Advanced Optical Materials
·
2023
·Vol. 11
·期 24
·2301065
·
IF 9
Shanshan Song,Tingting Hao,Bo Wang,Dongqi Liu,Zichen Ren,Yike zhang,Wenchao Liu,Leipeng Zhang,Yao Li
Polyaniline (PANI) can achieve reversible optical modulation in visible and infrared (IR) bands under the action of voltage. However, PANI-based electrochromic devices cannot cope with the dual detection of visible and IR light to realize the transmission of information due to the linkage restriction between the spectral modulation in the visible and IR region. Here, IR low-absorptive inorganic pigments as colorants and IR high-transparent polymer as a binder are utilized to prepare colored films with high transparency. A camouflage layer against visible light detection is constructed on the surface of IR electrochromic devices, and the information transmission is realized in the IR band by controlling the thermal radiation characteristics. Furthermore, thermochromic microcapsules (TMs) that change color under external thermal stimuli are introduced to fabricate a thermochromic and IR transparent functional layer, which is attached to the surface of IR electrochromic devices and endows the devices with separate spectral modulation ability in the visible and IR region. Multicolored displays are fabricated by arraying various devices. Moreover, visual patterns are prepared on the surface of IR electrochromic devices by dispensing technology. This configuration endows the device with a promising potential for anti-counterfeiting, optical security, and related applications.
研究领域:
材料科学
·
光学工程
·
信息传输技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2022
·Vol. 33
·期 30
·23515-23523
·
IF 2.779
Yao Zhongxiang,Bi Gang,Yin Juxin,Chen Zeyu,Cai Chunfeng
Due to the narrow band gap and high quantum confinement effects, Group IV–VI PbSe semiconductor materials have wide applications in infrared detectors. The morphology and size of nanomaterials affect the physical and chemical properties of PbSe semiconductor materials. Here, we developed a synthesized and grew PbSe-branched, I-shaped, and L-shaped nanorods method with uniform distribution by modulating the reaction environment. The results suggested that the arm length of the nanorods increased along the < 100 > axes with reaction time. The directional attachment of nanoparticles along the {100} plane was enhanced by appropriately increasing the reaction temperature. NH 4 Cl could promote the orientational attachment of PbSe nanocrystals along the {100} planes to form I-shaped and L-shaped nanorods. The PbSe-branched nanorod arms were uniformly distributed between 4.2 and 21 nm corresponding to an absorption spectrum between 1086 and 1574 nm and photoluminescence between 1301 and 1621 nm. This indicates that the optical properties are tunable in the near-infrared. Therefore, this research expands the potential applications of PbSe nanostructures in tunable infrared lasers, bioimaging, and solar cells, among others.
研究领域:
材料科学
·
纳米技术
·
光学
✓ 已验证
DOI
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2017
·
IF 3.154
Yaoyao Liu,Jing-Min Liu,Dongdong Zhang,Kun Ge,Peihua Wang,Huilin Liu,Guozhen Fang,Shuo Wang
Probiotics has attracted great attention in food nutrition and safety research field, but thus far there are limited analytical techniques for visualized and real-time monitoring of the probiotics when they are ingested in vivo. Herein, the optical bioimaging technique has been introduced for investigation of foodborne probiotics biodistribution in vivo, employing the near-infrared (NIR) emitting persistent luminescence nanophosphors (PLNPs) of Cr3+-doped zinc gallogermanate (ZGGO) as the contrast nanoprobes. The ultrabrightness, super long afterglow, polydispersed size, low toxicity, and excellent photostability and biocompatibility of PLNPs were demonstrated to be qualified as a tracer for labeling probiotics via antibody (anti-Gram positive bacteria LTA antibody) recognition as well as contrast agent for long-term bioimaging the probiotics. In vivo optical bioimaging assay showed that the LTA antibody functionalized ZGGO nanoprobes that could be efficiently tagged to the probiobics were successfully applied for real-time monitoring and nondamaged probing of the biodistribution of probiotics inside the living body after oral administration. This work presents a proof-of-concept that exploited the bioimaging methodology for real-time and nondamaged researching the foodborne probiotics behaviors in vivo, which would open up a novel way of food safety detection and nutrition investigation.
