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学者姓名：王丽
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Abstract ：
The rapid, portable, and in situmeasurement of the ascorbic acid(AA) solution remains a challenge, and there is no suitable way toachieve multiscale regulation of the measurement range and sensitivity.In this work, water-soluble CdTe, CdTe/CdSe, and CdTe/CdSe/ZnS quantumdots (QDs) were used as fluorescence probes (FPs), and the specificsensitivity of photoluminescence (PL) intensity and AA were used asa detection indicator. By changing the concentration of the FP andthe type of core-shell structure, multiscale regulation ofthe measurement range and sensitivity was realized. The same FP withdistinct sensitivity in different measurement ranges is ingeniouslyrealized by double-layer core-shell CdTe/CdSe/ZnS with typeII-I band gap transition, which greatly expanded the application fields.The maximum measurement range was 0-27 & mu;M and the minimumdetection limit was 0.014 & mu;M for three FP systems. The capillarysensor with a honeycomb QD film attached to the inner wall was preparedby drying at room temperature, high-temperature heating, and laserprocessing, which greatly increased the contact area between the QDsand AA and reduced the measurement time. Furthermore, the microfluidicsystem was used to precisely control the deposition area and positionof the film, the concentration of the FP was adjusted and the depositionstatus of the film was observed in real time, so as to achieve real-timein situ rapid detection of the four concentration orders of the AAsolution. This work is of great significance for the rapid, portable,multifield, and in situ real-time detection in the field of biomoleculedetection.
Keyword ：
ascorbic acid ascorbic acid fluorescenceprobes fluorescenceprobes real-time rapid detection real-time rapid detection capillary sensor capillary sensor colloidal quantum dots colloidal quantum dots
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| GB/T 7714 | Wang, Jin , Wang, Li , Su, Xueqiong et al. Core-Shell Quantum Dot-Based Honeycomb Films on Capillary Walls for Rapid In Situ Ascorbic Acid Detection [J]. | ACS APPLIED NANO MATERIALS , 2023 , 6 (13) : 12231-12239 . |
| MLA | Wang, Jin et al. "Core-Shell Quantum Dot-Based Honeycomb Films on Capillary Walls for Rapid In Situ Ascorbic Acid Detection" . | ACS APPLIED NANO MATERIALS 6 . 13 (2023) : 12231-12239 . |
| APA | Wang, Jin , Wang, Li , Su, Xueqiong , Yu, Huimin . Core-Shell Quantum Dot-Based Honeycomb Films on Capillary Walls for Rapid In Situ Ascorbic Acid Detection . | ACS APPLIED NANO MATERIALS , 2023 , 6 (13) , 12231-12239 . |
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Abstract ：
Real-time monitoring of environmental relative humidity (RH) plays a crucial role in ensuring both the quality of industrial production and the quality of life. In this work, polarization maintaining fiber (PMF) was used as carriers to creatively constructed multi-layer film surface functionalization on its cladding surface. The indium tin oxide (ITO) film and polyvinyl alcohol (PVA) doped graphite oxide (GO) composite polymer constitute multilayer humidity sensitive film, which has the effect of dual absorption of water and improves the humidity sensitivity. Microporous composite polymer films created by laser processing increase the area for water evaporation and absorption, which improve response speed, and reduce recovery time. The surface functionalized PMF sensor exhibits high sensitivity and rapid response to humidity, achieving bidirectional repeated measurement of 0.28 nm/% within 10 s in the measurement range of 30%-90%, rendering it a reliable means for realtime monitoring of humidity.
