A5041535892- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Advanced Photocatalysis Techniques
- Perovskite Materials and Applications
- Physical Unclonable Functions (PUFs) and Hardware Security
- Advancements in Semiconductor Devices and Circuit Design
- Low-power high-performance VLSI design
- MXene and MAX Phase Materials
- Electromagnetic Compatibility and Noise Suppression
- Gas Sensing Nanomaterials and Sensors
- Copper-based nanomaterials and applications
- Nanowire Synthesis and Applications
- 2D Materials and Applications
- Conducting polymers and applications
- Photonic and Optical Devices
- Organic Electronics and Photovoltaics
- Integrated Circuits and Semiconductor Failure Analysis
- VLSI and FPGA Design Techniques
- Semiconductor Lasers and Optical Devices
- Cryptographic Implementations and Security
- Nanocluster Synthesis and Applications
- Thin-Film Transistor Technologies
- Advanced Memory and Neural Computing
- Photonic Crystals and Applications
- 3D IC and TSV technologies
Tianjin University of Sport
2025
ZTE (China)
2021-2024
Shaanxi University of Science and Technology
2022-2023
Beijing Institute of Technology
2021-2022
Institute of Photonic Sciences
2017-2021
Chinese Academy of Sciences
2009-2021
Institute of High Energy Physics
2021
Institute of Semiconductors
2009-2020
University of Chinese Academy of Sciences
2020
State Key Laboratory on Integrated Optoelectronics
2017-2020
This paper presents an asynchronous SAR ADC for flexible, low energy radios. To achieve excellent power efficiency a relatively moderate resolution, various techniques are introduced to reduce the consumption: custom-designed 0.5 fF unit capacitors minimize analog consumption while dynamic logic minimizes digital consumption. The variability of is estimated by specialized CAD tool and verified chip measurements. An implemented 8-bit prototype in 90 nm CMOS technology occupies 228 μm × 240...
The charge carrier lifetime in organic–inorganic perovskites is one of the most important parameters for modeling and design solar cells other types devices. In this work, we use CH3NH3PbI3 single crystal as a model system to study optical absorption, generation, recombination lifetimes. We show that commonly applied photoluminescence measurements may dramatically underestimate intrinsic CH3NH3PbI3, which could be due severe at surface and/or fast electron–hole close surface. By using...
Iron pyrite (FeS(2)) is a naturally abundant and nontoxic photovoltaic material that can potentially make devices as efficient silicon-based ones; however existing iron contain thermodynamically unstable FeS(2) film surfaces lead to low open circuit voltages. We report the rational synthesis of phase pure, highly crystalline cubic nanocrystals (NCs) using trioctylphosphine oxide (TOPO) assisted hot-injection method. The synthesized NC films have excellent air stability over one year. In...
Developing low-cost photovoltaic absorbers that can harvest the short-wave infrared (SWIR) part of solar spectrum, which remains unharnessed by current Si-based and perovskite technologies, is a prerequisite for making high-efficiency, tandem cells. Here, PbS colloidal quantum dot (CQD) cells employing hybrid inorganic-organic ligand exchange process results in an external efficiency 80% at 1.35 µm are reported, leading to short-circuit density 34 mA cm-2 power conversion (PCE) up 7.9%,...
The power conversion efficiency of colloidal PbS‐quantum‐dot (QD)‐based solar cells is significantly hampered by lower‐than‐expected open circuit voltage ( V OC ). deficit considerably higher in QD‐based compared to other types existing due in‐gap trap‐induced bulk recombination photogenerated carriers. Here, this study reports a ligand exchange procedure based on mixture zinc iodide and 3‐mercaptopropyonic acid reduce the without compromising high current density. This layer‐by‐layer solid...
Hardware security concerns such as intellectual property (IP) piracy and hardware Trojans have triggered research into circuit protection malicious logic detection from various design perspectives. In this article, emerging technologies are investigated by leveraging their unique properties for applications in the domain. Security, first time, will be treated one metric nano-architecture. Five example structures including camouflaging gates, polymorphic current/voltage-based protectors,...
Abstract The first Water Cherenkov detector of the LHAASO experiment (WCDA-1) has been operating since April 2019. data for year have analyzed to test its performance by observing Crab Nebula as a standard candle. WCDA-1 achieves sensitivity 65 mCU per year, with statistical threshold 5 . To accomplish this, 97.7% cosmic-ray background rejection rate around 1 TeV and 99.8% 6 an approximate photon acceptance 50% is achieved after applying algorithm separate gamma-induced showers. angular...
Hardware security concerns such as IP piracy and hardware Trojans have triggered research into circuit protection malicious logic detection from various design perspectives. In this paper, emerging technologies are investigated by leveraging their unique properties for applications in the domain. Three example structures including camouflaging gates, polymorphic gates power regulators designed to prove high efficiency of silicon nanowire FETs graphene Sym FET prevention. Simulation results...
Colloidal quantum dot photovoltaics with a bandgap of 0.7 eV demonstrate potential to harness the infrared solar spectrum as well in waste heat recovery.
Graphene-based photodetectors have shown responsivities up to 10$^8$A/W and photoconductive gains 10$^{8}$ electrons per photon. These rely on a highly absorbing layer in close proximity of graphene, which induces shift the graphene chemical potential upon absorption, hence modifying its channel resistance. However, due semi-metallic nature readout requires dark currents hundreds $\mu$A mA, leading high power consumption needed for device operation. Here we propose novel approach responsive...
Two major challenges exist before colloidal nanocrystal solar cells can take their place in the market: So far, these devices are based on Pb/Cd-containing nanocrystals, and second, synthesis of nanocrystals takes an inert atmosphere at elevated temperatures due to use air-sensitive chemicals. In this report, a room-temperature, ambient-air for nontoxic AgBiS2 is presented. As method utilizes stable precursors, need protective environment eliminated, enabling large-scale production...
Indium tin oxide (ITO) is the most widely used transparent conductor in applications such as light emitting diodes, liquid crystal devices, touch screens, and photovoltaic cells. So far, its use has mainly been limited to visible range (380 nm–750 nm), it reflects at longer wavelengths and, consequently, transmission low. Here, we introduce a simple technique, based on high temperature annealing, which can reduce reflection near-infrared (750 nm–2400 nm). With an optimized set of parameters,...
This study evaluates the effects of Self-Myofascial Release (SMR) through foam rolling (FR), aerobic recovery (AR), and passive (PAS) on muscle following high-intensity exercise in elite volleyball athletes. A total 33 participants were randomly assigned to FR, AR, or PAS groups. Recovery was assessed using deep squat jump performance, blood lactate levels, creatine kinase (CK), Visual Analog Scale (VAS) scores. Results showed that FR AR facilitated recovery, with improving performance by...
With the globalization of integrated circuit (IC) design flow chip fabrication, intellectual property (IP) piracy is becoming main security threat. While most protection methods are dedicated for digital circuits, we trying to protect radio-frequency (RF) designs. For first time, applied split manufacturing method in RF protection. Three different implementation cases introduced and overhead tradeoffs, i.e., removal top metal layer, two layers obfuscation circuits. We also developed a...
Two-terminal tandem cell architectures are believed to be an effective way further improve the power conversion efficiency in solution processed photovoltaics. To design efficient solar cell, two key issues need considered. First, subcells with well-matched currents and complementary absorption characteristics a prerequisite for high efficiency. Second, identifying appropriate intermediate layer (IML) connect is necessary minimize optical electronic losses. PbS colloidal quantum dots (CQDs)...