A5100324659- Perovskite Materials and Applications
- GaN-based semiconductor devices and materials
- Advanced Memory and Neural Computing
- Conducting polymers and applications
- Optical Wireless Communication Technologies
- Quantum Dots Synthesis And Properties
- Photonic and Optical Devices
- Advancements in Battery Materials
- Photorefractive and Nonlinear Optics
- Semiconductor materials and devices
- Ferroelectric and Negative Capacitance Devices
- Chalcogenide Semiconductor Thin Films
- ZnO doping and properties
- Ferroelectric and Piezoelectric Materials
- Underwater Vehicles and Communication Systems
- Semiconductor Lasers and Optical Devices
- Advanced Battery Materials and Technologies
- Acoustic Wave Resonator Technologies
- Advanced Photocatalysis Techniques
- Ga2O3 and related materials
- Advanced Fiber Laser Technologies
- Photonic Crystals and Applications
- Biofuel production and bioconversion
- Nonlinear Photonic Systems
- Nonlinear Waves and Solitons
Nanjing University of Posts and Telecommunications
2020-2025
Beijing University of Technology
2025
Chinese Academy of Medical Sciences & Peking Union Medical College
2021-2025
Donghua University
2014-2025
Peking University
2002-2024
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
2023-2024
Jilin University
2010-2024
Research Institute of Petroleum Exploration and Development
2023-2024
Hebei Normal University
2024
Jilin Normal University
2015-2024
This work proposes a high-bandwidth white-light system consisting of blue gallium nitride (GaN) micro-LED (μLED) exciting yellow-emitting CsPbBr1.8I1.2 perovskite quantum dots (YQDs) for high-speed real-time visible light communication (VLC). The packaged 80 μm × blue-emitting μLED has modulation bandwidth ∼160 MHz and peak emission wavelength ∼445 nm. achievable the is up to 85 in absence filters equalization technology. Meanwhile, YQDs as color converter high 73 with GaN pump source. A...
To enable high-speed long-distance underwater optical wireless communication (UOWC) supplementing traditional communication, a low-power 520 nm green laser diode (LD) based UOWC system was proposed and experimentally demonstrated to implement maximal capacity of up 2.70 Gbps data rate over 34.5 m transmission distance by using non-return-to-zero on-off keying (NRZ-OOK) modulation scheme. Moreover, maximum rates 4.60 Gbps, 4.20 3.93 3.88 3.48 at distances 2.3 m, 6.9 11.5 16.1 20.7 were...
High-speed underwater optical wireless communication (UOWC) was achieved using an 80 μm blue-emitting GaN-based micro-LED. The micro-LED has a peak emission wavelength of ~440 nm and power attenuation 1 dB/m in tap water. -3 dB electrical-to-optical modulation bandwidth the packaged increases with increasing current saturates at ~160 MHz. At distance 0.6 m, 800 Mb/s data rate bit error (BER) 1.3 × 10-3, below forward correction (FEC) criteria. And we obtained 100 speed received light output...
In this investigation, we experimentally demonstrated a high-speed Gbps long-distance real-time visible light communication system based on non-return-to-zero on-off keying modulation by using high-bandwidth Gallium nitride-based micro-LED with bandwidth of ∼230 MHz and size 40 <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">μ</i> m <inline-formula xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$ \times...
Abstract It is demonstrated that treatment of blue‐emissive carbon dots (CDs) with aqueous hydrogen peroxide (H 2 O ) results in the green emissive solid state CD phosphor photoluminescence quantum yield 25% and short luminescence lifetime 6 ns. The bathochromic‐shifted, enhanced emission H ‐treated CDs powder ascribed to surface changes occurring aggregated material. Using phosphor, down‐conversion white‐light‐emitting devices cool, pure, warm white light are fabricated. Moreover, using as...
The silicon anode holds great potential for next-generation lithium-ion batteries in view of its high gravimetric capacity and natural abundance. main challenges associated with are the structural degradation instability caused by huge volume change upon cycling. We report herein polybenzimidazole (PBI) derived pyrrolic N-enriched carbon as an ideal encapsulation onto microsized spheres, which is achieved aerosol-assisted assembly combined a simple physisorption process. new polymer endows...
This work reports the use of chip-based GaN-based micro-LED (μLED) arrays for multifunctional applications as microdisplay, data transmitters, photodetectors, and solar cells. The functions display transmitter have been reported, particularly, we experimentally demonstrated that μLED could be used self-powered, high-performance, wavelength-selective photodetectors (PDs), enabling high-speed multiple-input multiple-output (MIMO) visible light communications (VLC) under on–off keying (OOK)...