Keyword ：
Relative humidity Relative humidity Surface functionalization Surface functionalization Optical fiber sensing Optical fiber sensing Real-time monitoring Real-time monitoring PMF PMF
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| GB/T 7714 | Dai, Jianguang , Wang, Jin , Wang, Li . Multi-layer film surface functionalized PMF sensor for real-time humidity measurement [J]. | OPTICAL FIBER TECHNOLOGY , 2023 , 80 . |
| MLA | Dai, Jianguang et al. "Multi-layer film surface functionalized PMF sensor for real-time humidity measurement" . | OPTICAL FIBER TECHNOLOGY 80 (2023) . |
| APA | Dai, Jianguang , Wang, Jin , Wang, Li . Multi-layer film surface functionalized PMF sensor for real-time humidity measurement . | OPTICAL FIBER TECHNOLOGY , 2023 , 80 . |
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Abstract ：
Optical modulation is the process of modifying the structure and elemental composition of materials so that the main optical parameters, including amplitude, frequency, and phase, are changed. Currently, much research attention has been directed toward ultrafast dynamics, but the process of modulation is often complex. To simplify the optical modulation process and improve the optical properties of perovskites for semiconductor quantum dot (QD) lasers, the process and physical mechanism underlying graphene QD ultrafast modulation of the optical properties of perovskite CsPbBr3 QDs were investigated. The typical cubic structure and square shape of CsPbBr3 QDs were characterized by transmission electron microscopy and X-ray diffraction, respectively. A luminescent peak centered near 540 nm and Stokes shift of 21.34 nm of CsPbBr3 QDs without graphene QDs were measured by absorption and photoluminescence spectroscopy. A maximum modulation shift of 133 nm and a modulation depth of 900% were achieved in CsPbBr3 with graphene. The results indicated that graphene QDs had the best modulation effect on perovskites when the drop volume was 0.05 mL. The process of ultrafast optical modulation via graphene QDs occurring within 1 ps was confirmed by the transient absorption spectrum. The modulation mechanism of graphene to perovskites is presented for guidance. This paper can be used as a reference for the optical modulation of perovskite materials.
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| GB/T 7714 | Su, Xueqiong , Pan, Yong , Gao, Dongwen et al. Ultrasimple and Ultrafast Method of Optical Modulation by Perovskite Quantum Dot Attachment to a Graphene Surface [J]. | ACS OMEGA , 2022 , 7 (23) : 19606-19613 . |
| MLA | Su, Xueqiong et al. "Ultrasimple and Ultrafast Method of Optical Modulation by Perovskite Quantum Dot Attachment to a Graphene Surface" . | ACS OMEGA 7 . 23 (2022) : 19606-19613 . |
| APA | Su, Xueqiong , Pan, Yong , Gao, Dongwen , Wang, Jin , Chen, Ruixiang , Wang, Yimeng et al. Ultrasimple and Ultrafast Method of Optical Modulation by Perovskite Quantum Dot Attachment to a Graphene Surface . | ACS OMEGA , 2022 , 7 (23) , 19606-19613 . |
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Abstract ：
The enhancement of photoluminescence (PL) stability of colloidal quantum dots (CQDs) is of great significance in light-emitting devices. In this work, the PL stability of CdTe CQDs under time storage, strong light irradiation, acid and alkali corrosion and low temperature freezing is analyzed, and the PL quenching mechanism in a harsh environment is analyzed. Furthermore, the PL stability is extremely improved by core-shell coating, film deposition and polymer encapsulation. This solves the problem of rapid dropping of the PL intensity at the initial illumination stage and improves the corrosion resistance in an acidic environment and long-term storage stability of film devices. CQD polymer films have an interesting phenomenon of fluorescence enhancement under illumination due to the light-soaking effect. Biocompatible coating and encapsulation materials expand the application of CQD devices in the field of biological tissue imaging and sensing. Through the PL regulation of CQD solutions and the simple superposition of self-supporting films, a panchromatic light-emitting device with broadband adjustable chromaticity is realized. The solid-state stable whispering-gallery-mode (WGM) laser is realized by monodisperse SiO2 microspheres embedded in the film. This work is of great significance for the application of CQDs in flexible light-emitting devices.