研究领域:
食品科学
·
生物医学工程
·
营养学
✓ 已验证
DOI
PubMed
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2020
·
IF 3.085
Haining Ji,Dongqing Liu,Haifeng Cheng
Vanadium dioxide (VO 2 ) is a remarkable thermochromic material for application in adaptive infrared camouflage due to the reversible phase transition that is coupled with an abrupt change in infrared optical properties . However, the relatively high phase transition temperature and the unclear infrared optical modulation characteristics in the mid-infrared and far-infrared regions largely restrict its practical applications. Here, W-doped VO 2 nanoparticles were successfully prepared to reduce the transition temperature. When the effective doping amount of W was 1.70%, the transition temperature decreased to 43.2 °C. Importantly, the infrared properties of W-doped VO 2 nanoparticles were studied in both MWIR (3–5 μm) and LWIR (8–14 μm) thermal atmospheric windows, for the first time, which exhibited significant infrared optical changes, with emissivity variation of Δε = 0.17 and Δε = 0.28, respectively. These favorable results further promote the development of the adaptive camouflage.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
DALTON TRANSACTIONS
·
2017
·Vol. 46
·期 9
·2778-2784
·
IF 4.029
Guang-mao Li,Qiong Liu,Kui Wu,Zhi-hua Yang,Shi-lie Pan
In view of their inherent defects for commercial infrared nonlinear optical (IR NLO) materials, exploration for new IR NLO materials with excellent performance is an imperative and meaningful work. Herein, we report the successful design and synthesis of two metal-mixed chalcogenides containing divalent cations with d10 electronic configuration: Na2CdGe2S6 and Na2CdGe2Se6. Both of them crystallize in the polar Cc space group and exhibit three-dimensional tunnel structures constructed by the CdQ4 tetrahedra and ∞[GeQ3]n chains with Na+ located in the tunnels. Furthermore, an interesting space group transformation between the monoclinic (Cc) and tetragonal (I4/mcm) systems from Na2CdGe2Se6 to Na2ZnGe2Se6 was discovered, which may arise from the different connection types of their building blocks (more flexible corner-sharing type in Cc while tightly edge-sharing type in I4/mcm). Remarkably, they exhibit type-I phase-matching abilities and large second harmonic generation (SHG) responses (0.8 and 2 times that of benchmark AgGaS2 at 2.09 μm fundamental light). Notably, Na2CdGe2S6 satisfies the essential requirements (coexistence of large NLO response and high laser damage threshold) as one excellent IR NLO material. The structure–property relationship has also been investigated through theoretical calculations and the results indicate that the origin of their NLO effects can be attributed to CdQ4 and GeQ4 units.
研究领域:
材料科学
·
凝聚态物理
·
无机化学
·
光学工程
·
功能材料
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2015
·
IF 6.723
Wei Feng,Xiaojun Zhou,Wei Nie,Liang Chen,Kexin Qiu,Yanzhong Zhang,Chuanglong He
Construction of multifunctional nanocomposites as theranostic platforms has received considerable biomedical attention. In this study, a triple-functional theranostic agent based on the cointegration of gold nanorods (Au NRs) and superparamagnetic iron oxide (Fe3O4) into polypyrrole was developed. Such a theranostic agent (referred to as Au/PPY@Fe3O4) not only exhibits strong magnetic property and high near-infrared (NIR) optical absorbance but also produces high contrast for magnetic resonance (MR) and X-ray computed tomography (CT) imaging. Importantly, under the irradiation of the NIR 808 nm laser at the power density of 2 W/cm2 for 10 min, the temperature of the solution containing Au/PPY@Fe3O4 (1.4 mg/mL) increased by about 35 °C. Cell viability assay showed that these nanocomposites had low cytotoxicity. Furthermore, an in vitro photothermal treatment test demonstrates that the cancer cells can be efficiently killed by the photothermal effects of the Au/PPY@Fe3O4 nanocomposites. In summary, this study demonstrates that the highly versatile multifunctional Au/PPY@Fe3O4 nanocomposites have great potential in simultaneous multimodal imaging-guided cancer theranostic applications.
