Enhancing the Photovoltaic Performance of Ladder‐Type Heteroheptacene‐based Nonfullerene Acceptors by Incorporating Halogen Atoms on Their Ending Groups
Sign Up to like & getrecommendations! Published in 2021 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202010436
Abstract: Ending group halogenation is an effective strategy for modulating the energy levels, bandgaps, and intermolecular interactions of nonfullerene acceptors. Understanding the influence of different halogen atoms on the acceptor properties is of great importance for… read more here.
Keywords: halogen atoms; performance; nonfullerene acceptors; ending groups ... See more keywords
Organic Photovoltaics Utilizing Small‐Molecule Donors and Y‐Series Nonfullerene Acceptors
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202206566
Abstract: The emerging Y‐series nonfullerene acceptors (Y‐NFA) has prompted the rapid progress of power conversion efficiency (PCE) of all‐small‐molecule organic solar cells (ASM‐OSCs) from around 12% to 17%. The excellent PCE improvement benefits from not only… read more here.
Keywords: small molecule; molecule donors; molecule; series nonfullerene ... See more keywords
Synergistic Effects of Chlorination and Branched Alkyl Side Chain on the Photovoltaic Properties of Simple Nonfullerene Acceptors with Quinoxaline as the Core.
Sign Up to like & getrecommendations! Published in 2021 at "ChemSusChem"
DOI: 10.1002/cssc.202100689
Abstract: To date, the fused-ring electron acceptors show the best photovoltaic performances, and the development of simple nonfullerene acceptors via intramolecular noncovalent interactions can reduce synthetic costs. In this work, four simple nonfullerene acceptors with an… read more here.
Keywords: nonfullerene acceptors; alkyl side; branched alkyl; chlorination ... See more keywords
Simplified Y6-Based Nonfullerene Acceptors: In-Depth Study on Molecular Structure-Property Relation, Molecular Dynamics Simulation, and Charge Dynamics.
Sign Up to like & getrecommendations! Published in 2022 at "Small"
DOI: 10.1002/smll.202206547
Abstract: Two new Y6 derivatives of symmetrical YBO-2O and asymmetrical YBO-FO nonfullerene acceptors (NFAs) are prepared with a simplified synthetic procedure by incorporating octyl and fluorine substituents onto the terminal 2-(3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (INCN) moiety. By moving the… read more here.
Keywords: structure; molecular dynamics; dynamics simulation; nonfullerene acceptors ... See more keywords
Substituents on the end group subtle tuning the energy levels and absorptions of small-molecule nonfullerene acceptors
Sign Up to like & getrecommendations! Published in 2018 at "Dyes and Pigments"
DOI: 10.1016/j.dyepig.2018.03.061
Abstract: Abstract Two new small-molecule nonfullerene acceptors containing methyl- and fluorine-substituted 2-(2,3-dihydro-3-oxo-1H-inden-1-ylidene)propanedinitrile (INCN) as end groups, namely, NFBDT-Me and NFBDT-F, were designed, synthesized and applied in organic solar cells. The influence of the methyl and fluorine… read more here.
Keywords: nonfullerene acceptors; molecule; small molecule; end group ... See more keywords
Asymmetric indenothienothiophene-based unfused core for A-D-A type nonfullerene acceptors
Sign Up to like & getrecommendations! Published in 2020 at "Dyes and Pigments"
DOI: 10.1016/j.dyepig.2020.108495
Abstract: Abstract In this work, we design and synthesize three asymmetric acceptor-donor-acceptor (A-D-A) type nonfullerene acceptors (ITOTC, ITUTC and ITUIC) using a novel indenothienothiophene-based unfused core together with two different electron-deficient terminal units (2-(6-oxo-5,6-dihydro-4H-cyclopenta[c]thiophen-4-ylidene)malononitrile for ITOTC… read more here.
Keywords: unfused core; nonfullerene acceptors; indenothienothiophene based; based unfused ... See more keywords
Two compatible nonfullerene acceptors with similar structures as alloy for efficient ternary polymer solar cells
Sign Up to like & getrecommendations! Published in 2017 at "Nano Energy"
DOI: 10.1016/j.nanoen.2017.05.060
Abstract: Abstract In this work, we fabricated high efficient ternary PSCs based on two compatible non-fullerene acceptors (IDIC and ITIC) with similar chemical structures and one new D-A-type polymer (PSTZ) donor. By inserting ITIC into the… read more here.
Keywords: nonfullerene acceptors; efficient ternary; similar structures; two compatible ... See more keywords
Theoretical Study of Excited State Charge Transfer Characteristics based on A–D–A and A–DA′D–A Type Nonfullerene Acceptors
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.1c01488
Abstract: The excited state charge transfer (CT) characteristics of nonfullerene acceptors play an important role in determining the photo excited CT mechanisms and performance for organic solar cells (OSCs)... read more here.
Keywords: excited state; transfer characteristics; state charge; nonfullerene acceptors ... See more keywords
Photoinduced Electron Transfer in Asymmetrical Perylene Diimide: Understanding the Photophysical Processes of Light-Absorbing Nonfullerene Acceptors
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.7b00263
Abstract: In bulk-heterojunction-based organic photovoltaics, strong light-absorbing ability is one of the most important advantages of nonfullerene acceptors prior to fullerene derivatives. Herein, a series of electron-donating units was asymmetrically connected at the imide positions of… read more here.
Keywords: photoinduced electron; nonfullerene acceptors; electron transfer; transfer ... See more keywords
Effect of Alkyl Chain Lengths of Highly Crystalline Nonfullerene Acceptors on Open-Circuit Voltage of All-Small-Molecule Organic Solar Cells
Sign Up to like & getrecommendations! Published in 2020 at "ACS Applied Energy Materials"
DOI: 10.1021/acsaem.0c02227
Abstract: Three dicyanostyrylbenzene (DCS)-based small-molecule nonfullerene acceptors (SM-NFAs), NIDCS-MO, NIDCS-PrO, and NIDCS-PeO, bearing alkoxy chains with different lengths from methoxy to pentyloxy ar... read more here.
Keywords: nonfullerene acceptors; effect alkyl; small molecule; chain lengths ... See more keywords
Simple Tricyclic-Based A-π-D-π-A-Type Nonfullerene Acceptors for High-Efficiency Organic Solar Cells.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.1c22520
Abstract: Nonfused-ring electron acceptors have attracted much attention in recent years due to their advantages of simple synthetic routes, high yields, low costs, reasonable power conversion efficiencies (PCEs), and so on. Herein, three simple A-π-D-π-A-type acceptors… read more here.
Keywords: tricyclic based; type nonfullerene; type; simple tricyclic ... See more keywords