Composition engineering of lead-free double perovskites towards efficient warm white light emission for health and well-being

Zhu, Peifen; Thapa, Saroj; Zhu, Hongyang; Wheat, Stephen; Yue, Yang; Venugopal, Dilip

doi:10.1016/j.jallcom.2023.170836

Cited by 29 publications

(6 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…16 The wide full width at half-maximum (FWHM) of PL due to the self-trapped exciton is beneficial to realize highefficiency white-light emission. 17 Some lead-free perovskites are based on the elements in III−V groups and transition metals, such as Sb 3+ , 18,19 Bi 3+ , 20 and In 3+ , 21 which tend to form low-dimensional perovskites on account of the different valence states from Pb 2+ . However, the performance of lead-free perovskites is still inferior to Pb-based perovskites in stability, electrical conductivity, etc.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Moreover, double perovskites, , such as Cs 2 AgInCl 6 and Cs 2 NaInCl 6 , are formed by replacing two Pb 2+ cations with one monovalent cation and one trivalent cation . The wide full width at half-maximum (FWHM) of PL due to the self-trapped exciton is beneficial to realize high-efficiency white-light emission . Some lead-free perovskites are based on the elements in III–V groups and transition metals, such as Sb 3+ , , Bi 3+ , and In 3+ , which tend to form low-dimensional perovskites on account of the different valence states from Pb 2+ .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Crown-Assisted CsCu₂I₃ Growth and Trap Passivation for Perovskite Light-Emitting Diodes

Yang,

Tang,

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Copper (Cu)-based perovskites are promising for lead-free perovskite light-emitting diodes (PeLEDs). However, it remains a significant challenge to achieve high performance devices due to the nonradiative loss caused by the disordered crystallization and lack of passivation. Crown ethers are known to form host−guest complexes by the interaction between C−O− C groups and certain cations, and 18-crown-6 (18C6) with an appropriate complementary size can interact with Cs + and Cu + cations. Herein, we studied the interaction between CsCu 2 I 3 and two crowns with the same cyclic size, 18C6 and dibenzo-18-crown-6 (D18C6). Particularly, D18C6 can reduce the nonradiative recombination rate of CsCu 2 I 3 film by passivating the defects and optimizing the film morphology effectively. The room mean square (RMS) decreased from 5.06 to 2.95 nm, and the PLQY was promoted from 4.71% to 19.9%. Besides, D18C6 can also decrease the barrier of hole injection. The PeLEDs based on D18C6-modified CsCu 2 I 3 realized noticeable improvement with a maximum luminance and EQE of 583 cd/m 2 and 0.662%, respectively.

show abstract

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Crown-Assisted CsCu₂I₃ Growth and Trap Passivation for Perovskite Light-Emitting Diodes

Yang,

Tang,

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…35 Doping tuning in these materials has contributed to efficient warm white light emission, focusing on applications that promote health and well-being. 36 Therefore, co-doping two different ions into DHPs might be an efficient strategy for PL tuning.…”

Section: Introductionmentioning

confidence: 99%

Sb³⁺/Mn²⁺ co-doped lead-free Cs₂KYCl₆ perovskites for white light-emitting diodes

Muhammad,

Liu,

et al. 2024

J. Mater. Chem. C

View full text Add to dashboard Cite

show abstract

“…28 Zhu et al obtained white light emission by combining CsPbBr 3 NCs and Cs 2 Ag 1− x K x In 0.125 Bi 0.875 Cl 6 double perovskites. 29 The stability of double perovskites is significantly improved through K + ion alloying. However, the lower PLQY of 15.96% limited broader application.…”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent self-trapped models regulating energy transfer in rare earth double perovskites via 5s² electron doping

Tan,

Zhang,

Wang

et al. 2024

Inorg. Chem. Front.

View full text Add to dashboard Cite

show abstract

Composition engineering of lead-free double perovskites towards efficient warm white light emission for health and well-being

Cited by 29 publications

References 66 publications

Crown-Assisted CsCu₂I₃ Growth and Trap Passivation for Perovskite Light-Emitting Diodes

Crown-Assisted CsCu₂I₃ Growth and Trap Passivation for Perovskite Light-Emitting Diodes

Sb³⁺/Mn²⁺ co-doped lead-free Cs₂KYCl₆ perovskites for white light-emitting diodes

Temperature-dependent self-trapped models regulating energy transfer in rare earth double perovskites via 5s² electron doping

Contact Info

Product

Resources

About

Composition engineering of lead-free double perovskites towards efficient warm white light emission for health and well-being

Cited by 29 publications

References 66 publications

Crown-Assisted CsCu2I3 Growth and Trap Passivation for Perovskite Light-Emitting Diodes

Crown-Assisted CsCu2I3 Growth and Trap Passivation for Perovskite Light-Emitting Diodes

Sb3+/Mn2+ co-doped lead-free Cs2KYCl6 perovskites for white light-emitting diodes

Temperature-dependent self-trapped models regulating energy transfer in rare earth double perovskites via 5s2 electron doping

Contact Info

Product

Resources

About

Crown-Assisted CsCu₂I₃ Growth and Trap Passivation for Perovskite Light-Emitting Diodes

Crown-Assisted CsCu₂I₃ Growth and Trap Passivation for Perovskite Light-Emitting Diodes

Sb³⁺/Mn²⁺ co-doped lead-free Cs₂KYCl₆ perovskites for white light-emitting diodes

Temperature-dependent self-trapped models regulating energy transfer in rare earth double perovskites via 5s² electron doping