A 9,9′-spirobi[9H-fluorene]-cored perylenediimide derivative and its application in organic solar cells as a non-fullerene acceptor

2016 ◽  
Vol 52 (8) ◽  
pp. 1649-1652 ◽  
Author(s):  
Jinduo Yi ◽  
Yiling Wang ◽  
Qun Luo ◽  
Yi Lin ◽  
Hongwei Tan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Organic Solar Cells ◽  
Light Absorption ◽  
Polymer Solar Cells ◽  
Lumo Energy ◽  
Lumo Energy Level

A structurally orthogonal molecule (SBF-PDI4) with a 9,9′-spirobi[9H-fluorene] (SBF) core and four perylenediimide (PDI) at periphery was developed for use in polymer solar cells. Proper LUMO energy level (−4.1 eV) and good light absorption ability over 450–550 nm make it an excellent non-fullerene acceptor.

scholarly journals Designing an asymmetrical isomer to promote the LUMO energy level and molecular packing of a non-fullerene acceptor for polymer solar cells with 12.6% efficiency

2018 ◽  
Vol 9 (42) ◽  
pp. 8142-8149 ◽  
Author(s):  
Wei Gao ◽  
Qiaoshi An ◽  
Cheng Zhong ◽  
Zhenghui Luo ◽  
Ruijie Ming ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Polymer Solar Cells ◽  
Molecular Packing ◽  
Lumo Energy ◽  
Lumo Energy Level

PSCs based on PBDB-T:MeIC1 achieved a larger Voc and Jsc and thus boosted the PCE compared to PBDB-T:MeIC-based PSCs.

scholarly journals A polymer acceptor with an optimal LUMO energy level for all-polymer solar cells

2016 ◽  
Vol 7 (9) ◽  
pp. 6197-6202 ◽  
Author(s):  
Zicheng Ding ◽  
Xiaojing Long ◽  
Chuandong Dou ◽  
Jun Liu ◽  
Lixiang Wang
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Photon Energy ◽  
Polymer Solar Cells ◽  
Energy Losses ◽  
Lumo Energy ◽  
Lumo Energy Level ◽  
Polymer Acceptor

A new polymer acceptor based on the BNBP unit with an optimal LUMO energy level has been developed. The resulting all-polymer solar cells show high PCEs, remarkably highVocvalues and small photon energy losses.

Study on the photophysical and electrochemical property and molecular simulation of broadly absorbing and emitting perylene diimide derivatives with large D–π–A structure

RSC Advances ◽  
2014 ◽  
Vol 4 (82) ◽  
pp. 43538-43548 ◽  
Author(s):  
Long Yang ◽  
Yuyan Yu ◽  
Jin Zhang ◽  
Yuanqing Song ◽  
Long Jiang ◽  
...  
Keyword(s):  
Energy Level ◽  
Molecular Simulation ◽  
Electrochemical Property ◽  
Light Absorption ◽  
Perylene Diimide ◽  
Synthetic Route ◽  
Lumo Energy ◽  
Lumo Energy Level ◽  
Perylene Diimide Derivatives

A simple synthetic route to obtain perylene diimide candidate materials with large conjugation, obvious ICT, broad light-absorption/emission, concentration-dependant ð–ð staking induced fluorescence and low-lying LUMO energy level.

Improving the charge carrier transport of organic solar cells by incorporating a deep energy level molecule

2017 ◽  
Vol 19 (1) ◽  
pp. 245-250 ◽  
Author(s):  
Chunyu Liu ◽  
Zhiqi Li ◽  
Zhihui Zhang ◽  
Xinyuan Zhang ◽  
Liang Shen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Charge Carrier ◽  
Organic Solar Cells ◽  
Carrier Transport ◽  
Polymer Solar Cells ◽  
Device Performance ◽  
Charge Carrier Transport ◽  
P Type ◽  
Tcnq Molecule

A p-type F4-TCNQ molecule was incorporated into the P3HT/ICBA active layer to enhance the device performance of polymer solar cells from 4.50% to 5.83%.

scholarly journals Single particle dual plasmonic effect for efficient organic solar cells

2021 ◽  
Author(s):  
Adi Prasetio ◽  
Soyeon Kim ◽  
Muhammad Jahandar ◽  
Dong Chan Lim
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Light Absorption ◽  
Resonance Effect ◽  
Localized Surface Plasmon ◽  
Main Role ◽  
Charge Generation ◽  
One Pot ◽  
Wide Range ◽  
Light Reflectance

