High-efficiency organic photovoltaic cells processed using a non-halogen solvent

Yu, Yang‐Yen; Shih, Kai-Yu; Peng, Yan‐Cheng; Chiu, Yu‐Cheng; Kuo, Chi‐Ching; Yang, Chang-Chung; Chen, Chih‐Ping

doi:10.1016/j.matchemphys.2022.125971

Cited by 5 publications

(9 citation statements)

References 42 publications

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“…OPVs, which generate clean, renewable, and sustainable energy, 33,41,45,108,156‐160 have the potential to change the organic photovoltaics market, 33 as this emerging technology has numerous benefits over conventional inorganic semiconductor‐based systems 12,138 . OPVs have a short energy payback time, 33,162 they can absorb light across the solar spectrum, 64 their fabrication cost is low 35,46,92,114,136,158,16‐169 and simple, 28,92,11,73,138,160,165,170 due to the use of abundant materials, 22 can be manufactured using solution‐based processing, 62,63,72,156,165,171,17 do not require high manufacturing temperatures,…”

Section: Organic Photovoltaic Cellsmentioning

confidence: 99%

“…108,110 The PCE of OPVs, whose active layer consists of polymer and fullerene, is limited due to the low the mobility of the charge carrier relative to the short diffusion length of the exciton. 111 These limitations, along with the advantages of non-fullerene (NF) such as good solubility (essential for large-scale production), process in halogen-free (less toxic) solvents, 75,112 and good thermal stability 72,113 have stimulated research on NF acceptors, [114][115][116] leading to the rapid improvement of PCE produced by NF acceptors. 43,117 OPVs based on NF acceptors achieved PCEs of 11.54%, 118 12.1%, 119 13.1%, 120 14%, 121 and 17.3%.…”

Section: Non-fullerene Acceptorsmentioning

confidence: 99%

“…33,34 This parameter is a measure of OPV quality 9 and is therefore related to cell technology and active layer morphology. 2,33,45,133 Yu et al 112 report that optimization of the active layer morphology depends on the solubility of the donor and acceptor materials.…”

Section: Power Conversion Efficiency Open Circuit Voltage Short Circu...mentioning

confidence: 99%

“…72 Industrial production of OPVs using halogenated solvents is impractical, as this material is highly toxic to human health and harmful to the environment. 112 Thus, the commercialization of OPV cells can be further promoted, not only through the synthesis of non-fullerene acceptors, but also through the development of new non-fullerene donors, which use non-halogenated solvents. 173 All these challenges, and opportunities, are driving the scientific community to advance research in OPV.…”

Section: Challenges Opportunities and Applicationsmentioning

confidence: 99%

“…Thus, the commercial viability of OPVs depends on factors such; as the manufacturing of high efficiency modules, 10,135 installation in large areas, low production costs 110 (achieved through Roll‐to‐Roll (R2R) techniques), 13 improved thermal, 31 oxygen and water stability 23 and, consequently, extended shelf life 72 . Industrial production of OPVs using halogenated solvents is impractical, as this material is highly toxic to human health and harmful to the environment 112 . Thus, the commercialization of OPV cells can be further promoted, not only through the synthesis of non‐fullerene acceptors, but also through the development of new non‐fullerene donors, which use non‐halogenated solvents 173 .…”

Section: Organic Photovoltaic Cellsmentioning

confidence: 99%

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A review on organic photovoltaic cell

Sampaio

González

2022

Intl J of Energy Research

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Summary The objective of this article is to identify how organic photovoltaic cells have been addressed in scientific studies published until 2022. To this end, a literature review was conducted, which involved the search for articles through the Advanced Search tool of the Periodicals portal of the Coordination for the Improvement of Higher Education Personnel, as well as the preparation of a Microsoft Excel spreadsheet to assist in the classifying the articles, followed by a structured analysis of the structure, operating principle, materials, performance parameters, stability/life span/degradation, challenges, opportunities, and applications of organic photovoltaic cells. The results of this research point out that organic photovoltaic devices are formed by electrodes (anode, such as indium‐tin oxide, silver nanowires, carbon nanotubes and graphene and cathode, such as calcium, barium, or aluminum), hole transport layers (PEDOT:PSS), and electrons (ZnO or the TiO2), as well as by the active layer (donor, such as P3HT or PTB7, and acceptor, such as C60 and C70 fullerenes and their PCBM derivatives, as well as non‐fulerene acceptors). We further identify that the working principle of organic photovoltaic cells consists in the generation of photocurrent from the absorption of a photon that results in an exciton, this in turn diffuses to the donor–acceptor interface, and disassociates into free carriers, which carry collected charges to the electrodes. We find that organic photovoltaic cells are simple to manufacture, less expensive, more flexible, lightweight, and that the development of these devices has advanced in recent years. However, for practical relevance, some challenges need to be overcome, including power conversion efficiency, stability, degradation, lifetime, as well as fabrication of large areas through roll‐to‐roll methods.

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Section: Organic Photovoltaic Cellsmentioning

confidence: 99%

Section: Non-fullerene Acceptorsmentioning

confidence: 99%

Section: Power Conversion Efficiency Open Circuit Voltage Short Circu...mentioning

confidence: 99%

Section: Challenges Opportunities and Applicationsmentioning

confidence: 99%

Section: Organic Photovoltaic Cellsmentioning

confidence: 99%

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A review on organic photovoltaic cell

Sampaio

González

2022

Intl J of Energy Research

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Intrinsically Stretchable and Non‐Halogenated Solvent Processed Polymer Solar Cells Enabled by Hydrophilic Spacer‐Incorporated Polymers

Lee

Lim

Lee

et al. 2022

Advanced Energy Materials

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Blends of polymer donors (PDs) and small molecule acceptors (SMAs) have afforded highly efficient polymer solar cells (PSCs). However, most of the efficient PSCs are processed using toxic halogenated solvents, and they are mechanically fragile. Here, a new series of PDs by incorporating a hydrophilic oligo(ethylene glycol) flexible spacer (OEG‐FS) is developed, and efficient PSCs with a high power conversion efficiency (PCE) of 17.74% processed by a non‐halogenated solvent are demonstrated. Importantly, the incorporation of these OEG‐FSs into the PDs significantly increases the mechanical robustness and ductility of resulting PSCs, making them suitable for application as stretchable devices. The OEG‐FS alleviates excessive backbone rigidity of the PDs while enhancing their pre‐aggregation in the non‐halogenated solvent. In addition, the OEG‐FS in the PDs enhances PD‐SMA interfacial interactions and improves blend morphology, resulting in efficient charge generation and mechanical stress dissipation. The resulting PSCs demonstrate a superior PCE (17.74%) and high crack‐onset strain (COS = 10.50%), outperforming the PSCs without OEG (PCE = 15.64% and COS = 2.99%). Importantly, intrinsically stretchable (IS) PSCs containing the PD featuring OEG‐FS exhibit a high PCE (12.05%) and stretchability (maintaining 80% of the initial PCE after 22% strain), demonstrating their viability for wearable applications.

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