Exploring the Impact of Structural Modifications of Phenothiazine-Based Novel Compounds for Organic Solar Cells: DFT Investigations

Polymers, Journal Year: 2025, Volume and Issue: 17(1), P. 115 - 115

Published: Jan. 5, 2025

This paper explores a novel group of D-π-A configurations that has been specifically created for organic solar cell applications. In these material compounds, the phenothiazine, furan, and two derivatives thienyl-fused IC act as donor, π-conjugated spacer, end-group acceptors, respectively. We assess impact substituents by introducing bromine atoms at potential substitution sites on each acceptor (EG1 EG2). With donor π-bridge held constant, we have employed density functional theory time-dependent DFT simulations to explore photophysical optoelectronic properties tailored compounds (M1–M6). demonstrated how structural modifications influence materials cells. Moreover, all proposed exhibit greater Voc exceeding 1.5 V, suitable HOMO-LUMO energy gap (2.14–2.30 eV), higher dipole moments (9.23–10.90 D). Various decisive key factors are crucial exploring compounds—frontier molecular orbitals, transition matrix, electrostatic potential, open-circuit voltage, maximum absorption, reduced gradient, charge transfer length (Dindex)—were also explored. Our analysis delivers profound insights into design principles optimizing performance applications based halogenated compounds.

Language: Английский

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Indoor organic photovoltaics for low-power internet of things devices: Recent advances, challenges, and prospects

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154944 - 154944

Published: Aug. 17, 2024

Language: Английский

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Novel Materials for Semi-Transparent Organic Solar Cells

Energies, Journal Year: 2024, Volume and Issue: 17(2), P. 333 - 333

Published: Jan. 9, 2024

The rapid development of photovoltaic technology has driven the search for novel materials that can improve cost-effectiveness and efficiency solar cells. Organic semiconductors offer unique optical tunability transparency, allowing customization absorption specific spectra like near-infrared radiation. Through molecular engineering electron donors acceptors, these be optimized targeted selectivity. This adaptability enables efficient energy-harvesting devices tailored spectral regions. Consequently, organic present a promising avenue specialized applications such as semi-transparent review offers detailed summary latest developments in semiconductor materials, focusing on design principles synthesis context Optimization architecture, performance, optoelectronic properties been explored, highlighting their potential next-generation energy conversion.

Language: Английский

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Hemispherical-shell-shaped organic photovoltaic cells for absorption enhancement and improved angular coverage

Journal of Photonics for Energy, Journal Year: 2024, Volume and Issue: 14(01)

Published: Feb. 14, 2024

A hemispherical shell shape is proposed for an organic photovoltaic cell structure, aiming at enhancing both light absorption and angular coverage. Three-dimensional finite element analysis method used to study the spectra within hemispherical-shell-shaped active layer. The reveals that structure can result in 66% 36% of improvements compared a flat-structured device when incoming transverse electric (TE)- magnetic (TM)-polarized, respectively. It also learned has improvement as high 13% (TE) 21% (TM) previously reported semicylindrical structure. coverage improved well, reaching 81 deg 82 (TM), which becomes quite useful wearable electronics applications where incidence angle vary random manner. These be attributed better coupling guiding through layer made possible by device.

Language: Английский

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Shamrock-shaped Nonfullerene Acceptors Containing Nonhalogenated End Groups for High-Voltage Organic Photovoltaics

Dyes and Pigments, Journal Year: 2025, Volume and Issue: 235, P. 112616 - 112616

Published: Jan. 2, 2025

Language: Английский

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Transforming semitransparent organic photovoltaics into catalysts for positive emotional responses

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(7)

Published: Feb. 17, 2025

Semitransparent organic photovoltaics (ST-OPVs), due to their transparency, can be integrated into building designs through (BIPVs) address the energy challenges posed by urbanization. While current BIPVs such as photovoltaic windows meet criteria for both power supply and urban esthetics, a crucial aspect remains underexplored in existing research: human experience under modulated sunlight. In this study, we conduct systematic analysis of interaction between spectrally tunable ST-OPV materials cognition emotion, proposing framework selecting user-friendly ST-OPVs. Our results reveal that predominant high-performance donor polymer negatively influence user emotions. To issue, employed spectrum shaping optical structures optimize device transmittance color rendering properties, achieve desirable emotion feedback. This groundbreaking study delves devices, playing role addressing demands urbanization paving way realization smart, sustainable, healthy cities.

Language: Английский

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Hydrogen peroxide treated tungsten oxide for solution-processed narrowband OLEDs with high external quantum efficiency over 30%

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161469 - 161469

Published: March 1, 2025

Language: Английский

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A critical review on the progress of emerging active and substrate materials for organic solar cells and device level fabrication techniques by solution process method

Next Materials, Journal Year: 2025, Volume and Issue: 8, P. 100595 - 100595

Published: March 22, 2025

Language: Английский

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Unexpected MoO₃/Al Interfacial Reaction Lowering the Performance of Organic Solar Cells upon Thermal Annealing and Methods for Suppression

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Understanding the degradation mechanism and improving thermal stability of organic solar cells are essential for this new photovoltaic technology. In work, we found that high-performance polymer suffer from significant performance decay upon annealing at 150 °C owing to fast VOC FF. We demonstrated process leads a severe chemical reaction MoO3 with Al, forming an Al2O3 barrier layer MoO3/Al interface, which lowers built-in potential (Vbi) consequently reduces charge collection efficiency. Inserting thin C60 interlayer between slows ensures high Vbi efficiency annealed MoO3/C60/Al cells. Such protection effect in device against was also confirmed different photoactive layers metal electrodes, demonstrating generality interfacial layer. Finally, inverted C60-modified anode showed almost no high-temperature hot-press encapsulation, excellent heat tolerance structure.

Language: Английский

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Stable and Efficient Semitransparent Organic Photovoltaics Enabled by Cathode Interface Engineering

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 19, 2025

Abstract Cathode interface engineering is a critical strategy for enhancing power conversion efficiency and device stability in semitransparent organic photovoltaics (STOPVs). Herein, novel approach of using trithiocyanuric acid trisodium salt (TATS) proposed to strengthen the chemical interactions between cathode interlayer (CIL) ultrathin silver (Ag) electrode. The introduction TATS not only improves conductivity CIL, but also promotes growth Ag electrodes stabilizes morphology films, thus simultaneously improving light utilization (LUE) photostability STOPVs. LUE STOPVs improved from 3.62% 3.98% after modification with TATS, further enhanced 4.30% by 35 nm molybdenum oxide as optical structure. In addition, significantly retention rate initial 53% 85%, 200 h continuous illumination. This study offers new perspective on achieving high‐efficiency through CIL strategy.

Language: Английский

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