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| GB/T 7714 | Wang, Jin , Wang, Li , Su, Xueqiong et al. CdTe quantum dot-based self-supporting films with enhanced stability for flexible light-emitting devices [J]. | SOFT MATTER , 2022 , 18 (38) : 7324-7332 . |
| MLA | Wang, Jin et al. "CdTe quantum dot-based self-supporting films with enhanced stability for flexible light-emitting devices" . | SOFT MATTER 18 . 38 (2022) : 7324-7332 . |
| APA | Wang, Jin , Wang, Li , Su, Xueqiong , Gao, Dongwen , Yu, Huimin . CdTe quantum dot-based self-supporting films with enhanced stability for flexible light-emitting devices . | SOFT MATTER , 2022 , 18 (38) , 7324-7332 . |
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Abstract ：
In this work, core CdTe, core-shell CdTe/CdSe and alloy CdTeSe QDs are synthesized by aqueous solvent. TEM visually shows the rod-shaped core-shell structure with a transverse to longitudinal ratio of 6.5 and the ellipsoidal alloy structure with different crystal planes competing for growth. The XRD and Raman spectra of the three QDs illustrate the characteristics of the internal lattice structure. With the increase of reaction time, CdTe emission maximum (EM) shows a red shift of 84 nm. Stokes shift changes little, and full width half maximum (FWHM) increases slightly. Compared with the CdTe, the red shift of CdTe/CdSe EM is slowly first and then faster, with a total shift of 125 nm. Stokes shift increases obviously. The initial FWHM is larger than CdTe and the widening speed is gradually accelerated. The initial EM of CdTeSe is red shifted compared with CdTe, and the total red shift of EM is 72 nm. Stokes shift increases obviously. The initial FWHM is significantly wider than CdTe. FWHM first decreases and then increases with reaction time. CdTe shows obvious band edge exciton absorbance of photoluminescence excitation (PLE) spectrum between 356 nm and 400 nm. CdTe/CdSe shows double band edge exciton absorption at 354-373 nm and 401-436 nm due to wave function separated of core-shell structure. The PLE spectrum of CdTeSe shows an obvious upward trend at 306-373 nm due to high energy level nonradiation. The average lifetime of CdTe/CdSe increases by 53 ns compared with CdTe due to the spatially separated electrons and holes. The defect state of CdTeSe increases the proportion of fast delay, which is 2 ns shorter than the average lifetime of CdTe. The transition mechanism of core-shell indirect band gap and alloy direct band gap is explained according to the valence bands of each element shown by XPS and the simulation of energy band density of states. The thickness shell and the doping elements can be adjusted to provide rich variation in the optical properties. This provides a more definite direction for the applications of cadmium chalcogenide in the fields of photoelectric devices and biology. (C) 2022 Elsevier B.V. All rights reserved.
Keyword ：
Band gap engineering Band gap engineering Rod-shaped core/shell Rod-shaped core/shell Ellipsoidal alloy Ellipsoidal alloy Cadmium QDs Cadmium QDs Optical properties Optical properties
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| GB/T 7714 | Wang, Jin , Wang, Li , Su, XueQiong et al. Bandgap engineering of CdTe/CdSe rod-shaped core/shell and CdTeSe ellipsoidal alloy quantum dots with tunable and intense emission [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2022 , 920 . |
| MLA | Wang, Jin et al. "Bandgap engineering of CdTe/CdSe rod-shaped core/shell and CdTeSe ellipsoidal alloy quantum dots with tunable and intense emission" . | JOURNAL OF ALLOYS AND COMPOUNDS 920 (2022) . |
| APA | Wang, Jin , Wang, Li , Su, XueQiong , Chen, RuiXiang . Bandgap engineering of CdTe/CdSe rod-shaped core/shell and CdTeSe ellipsoidal alloy quantum dots with tunable and intense emission . | JOURNAL OF ALLOYS AND COMPOUNDS , 2022 , 920 . |
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Abstract ：
In this paper, the graphene tilted Bragg fiber grating (TFBG) sensor is fabricated by pulsed laser deposition (PLD). TFBG's sensitivity to external environmental changes can be improved to a certain extent by coating graphene in TFBG area. The experimental results show that the strain sensitivity of TFBG coated with graphene is 0.48 nm/m epsilon, which is 1.6 times of the strain sensitivity of bare grating. The temperature sensitivity of TFBG coated with graphene is 0.1 nm/degrees Cas same as bare grating. Based on the dual-wavelength matrix method, the Sagnac loop is used to cascade the coated tilted grating with The Bragg grating (FBG), and the temperature and stress sensing characteristics are measured simultaneously.
Keyword ：
Graphene Graphene PLD PLD Tilted fiber Bragg grating Tilted fiber Bragg grating Strain sensitivity Strain sensitivity
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| GB/T 7714 | Xiao, Ranran , Wang, Li , Wang, Jin et al. A novel graphene tilt fiber grating sensor prepared by PLD and its photosensitive characteristics [J]. | OPTIK , 2022 , 259 . |
| MLA | Xiao, Ranran et al. "A novel graphene tilt fiber grating sensor prepared by PLD and its photosensitive characteristics" . | OPTIK 259 (2022) . |
| APA | Xiao, Ranran , Wang, Li , Wang, Jin , Yan, Huanhuan , Cheng, Hao . A novel graphene tilt fiber grating sensor prepared by PLD and its photosensitive characteristics . | OPTIK , 2022 , 259 . |
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Abstract ：
Multi parameter measurement based on optical fiber sensor has been a research hotspot in recent years. In this work, four kinds of optical fiber sensors, LPFG, FBG, PMF and SMS are used. The transmission characteristics and sensing characteristics of each sensor are analyzed in detail. Based on the modulation of resonance wavelength by environmental variables, the accurate and synchronous real-time detection of temperature, stress, refractive index and humidity is realized. We use all-optical coupling cascade and wavelength division multiplexing (WDM) technology to prepare a highly integrated sensing device. The problem of signal crosstalk of each sensor is solved, and the cost of signal transmission and reception is greatly reduced. It is of great significance for monitoring a variety of environmental variables under extreme conditions.
