] | Li, F. (Li, F..) [19] | Guo, T. (Guo, T..) [20] | Weng, Z. (Weng, Z..) [21]

Indexed by:

Scopus

Abstract:

Domain distribution, defect density as well as carrier transport all exert some great impact on the performance of quasi-two-dimensional (quasi-2D) perovskites light emitting diodes (PeLEDs). Herein, the novelty multifunctional metformin hydrochloride (MFCl) buried passivated layer was introduced to optimize the crystal dynamics, surface morphology, and electro-luminescent properties of the quasi-2D perovskites. On the one hand, MF ion to some extent optimized the domain distribution just by both decreasing the n = 2 phase and increasing the three-dimensional (3D) phase, which facilitated the charge funnelling. On the other hand, by combining MFCl with PSS or PSS-Na, the energy level of the hole transport layer was effectively adjusted, resulting in an obvious reduction of the injection barrier. As a result, the MFCl-optimized blue quasi-2D PeLEDs with the maximum external quantum efficiency of 5.22 % was achieved, which is 3.6 times higher than that of the device without the MFCl treatment. This work provided favourable strategy for the performance enhancement of blue quasi-2D PeLEDs, in which a multifunction interface was introduced to synchronously improve the phase distribution as well as the defect passivation of quasi-2D perovskite, meanwhile all of those further promoted the charge transportation. © 2024 Elsevier B.V.

Keyword:

Blue emitting device Multifunctional Interface Oriented Crystallization Quasi-2D Perovskite

Community:

  • [ 1 ] [Ye Y.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Cui Z.]Multiscale Computational Materials Facility, and Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350100, China
  • [ 3 ] [Yang Z.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Yang Z.]Mindu Innovation Laboratory, Fujian Science & Technology Innovation Laboratory For Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 5 ] [Zeng Z.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Meng Z.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Hong H.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 8 ] [Ye S.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 9 ] [Cheng Z.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 10 ] [Lan Q.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 11 ] [Wang J.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 12 ] [Chen Y.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 13 ] [Zhang H.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 14 ] [Bai Y.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 15 ] [Yang Z.]Mindu Innovation Laboratory, Fujian Science & Technology Innovation Laboratory For Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 16 ] [Hong J.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 17 ] [Jiang X.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 18 ] [Liu B.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 19 ] [Sa B.]Multiscale Computational Materials Facility, and Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350100, China
  • [ 20 ] [Li F.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 21 ] [Li F.]Mindu Innovation Laboratory, Fujian Science & Technology Innovation Laboratory For Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 22 ] [Guo T.]National & Local United Engineering Laboratory of Flat Panel Display Technology, Fuzhou University, Fuzhou, 350108, China
  • [ 23 ] [Guo T.]Mindu Innovation Laboratory, Fujian Science & Technology Innovation Laboratory For Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 24 ] [Weng Z.]Department of Physics, School of Physics and Information Engineering, Fuzhou University, China
  • [ 25 ] [Chen Y.]Department of Physics, School of Physics and Information Engineering, Fuzhou University, China

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Source :

Chemical Engineering Journal

ISSN: 1385-8947

Year: 2024

Volume: 483

1 3 . 4 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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