A review of progress and challenges in the research developments on organic solar cells

Tarique, Walia Binte; Uddin, Ashraf

doi:10.1016/j.mssp.2023.107541

Cited by 30 publications

(11 citation statements)

References 215 publications

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“…In order to estimate the number of molecules per unit cell (Z), density measurements were carried out by the buoyancy method (see the SI). For compounds T-2CTPA and T-3CTPA, density values of 1.1 g/cm 3 were obtained while for the chiral compound T-2C*TPA a density of 1 g/cm 3 was measured. Considering the cell parameter (a) of the hexagonal network and assuming a π-stacking distance (c) of 3.4 Å, as 34 Nevertheless, it aligns with the value of Z = 2 found in the columnar mesophases of tris(triazolyl)triazine derivatives with six peripheral chains, 35,39 which is possible due to the low energy difference between the C 3 and asymmetric conformations of the tris(triazolyl)triazine core.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Effect of Hydrogen Bonding and Chirality in Star-Shaped Molecules with Peripheral Triphenylamines: Liquid Crystal Semiconductors and Gels

Martínez-Bueno,

Martín,

Ortega

et al. 2024

Chem. Mater.

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Organic semiconductors with well-defined architectures pose a suitable alternative to amorphous silicon-based inorganic semiconductors. Encouraged by the development of organic semiconductors based on columnar liquid crystals, herein, we report on a family of C 3 -symmetric star-shaped mesogens based on triphenylamine (TPA), a functional unit with strong electron donor character. Highly stable columnar phases with high hole mobility values were obtained out of this nonplanar functional unit, and this was achieved by using flexible amide spacers to join the TPA units to a tris(triazolyl)triazine (T) star-shaped core, allowing the formation of intermolecular hydrogen bonds. The presence of hydrogen bonds results in a stabilization of the columnar architectures either in bulk or in the presence of solvents by reinforcing π-stacking and van der Waals interactions, as deduced by Fourier-transform infrared (FTIR) and X-ray diffraction (XRD) studies. Furthermore, the introduction of a stereogenic center in the flexible spacer prompts the formation of chiral aggregates in the liquid crystal state and in the organogel formed in 1-octanol, as demonstrated by circular dichroism spectroscopy.

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Section: ■ Results and Discussionmentioning

confidence: 99%

“…Advances in optoelectronic devices, thin-film transistors (FETs), light-emitting diodes (LEDs), or solar cells depend on the availability of high-performance semiconductors. In this respect, organic materials offer design and synthetic advantages, which include low-cost production, tunability, flexibility, and energetic efficiency .…”

Section: Introductionmentioning

confidence: 99%

Effect of Hydrogen Bonding and Chirality in Star-Shaped Molecules with Peripheral Triphenylamines: Liquid Crystal Semiconductors and Gels

Martínez-Bueno,

Martín,

Ortega

et al. 2024

Chem. Mater.

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“…Stability of OSCs represents a crucial factor for commercialization. Therefore, it is necessary to clarify the factors affecting photovoltaic performance and device lifetime [77,78]. Hereupon, the efficiency is attenuated with ZnO and ZnO NP/ZnO ELTs for both (PTB7-Th:IEICO-4F and PM6:Y6) types of devices.…”

Section: Stability Measurementmentioning

confidence: 99%

Solution-Processed Bilayered ZnO Electron Transport Layer for Efficient Inverted Non-Fullerene Organic Solar Cells

Tarique,

Rahaman,

Dipta

et al. 2024

Nanomanufacturing

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Organic solar cells (OSCs) are becoming increasingly popular in the scientific community because of their many desirable properties. These features include solution processability, low weight, low cost, and the ability to process on a wide scale using roll-to-roll technology. Enhancing the efficiency of photovoltaic systems, particularly high-performance OSCs, requires study into not only material design but also interface engineering. This study demonstrated that two different types of OSCs based on the PTB7-Th:IEICO-4F and PM6:Y6 active layers use a ZnO bilayer electron transport layer (ETL). The ZnO bilayer ETL comprises a ZnO nanoparticle (ZnO NP) and a ZnO layer created from a sol-gel. The effect of incorporating ZnO NPs into the electron transport layer (ETL) was studied; in particular, the effects on the electrical, optical, and morphological properties of the initial ZnO ETL were analyzed. The ability of ZnO films to carry charges is improved by the addition of ZnO nanoparticles (NPs), which increase their conductivity. The bilayer structure had better crystallinity and a smoother film surface than the single-layer sol-gel ZnO ETL. This led to a consistent and strong interfacial connection between the photoactive layer and the electron transport layer (ETL). Therefore, inverted organic solar cells (OSCs) with PTB7-Th:IEICO-4F and PM6:Y6 as photoactive layers exhibit improved power conversion efficiency and other photovoltaic properties when using the bilayer technique.

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“…Thanks to this, electricity consumption in urban agglomerations can be significantly reduced. Solar cells using organic compounds are an extremely interesting solution that has been intensively researched recently [7,9,12,[15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. These include, among others, dye-sensitized solar cells (DSSCs) [16][17][18]25,26], perovskite solar cells (PVSs) [7,9,12,27,28], or even bulk heterojunction solar cells (BHJ) [15,19,20,29,30].…”

Section: Introductionmentioning

confidence: 99%

Dibenzofulvene Derivatives as Promising Materials for Photovoltaic and Organic Electronics

Szlapa-Kula,

Ledwon,

Krawiec

et al. 2023

Energies

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This review aimed to summarize the current knowledge regarding dibenzofulvene derivatives (DBF) investigated for photovoltaics and organic electronics applications. The work begins with a detailed analysis of the synthesis and modification methods for dibenzofulvene derivatives’ structure. Then, the physicochemical properties (thermal, electrochemical, and optical) of the selected compounds are discussed in detail. Moreover, this article also presents the DFT calculations performed so far. Finally, the review presents the latest research on the applications of dibenzofulvene derivatives as dyes for DSSC cells, hole transport materials (HTMs) for perovskite solar cells (PSCs), organic light-emitting diodes (OLEDs), and luminescent and electrochromic materials. Considering the above, this review may be helpful when designing new organic compounds for photovoltaic and organic electronic applications.

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A review of progress and challenges in the research developments on organic solar cells

Cited by 30 publications

References 215 publications

Effect of Hydrogen Bonding and Chirality in Star-Shaped Molecules with Peripheral Triphenylamines: Liquid Crystal Semiconductors and Gels

Effect of Hydrogen Bonding and Chirality in Star-Shaped Molecules with Peripheral Triphenylamines: Liquid Crystal Semiconductors and Gels

Solution-Processed Bilayered ZnO Electron Transport Layer for Efficient Inverted Non-Fullerene Organic Solar Cells

Dibenzofulvene Derivatives as Promising Materials for Photovoltaic and Organic Electronics

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