Non-fullerene small molecule acceptors with three-dimensional thiophene/selenophene-annulated perylene diimides for efficient organic solar cells

2020 ◽  
Vol 8 (20) ◽  
pp. 6749-6755 ◽  
Author(s):  
Jiawei Pan ◽  
Ling Wang ◽  
Wei Chen ◽  
Shenglong Sang ◽  
Hua Sun ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Carrier Mobility ◽  
Energy Levels ◽  
Three Dimensional ◽  
Molecular Configuration ◽  
Perylene Diimides ◽  
High Carrier Mobility ◽  
High Carrier

Three-dimensional non-fullerene acceptors with a spiro core linked with S/Se fused perylene diimides possess appropriate energy levels, twisted molecular configuration and high carrier mobility, leading to a PCE of 6.95% for organic solar cells.

Benzotriazacycle Cored Perylene Diimide Non-fullerene Acceptors for High-performance Organic Solar Cells

2021 ◽  
Vol 01 ◽  
Author(s):  
Min Deng ◽  
Zhenkai Ji ◽  
Xiaopeng Xu ◽  
Liyang Yu ◽  
Qiang Peng
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Energy Levels ◽  
Three Dimensional ◽  
Molecular Structures ◽  
Perylene Diimide ◽  
Photon Absorption ◽  
Optoelectronic Property ◽  
Design Synthesis

Background: Perylene diimide (PDI) is among the most investigated non-fullerene electron acceptor for organic solar cells (OSCs). Constructing PDI derivatives into three-dimensional propeller-like molecular structures is not only one of the viable routes to suppress the over aggregation tendency of the PDI chromophores, but also raises possibilities to tune and optimize the optoelectronic property of the molecules. Objective: In this work, we reported the design, synthesis, and characterization of three electron-accepting materials, namely BOZ-PDI, BTZ-PDI, and BIZ-PDI, each with three PDI arms linked to benzotrioxazole, benzotrithiazole, and benzotriimidazole based center cores, respectively. Method: The introduction of electron-withdrawing center cores with heteroatoms does not significantly complicate the synthesis of the acceptor molecules but drastically influences the energy levels of the propeller-like PDI derivatives. Result: The highest power conversion efficiency was obtained with benzoxazole-based BOZ-PDI reaching 7.70% for its higher photon absorption and charge transport ability. Conclusion: This work explores the utilization of electron-withdrawing cores with heteroatoms in the propeller-like PDI derivatives, which provides a handy tool to construct high-performance non-fullerene acceptor materials.

Propeller-shaped small molecule acceptors containing a 9,9′-spirobifluorene core with imide-linked perylene diimides for non-fullerene organic solar cells

2016 ◽  
Vol 4 (45) ◽  
pp. 10610-10615 ◽  
Author(s):  
Kyu Chan Song ◽  
Ranbir Singh ◽  
Jaewon Lee ◽  
Dong Hun Sin ◽  
Hansol Lee ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Perylene Diimides

Novel propeller-shaped non-fullerene small molecule acceptors with imide-linked perylene diimides on a 9,9′-spirobi[9H-fluorene] core, namely SF-iPDI2 and SF-iPDI4, were designed and synthesized for organic solar cells.

Low temperature plasma processing of nc-Si/a-SiNx:H QD thin films with high carrier mobility and preferred (220) crystal orientation: a promising material for third generation solar cells

RSC Advances ◽  
2014 ◽  
Vol 4 (70) ◽  
pp. 36929-36939 ◽  
Author(s):  
Basudeb Sain ◽  
Debajyoti Das
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Low Temperature ◽  
Inductively Coupled Plasma ◽  
Crystal Orientation ◽  
Carrier Mobility ◽  
Third Generation ◽  
Temperature Plasma ◽  
High Carrier Mobility ◽  
High Carrier

The nc-Si-QDs/a-SiNx:H (∼5.7–1.3 nm) thin-films grown by low-temperature Inductively-coupled plasma, possess high carrier-mobility, electrical-conductivity, photosensitivity and preferred (220) crystal orientation, suitable for third-generation solar cells.

scholarly journals Graphene- and Carbon-Nanotube-Based Transparent Electrodes for Semitransparent Solar Cells

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1503 ◽  
Author(s):  
Kyu-Tae Lee ◽  
Dong Park ◽  
Hyoung Baac ◽  
Seungyong Han
Keyword(s):  
Solar Cells ◽  
Carrier Mobility ◽  
Optical Transmittance ◽  
Future Research ◽  
Transparent Electrodes ◽  
Metal Grid ◽  
High Optical Transmittance ◽  
Doped Graphene ◽  
High Carrier Mobility ◽  
High Carrier

A substantial amount of attention has been paid to the development of transparent electrodes based on graphene and carbon nanotubes (CNTs), owing to their exceptional characteristics, such as mechanical and chemical stability, high carrier mobility, high optical transmittance, and high conductivity. This review highlights the latest works on semitransparent solar cells (SSCs) that exploit graphene- and CNT-based electrodes. Their prominent optoelectronic properties and various fabrication methods, which rely on laminated graphene/CNT, doped graphene/CNT, a hybrid graphene/metal grid, and a solution-processed graphene mesh, with applications in SSCs are described in detail. The current difficulties and prospects for future research are also discussed.