Abstract In this paper, the underwater applications of micro‐LED (light‐emitting diode) in light emission, optical detection, and solar cell are demonstrated. Based on a high‐bandwidth low‐power array, duplex wireless communication (UWOC) charging realized. Using non‐return‐to‐zero on‐off‐keying modulation scheme, maximum bandwidth data rate transmitter 2.3 m UWOC system 251.3 MHz 660 Mbps, respectively. addition, micro‐LED‐based photodetector can achieve rates 52.5 60 Mbps at 0 −5 V same...
Abstract Skin‐like functional membranes with liquid resistance and moisture permeability are in growing demand various applications. However, the have been facing a long‐term dilemma balancing waterproofness breathability, as well resisting internal sweat transport, resulting poor thermal–wet comfort. Herein, novel electromeshing technique, based on manipulating ejection phase separation of charged liquids, is developed to create triboelectric nanostructured nano‐mesh consisting hydrophobic...
Abstract Extreme cold events are becoming more frequent and intense around the world, imposing a huge burden on human health global economy. However, developing fibrous materials featuring ultralight weight, high shape retention, thermal insulation to withstand extreme conditions remains great challenge. Herein, inspired by natural porous loofah, an superelastic micro/nanofibrous aerogel (MNFA) that integrates hierarchical pores stable physical entanglements is directly synthesized via...
While awareness among managers regarding the benefits of digital transformation in supply chain management has grown, many Chinese SMEs have not fully embraced this shift due to ineffective ICT investments, a lack effective government support, and presence related cognitive challenges. Leveraging sample 302 China, study employs SEM techniques validate direct effect ICTs on integration capability, relationship between capability firm financial performance. Furthermore, LMS technique is...
Abstract Graphene photodetectors face challenges like weak absorption and narrow spectral range. To overcome these weakness, we proposed a novel photodetector based on Gold (Au)/Graphene/Chalcogenide (Sb 2 S 3 ) hetero-junction, leveraging surface plasmonic phase-transition effects. Simulations show that optimizing Au Sb nanoantenna thicknesses diameters can achieve an efficiency of 0.9 for both amorphous crystalline states, with adjustable wavelength range 200 nm. The device demonstrates...
White light generated by mixing the red, green, and blue laser diodes (RGB LDs) for simultaneous high-speed underwater wireless optical communication (UWOC) high-efficiency solid-state lighting (SSL) was proposed demonstrated experimentally first time. The allowable maximum real-time data transmission rates of 3.2 Gbps, 3.4 3.1 Gbps RGB LDs with corresponding BERs 3.6 × 10-3, 3.5 10-3 3.7 were obtained at a 2.3 m distance using an on-off keying (OOK) modulation scheme, respectively. And UWOC...
Abstract Organolead halide hybrid perovskite solar cells (PSCs) have become a shining star in the renewable devices field due to sharp growth of power conversion efficiency; however, interfacial recombination and carrier‐extraction losses at heterointerfaces between active layer carrier transport layers remain two main obstacles further improve efficiency. Here, novel field‐effect passivation has been successfully induced effectively suppress charge transfer by incorporating polarization via...
In this paper, a system with controllable parameters for describing the evolution of polarization modes in nonlinear fibers is studied. Using Horita's method, coupled Schrödinger equations are transformed into bilinear equations, and one- two- bright soliton solutions (3) obtained. Then, influencing factors on velocity intensity process transmission analyzed. The fusion, splitting deformation solitons caused by their interactions discussed. Finally, method adjusting inconsistencies sine-wave...
Inorganic CsPbI3 perovskite has demonstrated promising potentials for photovoltaic applications, whereas the black polymorph (α phase) of was easily prone to converting into yellow phase (δ under ambient moist environment, which restrained its practical application and further studies severely. In this study, p-phenylenediammonium iodide (PPDI) employed posttreat films controlling conversion, strengthening moisture resistance, improving device performance. The multiple roles PPDI were as...
A high-speed c-plane InGaN/GaN blue micro-scale light-emitting diodes (Micro-LEDs) with a pixel diameter of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$60~\mu \text{m}$ </tex-math></inline-formula> , and high −3 dB modulation bandwidth 1.53 GHz at the current density 5996 A/cm <sup xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> were demonstrated. The ultra-thin quantum well (QW) structure InGaN...