A5066484664- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Crystallization and Solubility Studies
- Perovskite Materials and Applications
- X-ray Diffraction in Crystallography
- Gas Sensing Nanomaterials and Sensors
- Luminescence and Fluorescent Materials
- Organic Light-Emitting Diodes Research
- Electronic and Structural Properties of Oxides
- Transition Metal Oxide Nanomaterials
- Analytical Chemistry and Sensors
- Ga2O3 and related materials
- Photonic and Optical Devices
- Advanced Memory and Neural Computing
- Semiconductor Lasers and Optical Devices
- Electrostatics and Colloid Interactions
- Magnetism in coordination complexes
- Metal-Catalyzed Oxygenation Mechanisms
- Advanced NMR Techniques and Applications
- Surface Roughness and Optical Measurements
- Atomic and Subatomic Physics Research
- Quantum optics and atomic interactions
- Optical Coatings and Gratings
- Geotechnical Engineering and Soil Stabilization
- Rangeland and Wildlife Management
Jiangsu University
2023-2024
Wenzhou University
2023
California Institute for Regenerative Medicine
2022
University of California, Berkeley
2022
University of California, Santa Barbara
2018-2021
University of California System
2015-2020
Santa Barbara City College
2020
Irvine Valley College
2015
University of California, Irvine
2015
University of California, Davis
2007
Abstract Sensitive detection of near‐infrared (NIR) light enables many important applications in both research and industry. Current organic photodetectors suffer from low NIR sensitivity typically due to early absorption cutoff, responsivity, and/or large dark/noise current under bias. Herein, based on a novel ultranarrow‐bandgap nonfullerene acceptor, CO1‐4Cl, are presented, showcasing remarkable responsivity over 0.5 A W −1 the spectral region (920–960 nm), which is highest among...
Abstract In this study, a comprehensive analytical model to quantify the total nongeminate recombination losses, originating from bimolecular as well bulk and surface trap‐assisted mechanisms in nonfullerene‐based heterojunction organic solar cells is developed. This proposed successfully employed obtain different contributions current of investigated under illumination intensities. Additionally, quantitatively describes experimentally measured open‐circuit voltage versus light intensity...
Continuously enhanced photoresponsivity and suppressed dark/noise current combinatorially lead to the recent development of high-detectivity organic photodetectors with broadband sensing competence. Despite achievements, reliable photosensing enabled by (OPDs) still faces challenges. Herein, we call for heed over a universal phenomenon detrimental sensitivity dark illumination history in high-performance inverted OPDs. The phenomenon, unfavorable attainment high consistent figures-of-merit,...
Abstract PCPDTBT‐SO 3 K (CPE‐K), a conjugated polyelectrolyte, is presented as mixed conductor material that can be used to fabricate high transconductance accumulation mode organic electrochemical transistors (OECTs). OECTs are utilized in wide range of applications such analyte detection, neural interfacing, impedance sensing, and neuromorphic computing. The use interdigitated contacts enable relatively small device area comparison standard demonstrated. Such characteristics highly desired...
In this report, we investigate the binding properties of Lewis acid tris(pentafluorophenyl)borane with a base semiconducting polymer, PFPT, and subsequent mechanism band gap reduction. Experiments quantum chemical calculations confirm that formation adduct is energetically favorable (ΔG° < −0.2 eV), preferential at pyridyl nitrogen in polymer backbone over other sites. Upon formation, ultraviolet photoelectron spectroscopy indicates only slight decrease HOMO energy, implying larger reduction...
In-depth understanding of the doped and de-doped states CPE-K, a unique, water-soluble, highly conductive polymer.
Abstract The growing number of applications doped organic semiconductors drives the development highly conductive and stable materials. Lack understanding about formation properties mobile charges limits ability to improve material design. Thus largely unexplored photophysics systems are addressed here gain insights characteristics doping‐induced polarons their interactions with surroundings. study ultrafast optical processes in a self‐doped conjugated polyelectrolyte reveals that not only...
Synthetic and magnetic studies of homo- heterobimetallic complexes the redox-active ONO pincer ligand.
Abstract The molecular structure and electrical properties of two n‐type organic small molecules which have the same core but different alkyl chains are compared. effect length on charge transport along alkyl‐chain stacking direction (out‐of‐plane) is investigated by a combination techniques. results show that longer chain corresponds to lower out‐of‐plane mobility ( µ ). More importantly, it found this not only plays significant role in affecting performance diode‐structure devices such as...
Abstract Solution‐processed conducting polymer thin films are key components in organic and flexible electronic optoelectronic devices. An archetypal is poly(3,4‐ethylenedioxythiophene)‐poly(styrenesulfonate) (PEDOT:PSS), which can feature a high work function thus helps achieving Ohmic contacts for holes with many semiconductors. However, it known that residual water PEDOT:PSS lowers their detrimental device lifetime. Our photoelectron spectroscopy experiments reveal the of containing shows...
In this work, we aim to provide a better understanding of the reasons behind electron transfer inefficiencies between electrogenic bacteria and electrode in microbial fuel cells. We do so using self-doped conjugated polyelectrolyte (CPE) as surface, onto which Geobacter sulfurreducens is placed, then conductive atomic force microscopy (C-AFM) directly visualize quantify electrons that are transferring from each bacterium electrode, thereby helping us gain for overpotential losses MFCs. doing...
Based on published research and watershed assessment techniques, we evaluated the feasibility of augmenting water yields in Klamath River its major tributaries by removing western juniper, which has expanded dramatically within Basin over past 130 years. The results suggest that conversion juniper woodlands to shrublands or grasslands would not substantially increase for as a whole. However, researchers should further examine potential management both summer flow rates small spring flows...
Learner autonomy has long been considered a requirement for university students. Attempts have made to develop scales measuring learner autonomy, but those built are either not psychometrically sound, too suitable implementing in class, or based on different conceptualised definition. This study, therefore, aims at developing brief and sound scale measure level of language learners (called LLAS). Questionnaire development procedure started with adapting items from three existing...
Methylammonium lead halide perovskites have garnered significant consideration for application in numerous optoelectronic devices due to their remarkable physical properties. However, the photoconductivity performance of these organolead is still lower than conventional Si such as photodetectors, which one major barriers practical applications. Combining suitable inorganic semiconductors with perovskite may provide an alternative route fabricating photodetectors that are expected improved...
Citizen science (CS) is the practice where amateurs without formal scientific training collect data to contribute observations available scientists and decision makers (Bonney, et al., 2009). increasingly utilized for environmental protection conservation as well related purposes such education, access nature, justice, inclusion, civics equality or other ‘social goods’ (Mor Barak, 2020; Makuch & Aczel, 2020). Several eco-citizen projects are developing in China (Chen, Hsu, Yeo...
Ferroelectric materials have garnered substantial research interest in the development of novel self-powered ultraviolet (UV) photodetectors due to their polarization-induced photovoltaic (PV) effect. However, ferroelectric-based UV detectors reported so far exhibit low photocurrent, responsivity, and detectivity that hindered integration with existing platforms. Herein, we fabricate PbZr0.52Ti0.48O3 (PZT)/CuSCN heterojunction realize a detector, exhibiting enhanced photodetection owing...