Interface Engineering for Highly Efficient Organic Solar Cells

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(16)

Published: March 3, 2023

Organic solar cells (OSCs) have made dramatic advancements during the past decades owing to innovative material design and device structure optimization, with power conversion efficiencies surpassing 19% 20% for single-junction tandem devices, respectively. Interface engineering, by modifying interface properties between different layers OSCs, has become a vital part promote efficiency. It is essential elucidate intrinsic working mechanism of layers, as well related physical chemical processes that manipulate performance long-term stability. In this article, advances in engineering aimed pursue high-performance OSCs are reviewed. The specific functions corresponding principles summarized first. Then, anode layer, cathode layer interconnecting devices discussed separate categories, engineering-related improvements on efficiency stability analyzed. Finally, challenges prospects associated application emphasis large-area, high-performance, low-cost manufacturing.

Language: Английский

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Improved charge transport based on donor-acceptor type solid additive with large dipole moment for efficient organic solar cells

Dyes and Pigments, Journal Year: 2024, Volume and Issue: 224, P. 111980 - 111980

Published: Jan. 24, 2024

Language: Английский

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Improving the operating performance of organic solar cells through a novel cathode interface layer

Materials Today Communications, Journal Year: 2024, Volume and Issue: 40, P. 110015 - 110015

Published: July 31, 2024

Language: Английский

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An Arginine-Doped Cathode Interlayer Enables Enhanced Efficiency in Organic Solar Cells

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

The appearance of the cathode interlayer (CIL), a transition bridge between and organic photoactive layer (OPL), provides new pathway for performance improvement solar cells (OSCs). PFN-Br is widely employed in many optoelectronic devices, including nonfullerene OSCs, to transport electrons improve charge injection at interface. However, due relatively low conductivity PFN-Br, thickness CIL prepared with usually less than 10 nm, which evidently contradicts requirements large-scale roll-to-roll manufacturing. Herein, strategy using N-α-carbobenzyloxy-d-Arginine (NA) as doping material proposed PFN-Br. homogeneous distribution NA can modify work function (WF) facilitate an interface dipole arrangement that favorable transfer, resulting binary CILs tunable WF increased conductivity. To verify this method, series devices were PBDB-T:IT-M or PM6:Y6 OPL different proportions CIL. use PFN-Br:NA (0.75:0.06, weight%) helps morphology, making it exhibit trend fiber network structure, leading higher fill factor short circuit current density. Consequently, optimal power conversion efficiency (PCE) based on from 10.5% 11.1% 15.4% 16.0%, respectively. In addition, NA-doped device exhibits better nitrogen stability after 360 h dark storage compared control. discovery these modification approaches insight into hybrid interlayers required efficient reliable OSCs.

Language: Английский

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Advancing Organic Photovoltaics: the Role of Dipole Distance and Acidity in Perylene‐Diimide Electron Transport Layers

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

Published: Feb. 16, 2025

Abstract The electronic transport layer (ETL) based on perylene‐diimide (PDI) has been widely demonstrated for efficient organic solar cells (OSCs). However, the effect of ETL materials interfacial traps and energy losses remains understudied. This study investigates effects dipole distance PDINN interface defects using three specifically designed weak acidic with varying carboxyl hydroxyl group amounts. Among these, 3,5‐dihydroxybenzoic acid (2OH), moderate pH high distance, enhanced intermolecular forces PDINN. interaction boosted π–π stacking, ohmic contact active Ag electrode. P‐2OH film exhibited a higher more uniform potential distribution, suppressing charge recombination at interface, reducing trap density to 2.12 × 10 16 cm 3 , non‐radiative loss ∆E from 0.236 0.174 eV. Consequently, decreased 0.553 0.484 meV PM6: BTP‐ec9/P‐2OH device. Notably, decent PCE 19.1% is achieved (10 nm), it impressively power conversion efficiency (PCE) 16.4% when thickness up 50 nm. work underscores importance groups in regulating minimize offers insights developing thickness‐insensitive interlayers high‐performance OSCs.

Language: Английский

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Enhanced photovoltaic performance via small-molecule isoindigo-based interfacial materials in organic solar cells

Progress in Organic Coatings, Journal Year: 2025, Volume and Issue: 205, P. 109282 - 109282

Published: April 8, 2025

Language: Английский

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Boosting the conductivity of water/alcohol processable cathode interface layer via Ti3C2 doping for efficient organic solar cells

Progress in Organic Coatings, Journal Year: 2024, Volume and Issue: 189, P. 108309 - 108309

Published: Feb. 14, 2024

Language: Английский

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Non‐Covalent Interaction Enhancement on Active/Interfacial Layers via Two‐Dimensional Vermiculite Doping for Efficient Organic Solar Cells

Small, Journal Year: 2024, Volume and Issue: 20(30)

Published: Feb. 23, 2024

Abstract Interface modification plays an important role in improving the power conversion efficiency (PCE) of organic solar cells (OSCs). However, low non‐covalent interaction between cathode interface layer (CIL) and nonfullerene acceptor (NFA) directly affects charge collection OSCs. Here, CIL NFA is enhanced by introducing 2D vermiculite (VML) poly(9,9‐bis(3′‐( N , ‐dimethyl)‐Nethylammonium‐propyl‐2,7‐fluorene)‐alt‐2,7‐(9,9‐dioctylfluorene)) dibromide (PFN‐Br) to form efficient electron transport channel. As a result, extraction from active increased, PCE OSCs based on PBDB‐T:ITIC boosted 10.87% 12.89%. In addition, strategy doping VML proven be universal different materials, for which 10.21% 11.57% PDINN 9.82% 11.27% PNDIT‐F3N. The results provide viable option designing high‐performance non‐fullerene OSCs, may promote commercialization

Language: Английский

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Application of Buffer Layer to Improve the Efficiency of Organic Solar Cells

Energy Technology, Journal Year: 2023, Volume and Issue: 12(2)

Published: Dec. 30, 2023

Organic solar cells (OSCs) are widely studied for their advantages such as simple production, low cost, good flexibility, and large‐area printing. The buffer layer between electrodes the photoactive has a significant impact on efficiency stability of OSCs. In order to lower energy barrier height at interface, provide an Ohmic contact with series resistance, increase charge collection corresponding either holes or electrons, suitable electrode materials can be chosen. selection important effect photoelectric conversion efficiency. Therefore, study characteristics certain guiding significance improvement device structure performance optimization. At present, used in OSCs mainly organic polymer materials, small molecule metal fluoride, oxides, so on. Herein, working principle introduced first. Then, properties function summarized discussed. Finally, application common is summarized, how improve described.

Language: Английский

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Machine learning approach to predict the biofuel production via biomass gasification and natural gas integrating to develop a low-carbon and environmental-friendly design: Thermodynamic-conceptual assessment

Chemosphere, