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Open AccessJournal ArticleDOI

Single-Junction Organic Solar Cell with over 15% Efficiency Using Fused-Ring Acceptor with Electron-Deficient Core

TLDR
In this paper, a ladder-type electron-deficient core-based central fused ring (Dithienothiophen[3.2-b]- pyrrolobenzothiadiazole) with a benzothiadiadiazoles (BT) core was proposed to fine-tune its absorption and electron affinity.
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This article is published in Joule.The article was published on 2019-04-17 and is currently open access. It has received 3513 citations till now. The article focuses on the topics: Organic solar cell & Acceptor.

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Citations
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Journal ArticleDOI

Over 16% efficiency organic photovoltaic cells enabled by a chlorinated acceptor with increased open-circuit voltages

TL;DR: This study demonstrates that finely tuning the OPV materials to reduce the bandgap-voltage offset has great potential for boosting the efficiency and unexpectedly obtain higher open-circuit voltages and achieve a record high PCE of 16.5% by chlorination.
Journal ArticleDOI

Single-Junction Organic Photovoltaic Cells with Approaching 18% Efficiency.

TL;DR: The results demonstrate that minimizing the alkyl chains to get suitable solubility and enhanced intermolecular packing has a great potential in further improving its photovoltaic performance.
Journal ArticleDOI

Single-Junction Organic Photovoltaic Cell with 19% Efficiency

TL;DR: In this paper, an active layer comprising a new widebandgap polymer donor named PBQx-TF and a new low-bandgap non-fullerene acceptor (NFA) named eC9-2Cl is rationally designed.
References
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Journal ArticleDOI

Effect of Isomerization on High-Performance Nonfullerene Electron Acceptors

TL;DR: Two isomeric fused-ring electron acceptors, FNIC1 and FNIC2, which have the same end-groups and side-chains, but isomerIC fused-nine-ring cores, are designed and synthesized, which are significantly higher than that of PTB7-Th:FNIC1-based devices.
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High Performance All-Polymer Solar Cell via Polymer Side-Chain Engineering

TL;DR: Acknowledge support from the Office of Naval Research (N00014-14-1-0142), KAUST Center for Advanced Molecular Photovoltaics at Stanford and the Stanford Global Climate and Energy Program, NSF DMR-1303742 and the National Natural Science Foundation of China.
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"Conformation locked" strong electron-deficient poly(p-phenylene vinylene) derivatives for ambient-stable n-type field-effect transistors: synthesis, properties, and effects of fluorine substitution position.

TL;DR: This work develops two poly(p-phenylene vinylene) derivatives (PPVs), FBDPPV-1 and FBDOPV-2, for high-performance n-type polymer FETs, with low LUMO levels down to -4.38 eV and the introduction of the fluorine atoms effectively lowers the LumO levels of both polymers.
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Fine-Tuning of Molecular Packing and Energy Level through Methyl Substitution Enabling Excellent Small Molecule Acceptors for Nonfullerene Polymer Solar Cells with Efficiency up to 12.54

TL;DR: A novel small molecule acceptor MeIC with a methylated end-capping group is developed, which exhibits a higher lowest unoccupied molecular orbital (LUMO) level value, tighter molecular packing, better crystallites quality, and stronger absorption in the range of 520-740 nm.
Journal ArticleDOI

Bulk Heterojunction Solar Cells with Large Open‐Circuit Voltage: Electron Transfer with Small Donor‐Acceptor Energy Offset

TL;DR: The discovery of new (non-fullerene) electron acceptors with higher LUMOs remains undeveloped, and BHJ solar cells fabricated by semiconducting polymers with deeper HOMOs have successfully exhibited larger V oc.
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