Understanding charge carrier dynamics in organic photocatalysts for hydrogen evolution

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(21), P. 7999 - 8018

Published: Jan. 1, 2024

This review surveyed the charge behavior in organic photocatalysis, and elucidated a correlation between molecular structure, dynamics photocatalytic performance.

Language: Английский

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Trifluorophenyl Side Chain Engineering in Benzotriazole‐Core Acceptors for High‐Performance Organic Photovoltaics

Energy & environment materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

In this study, we explore an innovative approach to enhancing the photovoltaic performance of organic solar cells through core fluorination non‐fullerene acceptor. We developed a benzotriazole‐based acceptor with trifluorinated phenyl side chain, referred as YNPF3, which has significant impact on molecular properties, including surprisingly varied local dipole moment and crystalline nature, well effectively stabilizing frontier orbital energy levels. Furthermore, trifluoro‐phenyl‐based exhibits enhanced absorptivity, restricted voltage loss, favorable photoactive morphology compared its methyl chain counterpart Consequently, binary cell based YNPF3 achieves outstanding power conversion efficiency 19.2%, surpassing control device 16.5%. Finally, YNPF3‐based presents impressive 16.6% in mini‐module aperture size 12.5 cm 2 , marking highest reported for series‐connected area over 10 .

Language: Английский

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Device Performance of Emerging Photovoltaic Materials (Version 5)

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

Abstract This 5th annual “ Emerging PV Report” highlights the latest advancements in performance of emerging photovoltaic (e‐PV) devices across various e‐PV research areas, as documented peer‐reviewed articles published since August 2023. Updated graphs, tables, and analyses are provided, showcasing several key parameters, including power conversion efficiency, open‐circuit voltage, short‐circuit current, fill factor, light utilization stability test energy yield. These parameters presented functions bandgap average visible transmittance for each technology application contextualized using benchmarks such detailed balance efficiency limit.

Language: Английский

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Recent progress in device engineering for semitransparent organic photovoltaics

Science China Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Language: Английский

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Stability of Organic Photovoltaics: From Root Causes to Advanced Analytical Techniques

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

Published: May 10, 2025

Abstract The primary challenge in the commercialization of organic photovoltaics (OPVs) is ensuring long‐term stability, making study their degradation mechanisms essential. This centered on underlying degradation, providing a systematic and in‐depth analysis instability factors. A clear distinction between burn‐in loss established, with comprehensive examination governing each process. review highlights how pathways vary depending external environmental factors specific device layers, while also identifying key indicators for mitigating instability. Furthermore, this work extensively discusses analytical tools employed stability research, offering structured overview methodologies, obtained results, practical implications. Advanced high potential future applications are introduced, along principles prospective contributions to analysis. By integrating mechanistic perspective an exploration techniques, provides framework understanding OPV offers valuable insights into development effective stabilization strategies.

Language: Английский

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A Novel Ultra‐Thin and Smooth Sm:Ag Composite Electrode with High Visible Transmittance Enables Efficient Color‐Neutral Semitransparent Organic Solar Cells

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 29, 2024

Abstract Transparent top electrodes are crucial for enhancing the performance of semitransparent organic solar cells (ST‐OSCs). The commonly evaporated ultra‐thin silver (Ag) electrode in ST‐OSCs suffers from limited transparency and conductivity due to its island‐like growth, posing a challenge achieving desired low optical loss. Here, novel composite film is prepared by doping small amount samarium (Sm) into Ag during evaporation. incorporation Sm facilitates form continuous suppressing isolated island growth. A 15 nm Sm:Ag with an optimized mass ratio 1:30 exhibits sheet resistance 6 Ω □ −1 average visible transmittance (AVT) 66%, much better than 20 43% pure analogue. By employing coupling layer, demonstrate power conversion efficiency 10.89% AVT 37.1%, resulting light utilization 4.04%. Moreover, resultant superior color neutrality rendering index 91.9, representing one highest values among LUE exceeding 4% reported date. This work provides transparent ST‐OSCs.

Language: Английский

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Recent advances in the synergistic effects of organic conjugated materials and quantum dots on solar cells

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Quantum dot solar cells (QDSCs) have excellent optoelectronic properties but face challenges in performance and stability. This review highlights advances organic conjugated materials to improve QDSC outlines key design principles.

Language: Английский

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