scholarly journals Molecular design revitalizes the low-cost PTV-polymer for highly efficient organic solar cells

2021 ◽  
Author(s):  
Junzhen Ren ◽  
Pengqing Bi ◽  
Jianqi Zhang ◽  
Jiao Liu ◽  
Jingwen Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Molecular Design ◽  
Raw Materials ◽  
Low Cost ◽  
Stable Conformation ◽  
Chemical Structures ◽  
Aggregation Effect ◽  
Industrialization Process

Abstract Developing photovoltaic materials with simple chemical structures and easy synthesis still remains a major challenge in the industrialization process of organic solar cells (OSCs). Herein, an ester substituted poly(thiophene vinylene) derivative, PTVT-T, was designed and synthesized in very few steps by adopting commercially available raw materials. The ester groups on the thiophene units enable PTVT-T to have a planar and stable conformation. Moreover, PTVT-T presents a wide absorption band and strong aggregation effect in solution, which are the key characteristics needed to realize high performance in non-fullerene-acceptor (NFA)-based OSCs. We then prepared OSCs by blending PTVT-T with three representative fullerene- and NF-based acceptors, PC71BM, IT-4F and BTP-eC9. It was found that PTVT-T can work well with all the acceptors, showing great potential to match new emerging NFAs. Particularly, a remarkable power conversion efficiency of 16.20% is achieved in a PTVT-T:BTP-eC9-based device, which is the highest value among the counterparts based on PTV derivatives. This work demonstrates that PTVT-T shows great potential for the future commercialization of OSCs.

scholarly journals Synthesis and Theoretical Investigation Using DFT of 2,3-Diphenylquinoxaline Derivatives for Electronic and Photovoltaic Effects

2021 ◽  
Author(s):  
Dorota Zając ◽  
Dariusz Przybylski ◽  
Jadwiga Sołoducho
Keyword(s):  
Solar Cells ◽  
Acrylic Acid ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Low Cost ◽  
Design Synthesis ◽  
Semiconducting Properties ◽  
Homo Lumo

AbstractDeveloping effective and low‐cost organic semiconductors is an opportunity for the development of organic solar cells (OPV). Herein, we report the molecular design, synthesis and characterization of two molecules with D–A–D–A configuration: 2-cyano-3-(5-(8-(3,4-ethylenodioxythiophen-5-yl)-2,3-diphenylquinoxalin-5-yl)thiophen-2-yl)acrylic acid (6) and 2-cyano-3-(5-(2,3-diphenyl-8-(thiophen-2-yl)quinoxalin-5-yl)thiophen-2-yl)acrylic acid (7). Moreover, we investigated the structural, theoretical and optical properties. The distribution of HOMO/LUMO orbitals and the values of the ionization potential indicate good semiconducting properties of the compounds and that they can be a bipolar material. Also, the optical study show good absorption in visible light (λabs 380–550 nm). We investigate the theoretical optoelectronic properties of obtained compounds as potential materials for solar cells.

Molecular design with silicon core: toward commercially available hole transport materials for high-performance planar p–i–n perovskite solar cells

2018 ◽  
Vol 6 (2) ◽  
pp. 404-413 ◽  
Author(s):  
Rongming Xue ◽  
Moyao Zhang ◽  
Guiying Xu ◽  
Jingwen Zhang ◽  
Weijie Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Molecular Design ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Hole Transport

We synthesized a low-cost silicon containing HTL materials, achieving an excellent PCE of 19.06% for planar p–i–n perovskite solar cells.

Improving the Performance of Organic Solar Cells by Side Chain Engineering of Fused Ring Electron Acceptors

2021 ◽  
Author(s):  
Ya-Nan Chen ◽  
Rui Zheng ◽  
Jing Wang ◽  
Hang Wang ◽  
Miao Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Molecular Design ◽  
Electron Acceptors ◽  
Side Chain ◽  
Design Strategies ◽  
Fused Ring ◽  
Photoactive Materials

The side chain engineering of the photoactive materials is one of the most commonly used molecular design strategies for developing high performance organic solar cells (OSCs). Herein, two alkyl (or...

Non-conjugated electrolytes as thickness-insensitive interfacial layers for high-performance organic solar cells

2021 ◽  
Author(s):  
Yufu Yu ◽  
Wuxi Tao ◽  
Linqiao Wang ◽  
Yang-Dan Tao ◽  
Zeyan Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
Organic Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Interfacial Layers

Non-conjugated electrolytes, PMDETA-DBO and PEDETA-DBO, are developed through the quaternization of diethylenetriamine derivatives with 1,8-dibromooctane, which can interestingly be deployed as low-cost, thickness-insensitive and low-temperature processable electron transporting layers (ETLs)...

Green solvent-processed organic solar cells based on a low cost polymer donor and a small molecule acceptor

2020 ◽  
Vol 8 (23) ◽  
pp. 7718-7724
Author(s):  
He Huang ◽  
Xiaojun Li ◽  
Chenkai Sun ◽  
Indunil Angunawela ◽  
Beibei Qiu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Green Solvent

High-performance OSCs were fabricated based on polymer PTQ10 as donor and HO-IDIC-2F as acceptor, using non-halogen tetrahydrofuran as processing solvent and the PCE of the as-cast OSCs reached 12.20% which is competitive with regular chloroform.

scholarly journals Natural Dyes and Their Derivatives Integrated into Organic Solar Cells

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2579 ◽  
Author(s):  
Varun Vohra
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Light Harvesting ◽  
Low Cost ◽  
Short Review ◽  
Natural Dyes ◽  
Localized Surface Plasmon ◽  
Resonance Effects ◽  
Silver Nanoprisms

Natural photosynthetic systems contain several dyes such as carotenoids or chlorophylls which are adequately arranged to produce efficient photoinduced charge separation and electron transfer. Several research groups have attempted integrating these natural dyes and photosynthetic systems into functional organic solar cells (OSCs) producing power conversion efficiencies (PCEs) up to 0.99%. The studies presented in this short review emphasize that functionalization of natural dyes can considerably improve their PCEs. For instance, chlorophyll derivatives can yield PCEs up to 2.1%, and copolymers produced with isoindigo as an electron-deficient unit generate high PCEs up to 8%, respectively, when combined with fullerene C70 based electron acceptors in the OSC active layers. An alternative approach for natural dye integration into OSC architectures is to place these light-harvesting antennas at the interface between the active layer and the charge collection layers in these low-cost photovoltaic devices. This strategy produces large PCE increases up to 35% with respect to OSCs prepared without the interlayer. When light-harvesting systems are combined with silver nanoprisms as interlayers, additional localized surface plasmon resonance effects result in high-performance OSCs that integrate natural photosynthetic systems and demonstrate a PCE over the milestone value of 10%.

Semitransparent Organic Solar Cells: From Molecular Design to Structure-Performance Relationships

2021 ◽  
Author(s):  
Ganesh D Sharma ◽  
Kanupriya Khandelwal ◽  
Amaresh Mishra ◽  
Subhayan Biswas
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Bulk Heterojunction ◽  
Low Cost ◽  
Solution Processing ◽  
Color Tunability

Organic solar cells (OSC) have drawn tremendous interest because of their potential for low-cost solution processing and color tunability. OSCs with bulk-heterojunction structures offer an attractive pathway to efficiently utilize...

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