A thermally stable narrow-band green phosphor Na2MgAl10O17: Eu2+, Mn2+ for NUV LED application

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A thermally stable narrow-band green phosphor Na2MgAl10O17: Eu2+, Mn2+ for NUV LED application. / Zhang, Jiahui; Huang, Wenjing; Zeng, Linyun; Li, Chunli; Kolesnikov, Ilya E.; Umar, Zafari; Chen, Peican; Zhou, Liya; Liu, Wei; Zhang, Xinguo.

In: Ceramics International, Vol. 50, 15.11.2024, p. 47604–47611.

Research output: Contribution to journal › Article › peer-review

Author

Zhang, Jiahui ; Huang, Wenjing ; Zeng, Linyun ; Li, Chunli ; Kolesnikov, Ilya E. ; Umar, Zafari ; Chen, Peican ; Zhou, Liya ; Liu, Wei ; Zhang, Xinguo. / A thermally stable narrow-band green phosphor Na2MgAl10O17: Eu2+, Mn2+ for NUV LED application. In: Ceramics International. 2024 ; Vol. 50. pp. 47604–47611.

BibTeX

@article{47d6ea3b97b943d49ecce859c1afc48b,

title = "A thermally stable narrow-band green phosphor Na2MgAl10O17: Eu2+, Mn2+ for NUV LED application",

abstract = "Thermally stable narrow-band green phosphor is important for phosphor-converted light emitting diodes (pc-LEDs). Herein, an efficient and stable Na2MgAl10O17: Eu2+, Mn2+ green phosphor is obtained using Eu2+-Mn2+ energy transfer strategy. The Mn2+ activator could be effectively sensitized by the addition of Eu2+ with significant UV absorption enhancement, then generates a bright green emission with peak at 515 nm and FWHM of 40 nm. The internal and external quantum efficiencies of optimal phosphor Na2MgAl10O17: 0.15Eu2+, 0.50Mn2+ are measured as 69.5 and 30.8 %, respectively. It is found that Na2MgAl10O17: Eu2+, Mn2+ phosphor shows good chemical and thermal stability, i.e. maintains no quenching after H2O/HCl soaking and keeps 90 % of RT intensity at 200 °C. By using Na2MgAl10O17: Eu2+, Mn2+ as converted phosphor, single-chromatic and white pc-LEDs were fabricated, which simultaneously achieve green and white emission with high brightness. Our results show that this Na2MgAl10O17: Eu2+, Mn2+ is a potential candidate as a thermally stable green phosphor for white LEDs.",

keywords = "Green phosphor, Mn2+ sensitization, Thermally stable emission, White LEDs",

author = "Jiahui Zhang and Wenjing Huang and Linyun Zeng and Chunli Li and Kolesnikov, {Ilya E.} and Zafari Umar and Peican Chen and Liya Zhou and Wei Liu and Xinguo Zhang",

year = "2024",

month = nov,

day = "15",

doi = "10.1016/j.ceramint.2024.09.106",

language = "English",

volume = "50",

pages = "47604–47611",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - A thermally stable narrow-band green phosphor Na2MgAl10O17: Eu2+, Mn2+ for NUV LED application

AU - Zhang, Jiahui

AU - Huang, Wenjing

AU - Zeng, Linyun

AU - Li, Chunli

AU - Kolesnikov, Ilya E.

AU - Umar, Zafari

AU - Chen, Peican

AU - Zhou, Liya

AU - Liu, Wei

AU - Zhang, Xinguo

PY - 2024/11/15

Y1 - 2024/11/15

N2 - Thermally stable narrow-band green phosphor is important for phosphor-converted light emitting diodes (pc-LEDs). Herein, an efficient and stable Na2MgAl10O17: Eu2+, Mn2+ green phosphor is obtained using Eu2+-Mn2+ energy transfer strategy. The Mn2+ activator could be effectively sensitized by the addition of Eu2+ with significant UV absorption enhancement, then generates a bright green emission with peak at 515 nm and FWHM of 40 nm. The internal and external quantum efficiencies of optimal phosphor Na2MgAl10O17: 0.15Eu2+, 0.50Mn2+ are measured as 69.5 and 30.8 %, respectively. It is found that Na2MgAl10O17: Eu2+, Mn2+ phosphor shows good chemical and thermal stability, i.e. maintains no quenching after H2O/HCl soaking and keeps 90 % of RT intensity at 200 °C. By using Na2MgAl10O17: Eu2+, Mn2+ as converted phosphor, single-chromatic and white pc-LEDs were fabricated, which simultaneously achieve green and white emission with high brightness. Our results show that this Na2MgAl10O17: Eu2+, Mn2+ is a potential candidate as a thermally stable green phosphor for white LEDs.

AB - Thermally stable narrow-band green phosphor is important for phosphor-converted light emitting diodes (pc-LEDs). Herein, an efficient and stable Na2MgAl10O17: Eu2+, Mn2+ green phosphor is obtained using Eu2+-Mn2+ energy transfer strategy. The Mn2+ activator could be effectively sensitized by the addition of Eu2+ with significant UV absorption enhancement, then generates a bright green emission with peak at 515 nm and FWHM of 40 nm. The internal and external quantum efficiencies of optimal phosphor Na2MgAl10O17: 0.15Eu2+, 0.50Mn2+ are measured as 69.5 and 30.8 %, respectively. It is found that Na2MgAl10O17: Eu2+, Mn2+ phosphor shows good chemical and thermal stability, i.e. maintains no quenching after H2O/HCl soaking and keeps 90 % of RT intensity at 200 °C. By using Na2MgAl10O17: Eu2+, Mn2+ as converted phosphor, single-chromatic and white pc-LEDs were fabricated, which simultaneously achieve green and white emission with high brightness. Our results show that this Na2MgAl10O17: Eu2+, Mn2+ is a potential candidate as a thermally stable green phosphor for white LEDs.

KW - Green phosphor

KW - Mn2+ sensitization

KW - Thermally stable emission

KW - White LEDs

UR - https://www.mendeley.com/catalogue/3d8109a6-306e-371f-a980-64fcc6f25e0e/

U2 - 10.1016/j.ceramint.2024.09.106

DO - 10.1016/j.ceramint.2024.09.106

M3 - Article

VL - 50

SP - 47604

EP - 47611

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

ER -

ID: 126136442