Keyword ：
Optical fiber sensing Optical fiber sensing Multi parameter Multi parameter Highly integrated Highly integrated Cascade Cascade
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| GB/T 7714 | Wang, Jin , Wang, Li , Su, XueQiong et al. Temperature, stress, refractive index and humidity multi parameter highly integrated optical fiber sensor [J]. | OPTICS AND LASER TECHNOLOGY , 2022 , 152 . |
| MLA | Wang, Jin et al. "Temperature, stress, refractive index and humidity multi parameter highly integrated optical fiber sensor" . | OPTICS AND LASER TECHNOLOGY 152 (2022) . |
| APA | Wang, Jin , Wang, Li , Su, XueQiong , Xiao, RanRan , Cheng, Hao . Temperature, stress, refractive index and humidity multi parameter highly integrated optical fiber sensor . | OPTICS AND LASER TECHNOLOGY , 2022 , 152 . |
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Abstract ：
In this work, the surface of long-period fiber grating (LPFG) and polarization maintaining fiber (PMF) is functionalized based on the interaction between the resonance wavelength and external environment. LPFG coated with a 150 nm ZnSe/Co film is fixed on a hollow bracket, prestressed, and annealed many times. A highly sensitive liquid level sensor with adjustable sensitivity, an adjustable measurement range, and a high liquid level early warning is prepared. The waveguide layer controlled by humidity is constructed by filling poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonate) (PEDOT/PSS) in a periodically etched PMF. The surface is coated with a poly(vinyl alcohol) (PVA) and carbon nanotube (CNT) composite polymer. After laser processing, a honeycomb porous film is obtained, and the humidity sensor with wavelength modulation is prepared. The pH-sensitive polymer is successively adsorbed on the surface of PMF coated with a 120 nm indium tin oxide (ITO) film by electrostatic self-assembly (ESA). Poly(allylamine hydrochloride) (PAH), poly(acrylic acid) (PAA), and poly(styrene sulfonate) (PSS) constitute a composite film with rapid deposition and high permeability that is covered with polyaniline/poly(methyl methacrylate) (PMMA) as the protective layer. After laser processing, a fluffy porous film structure is formed. The pH sensor is obtained and the preparation steps are greatly reduced. Finally, based on the wavelength division multiplexing (WDM) and multiwavelength matrix (MWM), the problem of crosstalk is solved. An integrated sensor is constructed to realize the simultaneous measurement of temperature, liquid level, humidity, and pH. It has been successfully applied to monitor the overall environment of a chemical waste liquid storage tank. The sensor has the advantages of remote monitoring, safety, efficiency, and labor-saving. © 2022 American Chemical Society.
