K-Alloyed Lead-free Double-Perovskite Cs2AgBiBr6 Nanocrystals for Use in Light-Emitting Diodes DOI
R. Sun,

Wangsheng Jiang,

Song Wang

и другие.

ACS Applied Nano Materials, Год журнала: 2023, Номер 6(16), С. 15247 - 15254

Опубликована: Авг. 14, 2023

Lead-free double-perovskite nanocrystals (NCs) have emerged as a promising material to address the issues of instability and toxicity associated with lead-based materials. Metal ion doping or alloying strategies been widely used tailor optimize optical electrical properties semiconductor In this study, we prepared monodisperse Cs2AgBiBr6 NCs uniform morphology (8 ± 1 nm) excellent crystallinity using thermal injection method. Compared photoluminescence quantum yield (PLQY) (∼0.4%), highest PLQY Cs2Ag0.64K0.36BiBr6 reached 6.82%, an extended exciton lifetime from 2.08 10.64 ns, which is approximately 5.1 times longer. The binding energy (Eb) longitudinal phonon (ℏωop) were measured be 197.9 31.7 meV, respectively. For NCs, values Eb ℏωop determined 317.6 53.1 These results indicate that nonradiative recombination in weaker compared resulting improved PLQY. K+-alloyed exhibit potential for application light-emitting diodes.

Язык: Английский

Bi3+/Sb3+-doped Cs2Na (Yb/Er) Cl6 double perovskite nanocrystals: Fabrication, optical properties and temperature sensing DOI
Zewen Wang,

Yuxin Wang,

Yuhan Jing

и другие.

Journal of Luminescence, Год журнала: 2023, Номер 267, С. 120389 - 120389

Опубликована: Дек. 14, 2023

Язык: Английский

Процитировано

12
Rare earth-based halide double perovskite phosphor Cs2NaScCl6: Yb3+, Er3+ for multi-mode anti-counterfeiting application DOI

Ruibo Gao,

Changheng Chen,

Minkun Jin

и другие.

Materials Research Bulletin, Год журнала: 2023, Номер 172, С. 112651 - 112651

Опубликована: Дек. 23, 2023

Язык: Английский

Процитировано

12
The luminescence modulation of rare earth-doped/containing lead-free double perovskites toward multifunctional applications: a review DOI
Haiyan Wang, Jiandong Yao,

Ruosheng Zeng

и другие.

Nanoscale, Год журнала: 2024, Номер 16(14), С. 6837 - 6852

Опубликована: Янв. 1, 2024

This review summarized the optical performances of RE doped/containing lead-free DPs, which involve extension luminescence range, improvement PLQY, realization multi-mode excitation and multi-color emission.

Язык: Английский

Процитировано

5
Excitation power regulated up-conversion luminescence chroma of lanthanide double-perovskite Cs2NaLnCl6 (Ln = Ho3+, Er3+, Tm3+) microcrystals DOI
Kairui Zhang, Ting Li, Haiying Cheng

и другие.

Journal of Alloys and Compounds, Год журнала: 2024, Номер 990, С. 174410 - 174410

Опубликована: Апрель 5, 2024

Язык: Английский

Процитировано

5
K-Alloyed Lead-free Double-Perovskite Cs2AgBiBr6 Nanocrystals for Use in Light-Emitting Diodes DOI
R. Sun,

Wangsheng Jiang,

Song Wang

и другие.

ACS Applied Nano Materials, Год журнала: 2023, Номер 6(16), С. 15247 - 15254

Опубликована: Авг. 14, 2023

Lead-free double-perovskite nanocrystals (NCs) have emerged as a promising material to address the issues of instability and toxicity associated with lead-based materials. Metal ion doping or alloying strategies been widely used tailor optimize optical electrical properties semiconductor In this study, we prepared monodisperse Cs2AgBiBr6 NCs uniform morphology (8 ± 1 nm) excellent crystallinity using thermal injection method. Compared photoluminescence quantum yield (PLQY) (∼0.4%), highest PLQY Cs2Ag0.64K0.36BiBr6 reached 6.82%, an extended exciton lifetime from 2.08 10.64 ns, which is approximately 5.1 times longer. The binding energy (Eb) longitudinal phonon (ℏωop) were measured be 197.9 31.7 meV, respectively. For NCs, values Eb ℏωop determined 317.6 53.1 These results indicate that nonradiative recombination in weaker compared resulting improved PLQY. K+-alloyed exhibit potential for application light-emitting diodes.

Язык: Английский

Процитировано

11