Search Results - feng+yan

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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: 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: 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
Multi-parametric Acoustic, Optical and Mechanical Imaging of Cervical Tissue Insufficiencies to Predict Preterm Birth
An enhanced image-guidance system that integrates ultrasound and photoacoustic into existing ablation systems to provide an enhanced image-guidance system for identification of cervical tissue changes during pregnancy and postpartum. Technology Summary Preterm delivery is a main cause of perinatal morbidity and mortality worldwide, which is associated...
Published: 9/15/2025   |   Inventor(s): Mohammad Mehrmohammadi, Sonia Hassan, Edgar Hernandez-Andrade, Yan Yan, Maryam Basij
Keywords(s): Driving Lifelong Health
Category(s): Life Science, Medical Devices, Imaging, Acoustics, Women's Health
Group V Doping in Thin Film Solar Cells
The Problem: Cost-effective renewable energy sources are needed more than ever to meet the growing demand for sustainable energy. Cadmium Telluride (CdTe) solar cells are gaining popularity to meet this need due to their relatively low production costs. However, this technology requires doping in order to reach the efficiencies required for commercial...
Published: 10/2/2024   |   Inventor(s): Feng Yan
Keywords(s):  
Category(s): Technology Classifications > Manufacturing, Technology Classifications > Energy
Highly Efficient, Cost Effective and Hot-pressed Carbon-based Perovskite Solar Cell
The Problem: Organic-inorganic halide perovskite solar cells (PSCs) have been gaining a lot of attention since it was first fabricated in 2009 owing to their high-power conversion efficiency (PCE) and relatively simple fabrication process. The efficiency of PSCs has crossed 25.5% in just over a decade. A typical PSC has a structure that contains a...
Published: 2/27/2023   |   Inventor(s): Feng Yan
Keywords(s):  
Category(s): Technology Classifications > Energy