Implied Voltage and Current Characterization in Organic Solar Cells using Transient Photoluminescence
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Energy Materials"
DOI: 10.1002/aenm.202501348
Abstract: Measuring photoluminescence (PL) of free charge carriers under operation conditions is a valuable tool for characterizing solar cells. However, in organic solar cells, free charge carrier PL is typically obscured by the emission from non‐dissociated… read more here.
Keywords: implied voltage; solar cells; photoluminescence; free charge ... See more keywords
Unveiling valley lifetimes of free charge carriers in monolayer WSe2.
Sign Up to like & getrecommendations! Published in 2020 at "Nano letters"
DOI: 10.1021/acs.nanolett.9b05138
Abstract: We report on nanosecond long, gate-dependent valley lifetimes of free charge carriers in monolayer WSe2, unambiguously identified by the combination of time-resolved Kerr rotation and electrical transport measurements. While the valley polarization increases when tuning… read more here.
Keywords: charge carriers; valley lifetimes; lifetimes free; free charge ... See more keywords
Missing Excitons: How Energy Transfer Competes with Free Charge Generation in Dilute-Donor/Acceptor Systems
Sign Up to like & getrecommendations! Published in 2024 at "ACS Energy Letters"
DOI: 10.1021/acsenergylett.3c01969
Abstract: Energy transfer across the donor–acceptor interface in organic photovoltaics is usually beneficial to device performance, as it assists energy transport to the site of free charge generation. Here, we present a case where the opposite… read more here.
Keywords: energy transfer; charge generation; charge; free charge ... See more keywords
Free Charge Carrier Generation by Visible-Light-Absorbing Organic Spacers in Ruddlesden–Popper Layered Perovskites
Sign Up to like & getrecommendations! Published in 2024 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.4c09706
Abstract: Incorporating organic semiconductor building blocks as spacer cations into layered hybrid perovskites provides an opportunity to develop new materials with novel optoelectronic properties, including nanoheterojunctions that afford spatial separation of electron and hole transport. However,… read more here.
Keywords: light absorbing; free charge; visible light; ruddlesden popper ... See more keywords
Anticorrelated photoluminescence and free charge generation proves field-assisted exciton dissociation in low-offset PM6:Y5 organic solar cells
Sign Up to like & getrecommendations! Published in 2023 at "APL Materials"
DOI: 10.1063/5.0151580
Abstract: Understanding the origin of inefficient photocurrent generation in organic solar cells with low energy offset remains key to realizing high-performance donor-acceptor systems. Here, we probe the origin of field-dependent free-charge generation and photoluminescence in non-fullereneacceptor… read more here.
Keywords: charge generation; generation; offset; free charge ... See more keywords
A Sub-Sampling-Chopper PLL With Residual-Free Charge-Sharing Canceling Achieving 39-fsrms Jitter and -258.2-dB FoMJ
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2025.3584215
Abstract: This brief presents a sub-sampling-chopper (SS-CPLL) that incorporates a chopper-stabilized phase detector (PD) and charge pump (CP), along with a novel low-power, residual-free charge-share-canceling (RF-CSC) scheme. It features: Firstly, a cross-coupled pre-charging across two chopping… read more here.
Keywords: sub sampling; sampling chopper; residual free; jitter ... See more keywords
Who is @ease? Visitors’ characteristics and working method of professionally supported peer‐to‐peer youth walk‐in centres, anonymous and free of charge
Sign Up to like & getrecommendations! Published in 2022 at "Early Intervention in Psychiatry"
DOI: 10.1111/eip.13294
Abstract: Although mental disorders often emerge early in life, only a minority of young people receive timely and appropriate mental health care. A worldwide youth mental health movement aims to prevent development and persistence of psychiatric… read more here.
Keywords: youth; anonymous free; peer; free charge ... See more keywords
Incidence of Free of Charge Physiotherapy in a Danish National Cohort of Stroke, Parkinson’s Disease, Multiple Sclerosis and Rheumatoid Arthritis Patients
Sign Up to like & getrecommendations! Published in 2020 at "Clinical Epidemiology"
DOI: 10.2147/clep.s223000
Abstract: Background Denmark is a welfare state with a publically funded healthcare system that includes the right to free of charge physiotherapy (FCP) for patients with chronic or progressive disease who fulfill strict criteria. The aim… read more here.
Keywords: parkinson disease; multiple sclerosis; disease; rheumatoid arthritis ... See more keywords