Search Results - chenfeng+he

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SIGMA DELTA QUANTIZATION FOR IMAGES
VAlue proposition The value proposition of this technology lies in its innovative approach to image quantization using Sigma Delta quantization. By segmenting pixel values into columns and quantizing each column as a whole using Sigma Delta modulation, the technique minimizes accumulated quantization error, thereby enhancing the reconstruction quality...
Published: 6/27/2026   |   Updated: 6/27/2026   |   Inventor(s): Rongrong Wang, He Lyu
Keywords(s):  
Category(s): Computer Software
2D Materials for Selectorless Resistive Switching Memory
Invention Description Selectorless resistive random-access memory is crucial for achieving high-density crossbar scaling, however, suppressing sneak path currents (SPCs) without external selector components is still a major challenge. Conventional von Neumann architectures, which transfer data between the process unit towards memory, struggle to keep...
Published: 6/22/2026   |   Updated: 6/22/2026   |   Inventor(s): Feng Yan, Ying-Chen (Daphne) Chen
Keywords(s):  
Category(s): Advanced Materials/Nanotechnology, Artificial Intelligence/Machine Learning, Computing & Information Technology, Microelectronics, Semiconductors, Materials & Processes
Printing Nanoporous Ultrathin Membranes for Lithium-Sulfur Batteries
RPI ID: 2019-021-401 Innovation Summary: This technology provides a graphene oxide (GO) printed coating for separator membranes in lithium-sulfur (Li–S) batteries. The printed GO layers block polysulfide migration, addressing the ‘shuttle effect’ that reduces Coulombic efficiency and cycle life. Unlike traditional coatings,...
Published: 3/10/2026   |   Updated: 3/10/2026   |   Inventor(s): Miao Yu, Fanglei Zhou, Feng Zhao, Jinyun Liao
Keywords(s): Li-S battery, Lithium-Sulfur, Membranes, polysulfide blocking, Rechargeable batteries, ultrathin functional coatings
Category(s): Energy, Environment and Smart Systems
Tailored Molecular Ionic Composite Electrolytes for High-Voltage Solid-State Lithium Batteries with Improved Cycling Performance
THE CHALLENGE The development of solid-state lithium batteries faces a major business challenge: creating a polymer electrolyte that is both technically reliable and commercially viable. While these batteries promise safer and more energy-dense storage by eliminating flammable liquids, current polymer electrolytes struggle with low ionic conductivity...
Published: 1/15/2026   |   Updated: 1/15/2026   |   Inventor(s): Feng Lin, Jungki Min, Louis Madsen
Keywords(s):  
Category(s): Technology Classifications > Chemicals/Materials, Technology Classifications > Energy
Ultrafast Thin-Film Vapor Deposition Technique
Invention Description The demand for advanced thin-film deposition techniques has grown substantially in recent years, driven by the development of next-generation electronic, optoelectronic, and energy devices. Traditional deposition methods, such as chemical vapor deposition, molecular beam epitaxy, and physical vapor deposition, have well-established...
Published: 2/26/2026   |   Updated: 11/18/2025   |   Inventor(s): Feng Yan, Lin Li
Keywords(s):  
Category(s): Semiconductors, Materials & Processes, Microelectronics, Physical Science, Semiconductor Devices, Manufacturing/Construction/Mechanical
Antisolvent-mediated Air Quench for High Efficiency Air-processed Carbon-Based Planar Perovskite Solar Cells
Invention Description Perovskite solar cells (PSCs) have been rigorously researched and pursued as a potential low-cost, next-generation thin-film photovoltaic technology. PSCs have now achieved certified power conversion efficiencies (PCEs) exceeding 26%, which paves the way to commercial upscale manufacturing. However, the commercialization of PSCs...
Published: 2/26/2026   |   Updated: 10/7/2025   |   Inventor(s): Feng Yan, Jacob Wall
Keywords(s): Materials and Electronics, Solar cells
Category(s): Advanced Materials/Nanotechnology, Alternative Energy, Energy & Power, Manufacturing/Construction/Mechanical, Physical Science, Semiconductors, Materials & Processes
Rechargeable battery electrolytes for extreme cycling conditions
Background As the world increasingly relies on portable electronics, electric vehicles, and renewable energy storage, the demand for high-performance, reliable, and durable rechargeable batteries continues to grow. However, current lithium-ion batteries (LIBs) face significant challenges under extreme operating condi­tions, such as subzero temperatures,...
Published: 5/27/2026   |   Updated: 10/6/2025   |   Inventor(s): Arumugam Manthiram, Zehao Cui, Chen Liu
Keywords(s):  
Category(s): Physical sciences > Energy > Battery or electrochemical
Printable and Lightweight Perovskite Solar Films and Devices
Invention Description Perovskite solar cells (PSCs) are a next generation thin film solar cell technology with advantages including high efficiency, low-cost fabrication approaches and flexile applications. However, current PSCs still require noble metal electrodes as well as expensive transparent electrodes which increase overall cost and may have...
Published: 2/26/2026   |   Updated: 9/25/2025   |   Inventor(s): Feng Yan
Keywords(s):  
Category(s): Advanced Materials/Nanotechnology, Physical Science, Alternative Energy, Energy & Power
Ultrafast Doping in Polycrystalline Chalcogenides
Background Cadmium telluride (CdTe) photovoltaic technology is considered one of the most successful commercial thin film solar cell technologies, boasting a power conversion efficiency of approximately 23%. Despite this achievement, the current power conversion efficiency for CdTe modules is still far from the theoretical power conversion efficiency...
Published: 2/26/2026   |   Updated: 9/15/2025   |   Inventor(s): Feng Yan
Keywords(s): PS-Advanced Materials and Nanotechnology, PS-Energy and Power, PS-Environmental, Solar cells, Solar Energy, Thin Films
Category(s): Advanced Materials/Nanotechnology, Alternative Energy, Energy & Power, Environmental, Physical Science
All-Inorganic Perovskites/Chalcogenides Multijunction Solar Cells
Background All-inorganic perovskite solar cells (AI-PSCs) have emerged as a promising technology in the field of photovoltaics, offering significant advancements in efficiency and stability. Perovskite materials as solar energy absorbers are traditionally developed with hybrid organic-inorganic perovskites. These types of hybrid materials demonstrate...
Published: 2/26/2026   |   Updated: 9/15/2025   |   Inventor(s): Feng Yan
Keywords(s): PS-Advanced Materials and Nanotechnology, PS-Energy and Power, PS-Environmental, Solar cells, Solar Energy, Thin Films
Category(s): Advanced Materials/Nanotechnology, Alternative Energy, Energy & Power, Environmental, Physical Science
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