A green emitting (Ba,Ca)ScO2F:Bi3+,K+ perovskite phosphor with high efficiency and good thermal stability for LED backlight displays; Materials Advances; Vol. 3, iss. 15
| Parent link: | Materials Advances Vol. 3, iss. 15.— 2022.— [P. 6171-6178] |
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| Співавтор: | |
| Інші автори: | , , , , , , , , , |
| Резюме: | Title screen Investigating narrow-band green emitting phosphors with high efficiency and good thermal stability is the main goal of the present light-emitting diode (LED) display research. Here, Ba1−xCaxScO2F:0.001Bi3+,0.001K+ (x = 0-0.12) perovskite phosphors, emitting narrow green light excited by a 415 nm chip, were developed using the cation substitution design strategy. The effects of Ca2+ substitution for Ba2+ in the Ba1−xCaxScO2F:0.001Bi3+,0.001K+ crystal structures and photoluminescence properties were investigated. All the phosphors show the cubic perovskite-type structure in the space group Pm3m. The evolution of the cell parameters and the Ba/Ca/K/Bi-O bond lengths were evaluated. The phosphors with the internal quantum efficiency of 77.4% exhibit bright green emission peaking at 510 nm under 415 nm chip excitation. The improvement of luminescence efficiency and thermal stability was discussed in detail in relation to the local structure variation. The cation substitution design strategy mentioned here can become an important approach to realize the spectral modulation through controlling the micro-environment in the lattice for excellent LED backlight displays. |
| Мова: | Англійська |
| Опубліковано: |
2022
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| Предмети: | |
| Онлайн доступ: | https://doi.org/10.1039/D2MA00531J |
| Формат: | Електронний ресурс Частина з книги |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669170 |
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| 200 | 1 | |a A green emitting (Ba,Ca)ScO2F:Bi3+,K+ perovskite phosphor with high efficiency and good thermal stability for LED backlight displays |f Cai Mingsheng, Lang Tianchun, Han Tao [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 52 tit.] | ||
| 330 | |a Investigating narrow-band green emitting phosphors with high efficiency and good thermal stability is the main goal of the present light-emitting diode (LED) display research. Here, Ba1−xCaxScO2F:0.001Bi3+,0.001K+ (x = 0-0.12) perovskite phosphors, emitting narrow green light excited by a 415 nm chip, were developed using the cation substitution design strategy. The effects of Ca2+ substitution for Ba2+ in the Ba1−xCaxScO2F:0.001Bi3+,0.001K+ crystal structures and photoluminescence properties were investigated. All the phosphors show the cubic perovskite-type structure in the space group Pm3m. The evolution of the cell parameters and the Ba/Ca/K/Bi-O bond lengths were evaluated. The phosphors with the internal quantum efficiency of 77.4% exhibit bright green emission peaking at 510 nm under 415 nm chip excitation. The improvement of luminescence efficiency and thermal stability was discussed in detail in relation to the local structure variation. The cation substitution design strategy mentioned here can become an important approach to realize the spectral modulation through controlling the micro-environment in the lattice for excellent LED backlight displays. | ||
| 461 | |t Materials Advances | ||
| 463 | |t Vol. 3, iss. 15 |v [P. 6171-6178] |d 2022 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 701 | 0 | |a Cai Mingsheng | |
| 701 | 0 | |a Lang Tianchun | |
| 701 | 0 | |a Han Tao | |
| 701 | 1 | |a Valiev |b D. T. |c specialist in the field of material science |c Associate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1987- |g Damir Talgatovich |3 (RuTPU)RU\TPU\pers\33772 |9 17370 | |
| 701 | 0 | |a Fang Shuangqiang | |
| 701 | 0 | |a You Houjiang | |
| 701 | 0 | |a Bitao Liu | |
| 701 | 0 | |a Du Ling | |
| 701 | 0 | |a Xu Zichao | |
| 701 | 1 | |a Polisadova |b E. F. |c specialist in the field of lighting engineering |c professor of Tomsk Polytechnic University, doctor of physical and mathematical sciences |f 1972- |g Elena Fyodorovna |3 (RuTPU)RU\TPU\pers\33900 |9 17473 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа новых производственных технологий |b Отделение материаловедения |3 (RuTPU)RU\TPU\col\23508 |
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