研究领域:
生物医学工程
·
纳米医学
·
癌症治疗
·
材料科学
·
医学影像
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2016
·
IF 7.145
Pengpeng Lei,Peng Zhang,Shuang Yao,Shuyan Song,Lile Dong,Xia Xu,Xiuling Liu,Kaimin Du,Jing Feng,Hongjie Zhang
Bioimaging probes have been extensive studied for many years, while it is still a challenge to further improve the image quality for precise diagnosis in clinical medicine. Here, monodisperse NaGdF4:Yb3+,Tm3+,x% Bi3+ (abbreviated as GYT-x% Bi3+, x = 0, 5, 10, 15, 20, 25, 30) upconversion nanoparticles (UCNPs) have been prepared through the solvothermal method. The near-infrared upconversion emission intensity of GYT-25% Bi3+ has been enhanced remarkably than that of NaGdF4:Yb3+,Tm3+ (GYT) with a factor of ∼60. Especially, the near-infrared upconversion emission band centered at 802 nm is 150 times stronger than the blue emission band of GYT-25% Bi3+ UCNPs. Such high ratio of NIR/blue UCL intensity could reduce the damage to tissues in the bioimaging process. The possibility of using GYT-25% Bi3+ UCNPs with strong near-infrared upconversion emission for optical imaging in vitro and in vivo was performed. Encouragingly, the UCL imaging penetration depth can be achieved as deep as 20 mm. Importantly, GYT-25% Bi3+ UCNPs exhibit a much higher X-ray computed tomography (CT) contrast efficiency than GYT and iodine-based contrast agent under the same clinical conditions, due to the high X-ray attenuation coefficient of bismuth. Hence, simultaneous remarkable enhancement of NIR emission and X-ray CT signal in upconversion nanoparticles could be achieved by optimizing the doping concentration of Bi3+ ions. Additionally, Gd3+ ions in the UCNPs endow GYT-25% Bi3+ UCNPs with T1-weighted magnetic resonance (MR) imaging capability.
研究领域:
材料科学
·
纳米技术
·
生物医学工程
·
医学成像
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of the Australian Ceramic Society
·
2025
·
IF 2.1
Qian Kaichen,Fan Jintai,Shen Zongyun,Li Kai,Zhou Weiwen,Feng Minghui,Jiang Benxue,Zhang Long
The influence of Gd 2 O 3 phase on microstructure, optical, mechanical and thermal properties in Gd 2 O 3 -MgO nanocomposite ceramics was investigated. A self-propagating high-temperature synthesis (SHS) method was adopted to synthesize Gd 2 O 3 -MgO nanopowders. The pressureless sintering and hot isostatic pressing (HIP) technique were applied to obtain IR-transparent composite ceramics. The Gd 2 O 3 can be stabilized as the cubic structure with 10 at% Y-doping in Gd 2 O 3 -MgO nanocomposite ceramics (named GYM). Optical and mechanical properties of the GYM were compared with the Gd 2 O 3 -MgO without Y-doping samples (named GM) in which Gd 2 O 3 was monoclinic. The flexural strength, emittance of Gd 2 O 3 -MgO nanocomposite ceramics at high temperature were measured for the first time as far as we know. The comparison demonstrated that the GM exhibiting a more promising potential application performance for MWIR windows, with an in-line transmittance of 79.2–83.3% at 3–5 μm, Vickers hardness of 9.6 GPa, flexural strength of 508 MPa, emissivity of 0.02 at 4 μm (800 ℃) and the Hasselman mild-thermal-shock figure of merit R’ =2.0.
研究领域:
材料科学
·
陶瓷
·
红外光学
·
纳米复合材料
·
热学与力学性能
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2024
·Vol. 45
·期 5
·117112
·
IF 5.8
Yaqian Du,Jianbo Li,Jun Wang
Compared with perovskite SrTiO 3 , SrO(SrTiO 3 ) 2 exhibits lower thermal conductivity , while maintaining a high Seebeck coefficient , making it a promising material for photothermoelectric conversion. However, the relationship between its infrared and thermoelectric properties remains unexplored. This study examines the effect of Gd doping on these properties of SrO(SrTiO 3 ) 2 . Increased Gd doping induces a gradual transformation of SrO(SrTiO 3 ) 2 -based into a SrTiO 3 -based material, resulting in a composite comprising three phases and a notable reduction in thermal conductivity . At 973 K, the thermal conductivity decreases to a minimum of 1.4 W m −1 K −1 , which is 23 % lower than undoped SrO(SrTiO 3 ) 2 and 51 % lower than SrTiO 3 . Like SrTiO 3 , SrO(SrTiO 3 ) 2 absorbs infrared radiation in the 8–14 μm range. Although the highest ZT value reaches only 0.06 at 973 K, it shows a positive correlation with infrared emissivity. These findings are valuable for advancing the application of thermoelectric effects and the development of high-performance infrared materials.
