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Hui Chen
Chinese Academy of Sciences
12Publications
11H-index
915Citations
Publications 12
Newest
#1Hui Chen (CAS: Chinese Academy of Sciences)H-Index: 11
#2Shaobo Guo (CAS: Chinese Academy of Sciences)H-Index: 4
Last.Genshui Wang (CAS: Chinese Academy of Sciences)H-Index: 23
view all 6 authors...
CaxSr0.3-xBa0.7Nb2O6 [CSBN (x), x = 0.00, 0.10, 0.20, and 0.30] lead-free ceramics were fabricated by traditional solid-state reaction technique. The morphology, structure, dielectric, ferroelectric and pyroelectric properties of CSBN (x) ceramics were systematically studied. The thermal depoling behaviors were evaluated through measurements of temperature dependence of piezoelectric constant (d(33)). All CSBN (x) ceramics exhibited obvious diffuse phase transitions and maximum dielectric consta...
10 CitationsSource
#1Zebin Lin (CAS: Chinese Academy of Sciences)H-Index: 9
#2Hang Lin (CAS: Chinese Academy of Sciences)H-Index: 30
Last.Yuansheng Wang (CAS: Chinese Academy of Sciences)H-Index: 50
view all 7 authors...
Abstract Phosphor-in-glass (PiG) color converter, being regarded as a good encapsulant material for long-lifetime high-powered white light-emitting-diode (LED), has developed rapidly in the recent years. However, it still remains a challenge to achieve fine chromaticity tuning of PiG for high-quality indoor lighting. Herein, a transparent garnet-based PiG was successfully prepared by introducing the Y3Mg2AlSi2O12:Ce3+ orange phosphor and the Y3Al4.6Ga0.4O12:Ce3+ green phosphor into TeO2-based gl...
23 CitationsSource
#1Bo WangH-Index: 37
#2Hang LinH-Index: 30
Last.Yuansheng WangH-Index: 50
view all 7 authors...
Owing to its low cost and admirable luminescent characteristics for use in warm white-light-emitting diode (w-LED) applications, the non-rare-earth Mn4+-activated red phosphor has emerged as a potent competitor of commercial Eu2+-doped nitrides in recent years. In this work, the novel red-emitting phosphor BaMgAl10–2xO17:xMn4+,xMg2+ is successfully synthesized, which exhibits bright and narrow-band luminescence peaking at 660 nm with a full width at half-maximum of merely ∼30 nm upon blue light ...
131 CitationsSource
#1Hui Chen (CAS: Chinese Academy of Sciences)H-Index: 11
#2Hang Lin (CAS: Chinese Academy of Sciences)H-Index: 30
Last.Yuansheng Wang (CAS: Chinese Academy of Sciences)H-Index: 50
view all 9 authors...
Red-emitting Mn4+ activated oxide phosphors with a cheap price and excellent physical/chemical stability have become a hot research topic for their potential applications in white LEDs (w-LEDs). Herein, we report a novel double-perovskite Gd2ZnTiO6:Mn4+ (GZT:Mn4+) red phosphor. The material microstructures were characterized with the aid of XRD Rietveld refinement and HRTEM observations. The luminescence properties and dynamics of Mn4+ in GZT were studied in detail using low/room temperature ste...
98 CitationsSource
#1Hang Lin (CAS: Chinese Academy of Sciences)H-Index: 30
#2Bo Wang (CAS: Chinese Academy of Sciences)H-Index: 37
Last.Yuansheng Wang (CAS: Chinese Academy of Sciences)H-Index: 50
view all 10 authors...
Persistent luminescence (PersL) has long commanded the curiosity of researchers owing to the complicated and profound physics behind it. In this work, the PersL mechanism in a new kind of persistent garnet phosphors, Lu2CaMg2(Si1−xGex)3O12:Ce3+, is studied from the new perspective of a “solid-solution” scheme. Different from the conventional study in pursuit of long PersL, we focus on manipulation of afterglow to the millisecond range and tentatively demonstrate its potential to compensate the f...