Keyword ：
highly integrated highly integrated optical fiber sensors optical fiber sensors composite films composite films real-time monitoring real-time monitoring multiparameter multiparameter
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| GB/T 7714 | Wang, J. , Wang, L. , Su, X. et al. Simultaneous Real-Time Measurements of Temperature, Liquid Level, Humidity, and pH by ZnSe/Co Nanostructure-Coated Polymer Films [J]. | ACS Applied Nano Materials , 2022 , 5 (9) : 13612-13625 . |
| MLA | Wang, J. et al. "Simultaneous Real-Time Measurements of Temperature, Liquid Level, Humidity, and pH by ZnSe/Co Nanostructure-Coated Polymer Films" . | ACS Applied Nano Materials 5 . 9 (2022) : 13612-13625 . |
| APA | Wang, J. , Wang, L. , Su, X. , Xiao, R. , Gao, D. , Kang, C. et al. Simultaneous Real-Time Measurements of Temperature, Liquid Level, Humidity, and pH by ZnSe/Co Nanostructure-Coated Polymer Films . | ACS Applied Nano Materials , 2022 , 5 (9) , 13612-13625 . |
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Abstract ：
In this article the temperature sensing properties of pi-phase-shifted fiber Bragg grating (pi-PSFBG) were investigated. Surface coating is one of the commonly used modification methods for fiber gratings, which can improve its sensing performance and even enable it to sense more physical quantities. In this article, we aim to study the effect of coating on the temperature sensing performance of pi-PSFBG. Indium tin oxide (ITO) films are widely used in the optoelectronics industry due to their unique combination of electrical conduction and optical transparency. In this paper, the ITO film was coated on the surface of pi-PSFBG by pulsed laser deposition (PLD) method to improve its sensing performance. In the practical application of fiber optic sensors, multiple sensors are often used simultaneously, which leads to the mutual interference superposition between the spectra. In this case, the stable extraction of the sensing signal is a problem worth considering. The sensing stability of several interference optical paths and cascaded optical paths before and after pi-PSFBG coating is investigated and compared. After the surface is coated with a layer of 0.19 mu m thick ITO film, the temperature sensing sensitivity of pi-PSFBG is increased by about 15%. It was found that the coating of ITO film enhanced the stability of pi-PSFBG in various optical paths.
Keyword ：
?-phase-shifted fiber Bragg grating ?-phase-shifted fiber Bragg grating Temperature sensing Temperature sensing Interference Interference Indium tin oxide film Indium tin oxide film Pulsed laser deposition Pulsed laser deposition
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| GB/T 7714 | Cheng, Hao , Wang, Li , Xiao, Ranran et al. Temperature sensing of pi-PSFBG with ITO film coated by PLD method [J]. | OPTIK , 2022 , 262 . |
| MLA | Cheng, Hao et al. "Temperature sensing of pi-PSFBG with ITO film coated by PLD method" . | OPTIK 262 (2022) . |
| APA | Cheng, Hao , Wang, Li , Xiao, Ranran , Wang, Jin . Temperature sensing of pi-PSFBG with ITO film coated by PLD method . | OPTIK , 2022 , 262 . |
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Abstract ：
Increasing sensitivity, measuring points, and stability have always been the pursuit of sensors. ZnSe9:CO1 and Ag composite nano films were coated on polarization maintaining fiber (PMF). Then, the coated PMF was nested in capillary and hose which was encapsulated with polydimethylsiloxane (PDMS) and epoxy resin. The integrated capillary sensor and thermoplastic hose sensor were prepared. The gradient sensitization of various measurement parameters such as temperature, stress, and micro bending is realized. The temperature sensitivity is 1.49 nm/degrees C, the micro bending sensitivity is 1.72 nm/10(2) g, and the stress sensitivity is 6.27 nm/m epsilon. The sensors maintain good linearity and instantaneous response while having high sensitivity. By adjusting the length of PMF, the number of troughs is increased in the same band range, and different troughs have different sensitivities, which solves the inherent problem of cross sensitivity and realizes multiparameter measurement. Capillary sensors are used for remote safe real-time monitoring of mechanical overheating, and hose sensors are used for real-time monitoring of bridge load and human joint bending. This work is of great significance to the extension of the application range of optical fiber sensor.
Keyword ：
optical fiber sensors optical fiber sensors composite nano films composite nano films multi parameter multi parameter PMF PMF
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| GB/T 7714 | Wang, Jin , Wang, Li , Su, XueQiong et al. Polarization Maintaining Fiber Temperature and Stress Gradient Sensitization Sensor Based on Semiconductor-Metal-Polymer Three-Layer Film Coating [J]. | ACS APPLIED MATERIALS & INTERFACES , 2022 , 14 (17) : 20053-20061 . |
| MLA | Wang, Jin et al. "Polarization Maintaining Fiber Temperature and Stress Gradient Sensitization Sensor Based on Semiconductor-Metal-Polymer Three-Layer Film Coating" . | ACS APPLIED MATERIALS & INTERFACES 14 . 17 (2022) : 20053-20061 . |
| APA | Wang, Jin , Wang, Li , Su, XueQiong , Xiao, RanRan , Cheng, Hao . Polarization Maintaining Fiber Temperature and Stress Gradient Sensitization Sensor Based on Semiconductor-Metal-Polymer Three-Layer Film Coating . | ACS APPLIED MATERIALS & INTERFACES , 2022 , 14 (17) , 20053-20061 . |
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