AbstractIncorporating localized surface plasmon resonance (LSPR) into organic solar cells (OSCs) is a popular method for improving the power conversion efficiency (PCE) by introducing better light absorption. In this work, we designed a one-pot synthesis of Ag@SiO2@AuNPs dual plasmons and observed an immense increase in light absorption over a wide range of wavelengths. Ag@SiO2 plays the main role in enhancing light absorption near the ultraviolet band. The silica shell can also further enhance the LSP resonance effect and prevent recombination on the surface of AgNPs. The AuNPs on the Ag@SiO2 shell exhibited strong broad visible-light absorption due to LSP resonance and decreased light reflectance. By utilizing Ag@SiO2@AuNPs, we could enhance the light absorption and photoinduced charge generation, thereby increasing the device PCE to 8.57% and Jsc to 17.67 mA cm−2, which can be attributed to the enhanced optical properties. Meanwhile, devices without LSPR nanoparticles and Ag@SiO2 LSPR only showed PCEs of 7.36% and 8.18%, respectively.

scholarly journals The Effects of Molecular Packing Behavior of Small-Molecule Acceptors in Ternary Organic Solar Cells

2021 ◽  
Vol 11 (2) ◽  
pp. 755
Author(s):  
Eunhee Lim
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Ternary System ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Orbital Energy ◽  
Working Mechanism ◽  
Energy Level Structure ◽  
The Third ◽  
Molecular Backbone

Herein, two diketopyrrolopyrrole (DPP)-based, small-molecule isomers, o- and p-DPP-PhCN, were introduced as acceptors in ternary organic solar cells (OSCs). The isomers have the same molecular backbone but differ in the positions of the cyanide (CN) substituents (ortho and para), which greatly affects their packing behavior. Ternary solar cells composed of poly(3-hexylthiophene) (P3HT):DPP-PhCN:phenyl-C61-butyric acid methyl ester (PCBM) were fabricated, and the effects of the different packing behaviors of the third component on the device performance and the working mechanism of the ternary cells were investigated. The addition of o-DPP-PhCN with a relatively high-lying lowest unoccupied molecular orbital energy level resulted in an increase in the open-circuit voltage (VOC) in the ternary devices, demonstrating the alloy-like structure of the two acceptors (o-DPP-PhCN and PCBM) in the ternary system. However, the p-DPP-PhCN-based ternary cells exhibited VOC values similar to that of a P3HT:PCBM binary cell, irrespective of the addition of p-DPP-PhCN, indicating a cascade energy-level structure in the ternary system and an effective charge transfer from the P3HT to the PCBM. Importantly, by increasing the addition of p-DPP-PhCN, the short-circuit current density increased substantially, resulting in pronounced shoulder peaks in the external quantum efficiency responses in the long-wavelength region, corresponding to the contribution of the photocurrent generated by the light absorption of p-DPP-PhCN. Despite sharing the same molecular backbone, the two DPP-PhCNs exhibited substantially different packing behaviors according to the position of their CN substituents, which also greatly affected the working mechanism of the ternary devices fabricated using the DPP-PhCNs as the third component.

scholarly journals Fullerene-free polymer solar cells processed from non-halogenated solvents in air with PCE of 4.8%

2017 ◽  
Vol 53 (6) ◽  
pp. 1164-1167 ◽  
Author(s):  
Sergey V. Dayneko ◽  
Arthur D. Hendsbee ◽  
Gregory C. Welch
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Large Scale ◽  
Polymer Solar Cells ◽  
Scale Production ◽  
Large Scale Production ◽  
Halogenated Solvents

Progress towards practical organic solar cells amenable to large scale production is reported.

Characterization of precursor-based ZnO transport layers in inverted polymer solar cells

2014 ◽  
Vol 2 (41) ◽  
pp. 8761-8767 ◽  
Author(s):  
Nadia Grossiord ◽  
Paul de Bruyn ◽  
Date J. D. Moet ◽  
Ronn Andriessen ◽  
Paul W. M. Blom
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Polymer Solar Cells ◽  
Inverted Polymer Solar Cells

Partly crystalline ZnO-based transport layers made from precursor solutions are characterized and used to produce well-performing inverted organic solar cells.

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