Synergistic Effect of Cation Composition Engineering of Hybrid Cs1-x FAx PbBr3 Nanocrystals for Self-Healing Electronics Application

© 2023 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 9 vom: 10. März, Seite e2207617
1. Verfasser: Liang, Fang-Cheng (VerfasserIn)
Weitere Verfasser: Jhuang, Fu-Cheng, Fang, Yu-Han, Benas, Jean-Sebastien, Chen, Wei-Cheng, Yan, Zhen-Li, Lin, Wei-Chun, Su, Chun-Jen, Sato, Yuki, Chiba, Takayuki, Kido, Junji, Kuo, Chi-Ching
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article A-site cations laser light-emitting diodes nanocrystals self-healing soft-electronic backlight
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520 |a Mixed-cation hybrid perovskite nanocrystal (HPNC) with high crystallinity, color purity, and tunable optical bandgap offers a practical pathway toward next-generation displays. Herein, a two-step modified hot-injection combined with cation compositional engineering and surface treatment to synthesize high-purity cesium/formamidinium lead bromide HPNCs(Cs1-x FAx PbBr3 ) is presented. The optimized Cs0.5 FA0.5 PbBr3 light-emitting devices (LEDs) exhibit uniform luminescence of 3500 cd m-2 and a prominent current efficiency of 21.5 cd A-1 . As a proof of concept, a self-healing polymer (SHP) integrated with white LED backlight and laser prototypes exhibited 4 h autonomous self-healing through the synergistic effect of weak reversible imine bonds and stronger H-bonds. First, the SHP-HPNCs-initial and SHP-HPNCs-cut possess high long-term stability and dramatically suppressed lead leakage as low as 0.6 ppm along with a low leakage rate of 1.11 × 10-5 cm2 and 3.36 × 10-5 cm2 even over 6 months in water. Second, the Cs0.5 FA0.5 PbBr3 HPNCs and SHP-induced shattered-repaired perovskite glass substrate show the lowest lasing threshold values of 1.24 and 8.58 µJ cm-2 , respectively. This work provides an integrative and in-depth approach to exploiting SHP with intrinsic and entropic self-healing capabilities combined with HPNCs to develop robust and reliable soft-electronic backlight and laser applications 
650 4 |a Journal Article 
650 4 |a A-site cations 
650 4 |a laser 
650 4 |a light-emitting diodes 
650 4 |a nanocrystals 
650 4 |a self-healing 
650 4 |a soft-electronic backlight 
700 1 |a Jhuang, Fu-Cheng  |e verfasserin  |4 aut 
700 1 |a Fang, Yu-Han  |e verfasserin  |4 aut 
700 1 |a Benas, Jean-Sebastien  |e verfasserin  |4 aut 
700 1 |a Chen, Wei-Cheng  |e verfasserin  |4 aut 
700 1 |a Yan, Zhen-Li  |e verfasserin  |4 aut 
700 1 |a Lin, Wei-Chun  |e verfasserin  |4 aut 
700 1 |a Su, Chun-Jen  |e verfasserin  |4 aut 
700 1 |a Sato, Yuki  |e verfasserin  |4 aut 
700 1 |a Chiba, Takayuki  |e verfasserin  |4 aut 
700 1 |a Kido, Junji  |e verfasserin  |4 aut 
700 1 |a Kuo, Chi-Ching  |e verfasserin  |4 aut 
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773 1 8 |g volume:35  |g year:2023  |g number:9  |g day:10  |g month:03  |g pages:e2207617 
856 4 0 |u http://dx.doi.org/10.1002/adma.202207617  |3 Volltext 
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