34 CitationsSource
#1Bo WangH-Index: 37
#2Hang LinH-Index: 30
Last.Yuansheng WangH-Index: 50
view all 7 authors...
Currently, the development of efficient red-emitting persistent phosphor is still an ongoing challenge. Herein, a novel red-emitting LPL phosphor Ca3Ti2O7:Pr3+ is successfully prepared by a high-temperature solid-state method. XRD Rietveld refinement analyses demonstrate the high phase purity of the sample which crystallizes in an orthorhombic Ccm21 space group with lattice parameters of a = 5.7702(5) A, b = 19.4829(7) A, and c = 5.1214(2) A. Electronic structure of the host matrix is analyzed b...
52 CitationsSource
#1Zebin Lin (CAS: Chinese Academy of Sciences)H-Index: 9
#2Hang Lin (CAS: Chinese Academy of Sciences)H-Index: 30
Last.Yuansheng Wang (CAS: Chinese Academy of Sciences)H-Index: 50
view all 7 authors...
Abstract We realize a facile chromaticity tuning for the Y 3 Al 5 O 12 :Ce 3+ phosphor-in-glass (PiG) based w-LED, with the aid of a CaAlSiN 3 :Eu 2+ red phosphor layer in a remote-type stacking configuration. It was experimentally demonstrated that both the stacking order and the relative amount of red phosphor influence the electroluminescent performance of the constructed w-LED significantly, and the optimized warm w-LED exhibits admirable performance with a luminous efficacy of 93.9 lm/W, a ...
54 CitationsSource
#1Hang LinH-Index: 30
#2Ju XuH-Index: 17
Last.Yuansheng WangH-Index: 50
view all 7 authors...
The state-of-the-art alternating-current light-emitting diode (AC-LED) technique suffers from adverse lighting flicker during each AC cycle. Aiming to compensate the dimming time of AC-LED, herein, we report a novel Mg3Y2(Ge1–xSix)3O12:Ce3+ inverse-garnet persistent phosphor whose afterglow is efficiently activated by blue light with persistent luminescence in millisecond range. It is experimentally demonstrated that Si doping tailors the host bandgap, so that both the electron charging and detr...
61 CitationsSource
#1Hui Chen (CAS: Chinese Academy of Sciences)H-Index: 11
#2Hang Lin (CAS: Chinese Academy of Sciences)H-Index: 30
Last.Yuansheng Wang (CAS: Chinese Academy of Sciences)H-Index: 50
view all 7 authors...
The commercially dominant phosphor-converted illumination white light-emitting-diodes (w-LEDs) generally suffer from red deficiency and the poor thermal stability of the organic encapsulants, resulting in cool white light, luminous degradation and chromatic aberration for the embedded YAG:Ce3+ phosphors after long-term working. Aiming to solve these problems, herein, a chromaticity-tunable robust phosphor-in-glass (PiG) inorganic color converter was successfully fabricated by co-sintering YAG:Ce...
75 CitationsSource
#1Jiangcong Zhou (CAS: Chinese Academy of Sciences)H-Index: 11
#2Feng Huang (CAS: Chinese Academy of Sciences)H-Index: 8
Last.Yuansheng Wang (CAS: Chinese Academy of Sciences)H-Index: 50
view all 5 authors...
A novel Sr3La(VO4)3 phosphor is explored which exhibits the bright self-activated luminescence and the ability to sensitize emission of rare earth activators, under the excitation of near UV light. The self-activated emission of the Sr3La(VO4)3 host is peaked at 520 nm with a broad emission band ranging from 400 nm to 700 nm, ascribing to the charge transfer in (VO4)3− groups; while the Sr3La(VO4)3:Eu3+ phosphors show both the broad band luminescence of (VO4)3− groups and the sharp peak emission...
55 CitationsSource
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