Vapor Incubation of FASnI3 films for Efficient and Stable Lead-free Inverted Perovskite Solar Cells

2021 ◽  
Author(s):  
Ligang Xu ◽  
Chi Zhang ◽  
Xiangyun Feng ◽  
Wenxuan Lv ◽  
Zuqiang Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carrier Mobility ◽  
Perovskite Solar Cells ◽  
Environmentally Friendly ◽  
Lead Free ◽  
Narrow Bandgap ◽  
High Carrier Mobility ◽  
High Carrier

Tin perovskites with narrow bandgap and high carrier mobility are highly attractive for environmentally friendly perovskite solar cells (PSCs), but the Sn-based PSCs are still less efficient and stable owing...

scholarly journals Cover Picture: A Three-dimensional Non-fullerene Small Molecule Acceptor for Solution-processed Organic Solar Cells (Chin. J. Chem. 11/2017)

2017 ◽  
Vol 35 (11) ◽  
pp. 1651-1651
Author(s):  
Meijia Chang ◽  
Yunchuang Wang ◽  
Nailiang Qiu ◽  
Yuan-Qiu-Qiang Yi ◽  
Xiangjian Wan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Three Dimensional ◽  
Solution Processed

Highly efficient heterojunction solar cells enabled by edge-modified tellurene nanoribbons

2020 ◽  
Vol 22 (48) ◽  
pp. 28414-28422
Author(s):  
Yunzhi Gao ◽  
Kai Wu ◽  
Wei Hu ◽  
Jinlong Yang
Keyword(s):  
Solar Cells ◽  
Visible Light ◽  
Band Gap ◽  
Light Absorption ◽  
Carrier Mobility ◽  
Two Dimensional ◽  
Visible Light Absorption ◽  
Heterojunction Solar Cells ◽  
High Carrier Mobility ◽  
High Carrier

Tellurene, a two-dimensional (2D) semiconductor, meets the requirements for optoelectronic applications with desirable properties, such as a suitable band gap, high carrier mobility, strong visible light absorption and high air stability.

scholarly journals MXenes for Solar Cells

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Lujie Yin ◽  
Yingtao Li ◽  
Xincheng Yao ◽  
Yanzhou Wang ◽  
Lin Jia ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carrier Mobility ◽  
Deep Understanding ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Two Dimensional ◽  
High Carrier Mobility ◽  
High Carrier ◽  
Superior Mechanical Property ◽  
New Situation

AbstractApplication of two-dimensional MXene materials in photovoltaics has attracted increasing attention since the first report in 2018 due to their metallic electrical conductivity, high carrier mobility, excellent transparency, tunable work function and superior mechanical property. In this review, all developments and applications of the Ti3C2Tx MXene (here, it is noteworthy that there are still no reports on other MXenes’ application in photovoltaics by far) as additive, electrode and hole/electron transport layer in solar cells are detailedly summarized, and meanwhile, the problems existing in the related studies are also discussed. In view of these problems, some suggestions are given for pushing exploration of the MXenes’ application in solar cells. It is believed that this review can provide a comprehensive and deep understanding into the research status and, moreover, helps widen a new situation for the study of MXenes in photovoltaics.

scholarly journals Computational Designing of Low Energy Gap Small Molecule Acceptors for Organic Solar Cells

2018 ◽  
Vol 61 (4) ◽  
Author(s):  
Ahmad Irfan ◽  
Asif Mahmood
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Band Gap ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Energy Gap ◽  
Energy Levels ◽  
Low Energy ◽  
Homo Lumo

In this study, effort is done to design a series of narrowband-gap small molecule acceptors for organic solar cells. We have predicated the electronic and optical properties using theoretical methods. Results show that the orbital spatial distribution, HOMO/LUMO energy levels, band gap and optical properties can be systematically changedby modification of terminal acceptor units and conjugated system. Most of the acceptors show low energy gaps reveal thermodynamical more stability. Conjugated system help to tune the electronic properties and decrease the band gap of small molecules. Finally, we have identified potential terminal acceptor groups for proficient organic solar cell materials.

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