TY - JOUR
T1 - Program controlling the emission color of blend polymer phosphors containing Eu(III), Tb(III), Be(II) ions for WLEDs
AU - Zhang, Aiqin
AU - Xu, Wei
AU - Chen, Ruibo
AU - Wang, Zhi
AU - Yan, Qian
AU - Miao, Yanqin
AU - Jia, Husheng
AU - Xu, Bingshe
AU - Wong, Wai Yeung
N1 - Funding Information:
This work was funded by Key research and development program of Shanxi Province ( 201803D31042 ); National Natural Science Funds ( 21471111 ); Key research and development program of Shanxi Province ( 201803D31042 ); Natural Science Foundation of Shanxi Province ( 201601D102020 ); Key research and development program of Shanxi Province ( 201603D121017 ); Program for Science and Technology Development of Shanxi Province ( 20140321012-01 ); W. Y. Wong thanks the Hong Kong Polytechnic University (1-ZE1C) for financial support.
Publisher Copyright:
© 2019
PY - 2019/3
Y1 - 2019/3
N2 - Through of the technique route of pre-coordination and post-polymerization and final-blend by program controlling from vinyl-functionalized RGB complex monomers [Eu(TTA)3(UA)](TTA = 2-thenoyltrifluoroacetone, UAH= Undecenoic acid), [Tb(2-ABA)3(UA)](2-ABAH = 2-Aminobenzoic acid), [Be (BTZ) (MAA)](BTZ=Benzothiazole, MAA = Methylacrylic acid) with Methyl methacrylate(MMA) to synthesize the monochrome polymers poly(MMA-co-Eu(TTA)3(UA)) (abbr. PMEu), poly(MMA-co-Tb(2-ABA)3(UA)) (abbr. PMTb), poly(MMA-co- Be (BTZ) (MAA)) (abbr. PMBe), and finally obtain the white-light blend-polymer phosphors by program controlling. The monochrome polymers PMEu, PMTb, PMBe have 1.69, 11.53, 10.57 times of the luminescent intensity as RGB complex monomers. The serial blend polymer phosphors have the emission located in the white light region with the CIE coordinates close to the calculated ones running by the program. When the RGB ratio = 1:1.38:0.46, the experiment coordinates are situated at (0.32, 0.33), being close to the theoretical coordinates of (0.33, 0.33), proving that the program controlling can guide the tuning of the chromaticity of the emission color. The LED device was fabricated by the blend polymer phosphor with the RGB ratio of 1:1.38:0.46 matched with the chip of 365 nm wavelength, the color temperature is 6444 K, the color rendering index 84.2, and the luminance 12740 cd/m2 at 3.2 V. This research develops an approach of pre-coordination, post-polymerization and final-blend by program controlling that not only improves the luminescent intensity, but also suppresses the energy transfer, and more importantly achieves the precise adjustment to the white light.
AB - Through of the technique route of pre-coordination and post-polymerization and final-blend by program controlling from vinyl-functionalized RGB complex monomers [Eu(TTA)3(UA)](TTA = 2-thenoyltrifluoroacetone, UAH= Undecenoic acid), [Tb(2-ABA)3(UA)](2-ABAH = 2-Aminobenzoic acid), [Be (BTZ) (MAA)](BTZ=Benzothiazole, MAA = Methylacrylic acid) with Methyl methacrylate(MMA) to synthesize the monochrome polymers poly(MMA-co-Eu(TTA)3(UA)) (abbr. PMEu), poly(MMA-co-Tb(2-ABA)3(UA)) (abbr. PMTb), poly(MMA-co- Be (BTZ) (MAA)) (abbr. PMBe), and finally obtain the white-light blend-polymer phosphors by program controlling. The monochrome polymers PMEu, PMTb, PMBe have 1.69, 11.53, 10.57 times of the luminescent intensity as RGB complex monomers. The serial blend polymer phosphors have the emission located in the white light region with the CIE coordinates close to the calculated ones running by the program. When the RGB ratio = 1:1.38:0.46, the experiment coordinates are situated at (0.32, 0.33), being close to the theoretical coordinates of (0.33, 0.33), proving that the program controlling can guide the tuning of the chromaticity of the emission color. The LED device was fabricated by the blend polymer phosphor with the RGB ratio of 1:1.38:0.46 matched with the chip of 365 nm wavelength, the color temperature is 6444 K, the color rendering index 84.2, and the luminance 12740 cd/m2 at 3.2 V. This research develops an approach of pre-coordination, post-polymerization and final-blend by program controlling that not only improves the luminescent intensity, but also suppresses the energy transfer, and more importantly achieves the precise adjustment to the white light.
KW - Color scheme
KW - Energy transfer
KW - Luminescent properties
KW - Pre-coordination and post-polymerization and final-blend
KW - Program controlling
UR - http://www.scopus.com/inward/record.url?scp=85060872365&partnerID=8YFLogxK
U2 - 10.1016/j.optmat.2019.01.030
DO - 10.1016/j.optmat.2019.01.030
M3 - Journal article
AN - SCOPUS:85060872365
SN - 0925-3467
VL - 89
SP - 250
EP - 260
JO - Optical Materials
JF - Optical Materials
ER -