000 04065nlm1a2200469 4500
001 662502
005 20231030041823.0
035 _a(RuTPU)RU\TPU\network\33657
035 _aRU\TPU\network\32642
090 _a662502
100 _a20200826a2020 k y0engy50 ba
101 0 _aeng
102 _aGB
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aA novel efficient single-phase dual-emission phosphor with high resemblance to the photosynthetic spectrum of chlorophyll A and B
_fFang Shuangqiang, Lang Tianchun, Khan Tao [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 53 tit.]
330 _aLight is a fuel for photosynthesis and plays an irreplaceable role in seed germination, stem elongation, leaf expansion, flowering induction, and accumulation of nutrients. However, the current phosphors combined with LEDs for photosynthesis have some unsolved problems, such as low efficiency, poor thermal stability, unvarying emission wavelength or non-matching spectrum, which restrict their applications. In this work, a series of novel efficient Lu3Al5O12:10%Ca2+,xBi3+,yMn4+ phosphors with blue-violet plus deep red dual-emission peaking at 419 and 669 nm have been first reported, which can meet the different light requirements of plants by controlling the concentration ratio of Bi3+ and Mn4+, and they possess at most 90.64% spectrum resemblance to the absorption spectrum of chlorophyll A and B. Furthermore, these phosphors exhibit high internal efficiency and at most reserve 95% of the initial intensity at 425 K. Finally, as a light source for monitoring the fluorescence spectra of evergreen plants, pc-LEDs were fabricated by UV chips and our synthesized phosphors. The results reveal that these phosphors can achieve as high as 83% photosynthetic efficiency for evergreen plants and improve it by 10% than a single emission phosphor, which shows good application prospects for improving plant photosynthesis.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tJournal of Materials Chemistry C
463 _tVol. 8, iss. 18
_v[P. 6245-6253]
_d2020
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aлюминофоры
701 0 _aFang Shuangqiang
701 0 _aLang Tianchun
701 0 _aKhan Tao
_cchemist
_cSenior Researcher of Tomsk Polytechnic University, Ph.D
_f1990-
_2stltpush
_3(RuTPU)RU\TPU\pers\46545
701 0 _aCai Mingsheng
701 0 _aCao Shixiu
701 0 _aPeng Lingling
701 0 _aBitao Liu
701 0 _aZhong Yang
_cspecialist in the field of lightning engineering
_cAssociate Professor of Tomsk Polytechnic University, Ph.D
_f1990-
_2stltpush
_3(RuTPU)RU\TPU\pers\39798
701 1 _aYakovlev
_bA. N.
_cspecialist in the field of lightning engineering
_cVice-rector-Director of Tomsk Polytechnic University, Candidate of physical and mathematical sciences
_f1971-
_gAleksey Nikolaevich
_2stltpush
_3(RuTPU)RU\TPU\pers\31580
701 1 _aKorepanov
_bV. I.
_cspecialist in the field of lightning engineering
_cProfessor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences
_f1947-
_gVladimir Ivanovich
_2stltpush
_3(RuTPU)RU\TPU\pers\33774
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа новых производственных технологий
_bОтделение материаловедения
_h7871
_2stltpush
_3(RuTPU)RU\TPU\col\23508
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа новых производственных технологий
_c(2017- )
_h7870
_2stltpush
_3(RuTPU)RU\TPU\col\23501
801 2 _aRU
_b63413507
_c20200826
_gRCR
856 4 _uhttps://doi.org/10.1039/D0TC00811G
942 _cCF