研究领域:
材料科学
·
凝聚态物理
·
功能材料
·
能源材料
·
红外光学
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Yujun Wang,Peng Zhao,Xianghao Kong,Tinghui Zhang,Ning Ye,Zhanggui Hu,Conggang Li
Zero-order waveplates play pivotal roles in polarization manipulation and laser technology, yet the fabrication of zero-order waveplate crystals that simultaneously exhibit small birefringence, a large bandgap, and a wide infrared (IR) transmission range remains a challenge. In this work, a novel germanate optical crystal, Sr2CdGe3O9 (SCGO), featuring isolated rigid [Ge3O9] clusters, was identified through spontaneous crystallization. SCGO demonstrates remarkable thermal stability, with an incongruent melting point of 1054 °C. Importantly, SCGO displays a favorable low birefringence of 0.006@1064 nm, superior to that of the commercially available waveplate crystal α-SiO2 (0.0092@532 nm). Additionally, this crystal exhibits an enlarged bandgap of 4.7 eV, a notably short UV cutoff edge at 225 nm, outperforming most germanates containing transition metals, along with an extended IR transmission window up to 6.0 μm. These exciting optical properties highlight the potential of SCGO as a zero-order waveplate crystal spanning from the UV to mid-IR wavelength range. The presence of isolated [Ge3O9] groups in the SCGO structure introduces a weak structural anisotropy, opening up new avenues for exploring zero-order waveplate materials in wide wavelength ranges.
研究领域:
光学材料
·
晶体工程
·
光子学
·
红外光学
·
固态化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
IEEE JOURNAL OF QUANTUM ELECTRONICS
·
2024
·Vol. 60
·期 2
·1-6
·
IF 2.2
Yang Xiao,Jian Cui,Xusheng Xiao,Yantao Xu,Haitao Guo
A novel
$1.7 \mu \text{m}$
and
$2.4 \mu \text{m}$
dual-wavelength pumping scheme for a
$4.3 \mu \text{m}$
dysprosium (Dy3+)-doped chalcogenide fiber laser was theoretically demonstrated. It was attributed to the
$2.4 \mu \text{m}$
excited stated absorption (ESA,
$^{6}\text{H}_{\mathrm {13/2}} \to ^{6}\text{H}_{\mathrm {9/2}},^{6}\text{F}_{\mathrm {11/2}}$
transition). Theoretically, when the two pumps were 5 W and 2 W, respectively, a laser power of 1.5 W with an remarkable efficiency of 30.2% was obtained from the home-made Dy3+:Ga0.8As34.2Sb5S60 glass fiber with a loss coefficient of 3 dB/m and a Dy3+ concentration of
$3.67\times 10^{25}$
ions/m3. Results indicated that the dual-wavelength pumping scheme based on the gain fiber provides a potential way to
$4.3 \mu \text{m}$
dysprosium-doped chalcogenide fiber lasers.
研究领域:
光学工程
·
激光技术
·
材料科学
·
量子电子学
·
红外光学
✓ 已验证
DOI
高影响因子
DALTON TRANSACTIONS
·
2022
·Vol. 51
·期 12
·4728-4733
·
IF 4.569
Chunlan Tang,Wenhao Xing,Naizheng Wang,Jian Tang,Zheshuai Lin,Jieyun Wu,Wenlong Yin,Bin Kang
Inorganic metal chalcohalides are significant semiconductive materials for photovoltaics, photodetetion and infrared optics. Thus it is considerably rewarding to develop a new synthetic strategy to provide more degrees of freedom for atomic coordination to tune the optical and electronic properties of metal chalcohalides. In this work, the mixed-anion strategy is performed to synthesize two new metal chalcohalides Cs2InPS4X2 (X = Cl, Br) with mixed-anion structure by the reaction of InPS4 and CsX. Single-crystal X-ray diffraction analysis shows that they are isostructural and crystallize in the centrosymmetric space group P21/n, consisting of zero-dimensional structure [In2P2S8X4]4− (X = Cl, Br) built from tetrahedral [PS4]3− and octahedral [InS4X2]7− (X = Cl, Br) through edge-sharing, with Cs cations filling in intervening voids. The UV-vis-NIR diffuse reflectance spectroscopy measurement reveals that Cs2InPS4Cl2 and Cs2InPS4Br2 exhibit large optical bandgaps of 3.21 eV and 3.12 eV, respectively. The electronic structure calculations show that the bandgap mainly originates from the [InS4X2]7− (X = Cl, Br) mixed-anion groups. First-principles calculations indicate that the birefringence of Cs2InPS4Cl2 and Cs2InPS4Br2 is ∼0.08 and ∼0.05 at 2090 nm, respectively. Furthermore, thermal analysis reveals that the Cs2InPS4X2 (X = Cl, Br) are thermostable up to 400 °C. This discovery enriches the structural diversity of inorganic chalcohalides and provides an insight for the exploration of new semiconductive materials.
研究领域:
无机化学
·
材料科学
·
半导体物理
·
晶体工程
·
红外光学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）