التفاصيل البيبلوغرافية
| العنوان: |
Tuning Emission from Greenish to Blue via Chemical Composition Modulation in Solid Solutions (Sr 1– y Ca y ) 2 Sb 2 O 7 :Bi 3+ under near-UV Light Excitation |
| المؤلفون: |
Dan Zhao (285025), Ya-Nan Li (1812076), Rui-Juan Zhang (142954), Bao-Zhong Liu (8956865), Qing-Xia Yao (2392273) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biochemistry, Microbiology, Physiology, Plant Biology, Environmental Sciences not elsewhere classified, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, 528 nm, Tuning Emission, Bi, Sr 2 Sb 2 O 7 host, nephelauxetic effect, 365 nm UV chip, Chemical Composition Modulation, host lattices, near-UV Light Excitation, quantum efficiency, 2 energy level, phosphor CaAlSiN 3, antimonate phosphor, 2 Sb 2 O 7, IQE, design insights, torsion resistance, host lattice, coordination environment, Solid Solutions |
| الوصف: |
The Bi 3+ ion, with an exposed 6s 2 energy level sensitive for an external coordination environment, possesses complex and intriguing luminescent properties in various host lattices. Herein, we successfully prepared a new type of antimonate phosphor (Sr 1– y Ca y ) 2 Sb 2 O 7 :Bi 3+ with controllable color emitting properties from greenish to blue stimulated by near-ultraviolet (UV) light. There are two emitting bands at 495 and 528 nm that go along with two crystallographic distinct Bi 3+ sites in the Sr 2 Sb 2 O 7 host. With increasing Ca constituents, enhancement of torsion resistance and the nephelauxetic effect would lead to the blue-shift of emitting bands. The internal quantum efficiency (IQE) of Sr 2 Sb 2 O 7 :0.03 Bi 3+ and Ca 2 Sb 2 O 7 :0.03 Bi 3+ was measured to be 51% and 62%, respectively. Finally, a white illuminating lamp was produced by using a 365 nm UV chip, blue phosphor Ca 2 Sb 2 O 7 :0.03 Bi 3+ , greenish phosphor Sr 2 Sb 2 O 7 :0.03 Bi 3+ , and red phosphor CaAlSiN 3 :Eu 2+ . This work can provide design insights into turning the emitting colors of Bi 3+ doped phosphor by chemical composition modulation of the host lattice. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Tuning_Emission_from_Greenish_to_Blue_via_Chemical_Composition_Modulation_in_Solid_Solutions_Sr_sub_1_i_y_i_sub_Ca_sub_i_y_i_sub_sub_2_sub_Sb_sub_2_sub_O_sub_7_sub_Bi_sup_3_sup_under_near-UV_Light_Excitation/14666435 |
| DOI: |
10.1021/acssuschemeng.1c01396.s001 |
| الاتاحة: |
https://doi.org/10.1021/acssuschemeng.1c01396.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.7863E0A4 |
| قاعدة البيانات: |
BASE |