Identification of the Origin of Ultralow Dark Currents in Organic Photodiodes
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202209598
Abstract: Organic bulk heterojunction photodiodes (OPDs) attract attention for sensing and imaging. Their detectivity is typically limited by a substantial reverse bias dark current density (Jd). Recently, using thermal admittance or spectral photocurrent measurements, Jd has… read more here.
Keywords: gap states; origin ultralow; ultralow dark; charge generation ... See more keywords
Compromising Charge Generation and Recombination of Organic Photovoltaics with Mixed Diluent Strategy for Certified 19.4% Efficiency
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Materials"
DOI: 10.1002/adma.202300400
Abstract: The ternary blend is demonstrated as an effective strategy to promote the device performance of organic photovoltaics (OPVs) due to the dilution effect. While the compromise between the charge generation and recombination remains a challenge.… read more here.
Keywords: charge generation; generation recombination; strategy; btp ... See more keywords
Charge Generation and Enhancement of Key Components of Triboelectric Nanogenerators: A Review
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Materials"
DOI: 10.1002/adma.202409833
Abstract: The past decade has witnessed remarkable progress in high‐performance Triboelectric nanogenerators (TENG) with the design and synthesis of functional dielectric materials, the exploration of novel dynamic charge transport mechanisms, and the innovative design of architecture,… read more here.
Keywords: triboelectric nanogenerators; charge generation; charge; charge density ... See more keywords
Highly-efficient tandem organic light-emitting device employing bis-4,6-(3,5-di-3-pyridylphenyl)-2-methylpyrimi-dine doped with cesium azide in charge generation unit
Sign Up to like & getrecommendations! Published in 2018 at "Organic Electronics"
DOI: 10.1016/j.orgel.2017.11.022
Abstract: Abstract In this research, we have investigated the charge generation and electron injection processes in charge generation unit (CGU) consisting of CsN3-doped Bis-4, 6-(3, 5-di-3-pyridylphenyl)-2-methylpyrimi-dine (CsN3:B3PYMPM)/Al/1, 4, 5, 8, 9, 11-Hexaazatriphenylene-hexacarbonitrile (HAT-CN). By employing this… read more here.
Keywords: generation unit; charge generation; device;
Molecular Insight into Efficient Charge Generation in Low-Driving-Force Nonfullerene Organic Solar Cells.
Sign Up to like & getrecommendations! Published in 2022 at "Accounts of chemical research"
DOI: 10.1021/acs.accounts.1c00742
Abstract: ConspectusFor organic solar cells (OSCs), charge generation at the donor/acceptor interfaces is regarded as a two-step process: driven by the interfacial energy offsets, the excitons produced by light absorption are first dissociated into the charge-transfer… read more here.
Keywords: charge generation; energy; charge; driving force ... See more keywords
Solution-Processed Conducting Polymer/Metal Oxide Charge Generation Layer: Preparation, Electrical Properties, and Charge Generation Mechanism
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.6b11838
Abstract: Conducting polymer/metal oxide heterostructures have been commonly used in solution-processed tandem organic optoelectronic devices as charge generation layer (CGL) or charge recombination layer. However, the underlying working mechanism remains unexplored. We optimize the preparation of… read more here.
Keywords: generation; solution processed; charge generation; polymer ... See more keywords
Exciton and Charge Generation in PC60BM Thin Films
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.7b03962
Abstract: Transient absorption spectroscopy is employed to contrast the photophysics of [6,6]-phenyl C61 butyric acid methyl ester (PC60BM) dispersed in a polystyrene matrix and as a neat film. For the dispersed PC60BM:polystyrene film, singlet excitons are… read more here.
Keywords: pc60bm; generation pc60bm; generation; exciton charge ... See more keywords
Synergistic Charge Generation and Collection Enabled by Incorporation of Crystalline Polymer for Ultrafast-Response Dual-Band Perovskite/Organic Photodetectors.
Sign Up to like & getrecommendations! Published in 2025 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.5c17019
Abstract: Dual-band photodetectors (PDs) capable of selectively responding to both visible and near-infrared (NIR) light are essential for applications in optical communication, medical diagnostics, and artificial vision systems. In this work, we report a high-performance visible/NIR… read more here.
Keywords: dual band; band; perovskite organic; charge generation ... See more keywords
Solution-Processed Metal-Oxide p-n Charge Generation Junction for High-Performance Inverted Quantum-Dot Light-Emitting Diodes.
Sign Up to like & getrecommendations! Published in 2017 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.7b14584
Abstract: We report solution-processed metal-oxide p-n junction, Li-doped CuO (Li:CuO) and Li-doped ZnO (Li:ZnO), as a charge generation junction (CGJ) in quantum-dot light-emitting diode (QLED) at reverse bias. Efficient charge generation is demonstrated in a stack… read more here.
Keywords: cuo; zno; charge; junction ... 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
Spectrally Resolved Exciton Polarizability for Understanding Charge Generation in Organic Bulk Hetero-Junction Diodes.
Sign Up to like & getrecommendations! Published in 2024 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.4c02361
Abstract: Despite decades of research, the dominant charge generation mechanism in organic bulk heterojunction (BHJ) devices is not completely understood. While the local dielectric environments of the photoexcited molecules are important for exciton dissociation, conventional characterizations… read more here.
Keywords: polarizability; charge generation; exciton polarizability; organic bulk ... See more keywords