TTA as a potential hole transport layer for application in conventional polymer solar cells

Liu, Le; Zhou, Saisai; Zhao, Chengjie; Jiu, Tonggang; Bi, Fuzhen; Jian, Hongmei; Zhao, Min; Zhang, Guodong; Wang, Lejia; Li, Fenfen; Xiao, Xunwen

doi:10.1016/j.jechem.2019.07.005

Cited by 11 publications

(7 citation statements)

References 35 publications

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“…A 3,6,11,14-Tetramethoxyphenylamine-dibenzo[g,p]chrysene (MeOPhN-DBC) layer was incorporated between MoO 3 and active-layer P3HT:PC 61 BM-inverted OSCs, showing an enhanced PCE of 3.68%, attributed to improved J sc and FF, and reduced leakage current [ 376 ]. Liu et al reported a tetrathiafulvalene derivative with four carboxyl groups (TTA) as an HTL in OSCs (see Figure 20 a) [ 377 ]. This HTL displayed a well-matched energy level (see Figure 20 b) and an enhanced PCE of 9.09% in comparison with a PEDOT:PSS-based OSC (see Figure 20 c).…”

Section: Hole-transporting Materials As Htls In Oscsmentioning

confidence: 99%

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Recent Advances in Hole-Transporting Layers for Organic Solar Cells

et al. 2022

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Global energy demand is increasing; thus, emerging renewable energy sources, such as organic solar cells (OSCs), are fundamental to mitigate the negative effects of fuel consumption. Within OSC’s advancements, the development of efficient and stable interface materials is essential to achieve high performance, long-term stability, low costs, and broader applicability. Inorganic and nanocarbon-based materials show a suitable work function, tunable optical/electronic properties, stability to the presence of moisture, and facile solution processing, while organic conducting polymers and small molecules have some advantages such as fast and low-cost production, solution process, low energy payback time, light weight, and less adverse environmental impact, making them attractive as hole transporting layers (HTLs) for OSCs. This review looked at the recent progress in metal oxides, metal sulfides, nanocarbon materials, conducting polymers, and small organic molecules as HTLs in OSCs over the past five years. The endeavors in research and technology have optimized the preparation and deposition methods of HTLs. Strategies of doping, composite/hybrid formation, and modifications have also tuned the optical/electrical properties of these materials as HTLs to obtain efficient and stable OSCs. We highlighted the impact of structure, composition, and processing conditions of inorganic and organic materials as HTLs in conventional and inverted OSCs.

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Section: Hole-transporting Materials As Htls In Oscsmentioning

confidence: 99%

“… ( a ) Illustration of OSCs structure based on TTA, ( b ) energy level diagram of different layers, and ( c ) J-V curves of devices with TTA and PEDOT:PSS as HTLs. Adapted with permission from [ 377 ]. Copyright 2020, Elsevier.…”

Section: Figures Schemes and Tablesmentioning

confidence: 99%

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

et al. 2022

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“…21 Tetrabenzoic acid 1o also found application as a hole-transport layer in conventional polymer solar cells. 22 TTFTB-based MOFs are now one of most important classes of redox-active MOFs.…”

Section: Short Review Synthesismentioning

confidence: 99%

Catalytic C–H Arylation of Tetrathiafulvalenes for the Synthesis of Functional Materials

2020

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Sulfur-containing functional π-conjugated cores play key roles in materials science, mostly due to their unique electrochemical and photophysical properties. Among these, the excellent electron donor tetrathiafulvalene (TTF) has occupied a central position since the emergence of organic electronics. Peripheral C–H modification of this highly useful sulfur-containing motif has resulted in the efficient creation of new molecules that expand the applications of TTFs. This Short Review begins with the development of the palladium-catalyzed direct C–H arylation of TTF. Subsequently, it summarizes the applications of this efficient C–H transformation for the straightforward synthesis of useful TTF derivatives that are employed in a variety of research fields, demonstrating that the development of a new reaction can have a significant impact on chemical science.1 Introduction2 Development of the Palladium-Catalyzed Direct C–H Arylation of TTF3 Synthesis of TTF-Based Tetrabenzoic Acid and Tetrapyridine for MOFs4 Synthesis of TTF-Based Tetrabenzaldehyde and Tetraaniline for COFs5 Tetraarylation of TTFAQ6 Synthesis of Multistage-Redox TTF Derivatives7 Miscellaneous Examples8 Conclusions

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“…Solution-processed OSCs use a bulk heterojunction (BHJ) design of the solar absorber layer, which consists of a mixture of at least acceptor (A) and donor (D) polymer molecules. − Buckminsterfullerene (C 60 ) molecule derivatives, such as PC 60 BM and PC 70 BM, are often used as an electron acceptors in thin-film organic solar cells (TFOSCs), whose success has been mainly hindered by their narrow optical absorption band and low tunable energy band structure. Thus, fullerene-based OSCs suffered from high energy loss and low external quantum efficiency (EQE) compared to other solar cell technologies. − However, in recent years, the small-molecule non-fullerene acceptor (NFA)-based thin-film organic solar cell (TFOSC) made rapid progress in attaining a high power conversion efficiency (PCE) value, as depicted in Figure . It is evident that the PCE of TFOSCs has become more and more competitive in terms of solar energy conversion compared to other solar cell technologies.…”

Section: Introductionmentioning

confidence: 99%

Engineering Non-fullerene Acceptors as a Mechanism to Control Film Morphology and Energy Loss in Organic Solar Cells

et al. 2022

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Solution processable thin-film organic solar cells (TFOSCs) have attracted a lot of research attention in the past few decades, in the search for low-cost, flexible, and portable solar panels. In light of this, tremendous progress has been made in terms of improving materials design, device architecture, and ease of device fabrication processes. The choice of the donor and acceptor materials in the preparation of a polymer blend bulk heterojunction (BHJ) solar absorber medium is of great importance to the overall performance of organic solar cells (OSCs). The limitation in tuning the energy band structures of fullerene molecules poses significant challenges to the progress in BHJ organic solar cells. In an attempt to cater to the challenges, small-molecule non-fullerene acceptors (NFAs) came into the OSC research space with the possibility of altering the optoelectronic properties of the polymer molecules that bring OSCs closer to the realization of full-scale commercialization. This review discusses the role of NFAs in improving film morphology and reducing energy loss in TFOSCs. The recent development in engineering non-fullerene acceptors for solar energy conversion is presented and discussed in terms of reducing energy loss, improving solar cell performances.

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TTA as a potential hole transport layer for application in conventional polymer solar cells

Cited by 11 publications

References 35 publications

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

Catalytic C–H Arylation of Tetrathiafulvalenes for the Synthesis of Functional Materials

Engineering Non-fullerene Acceptors as a Mechanism to Control Film Morphology and Energy Loss in Organic Solar Cells

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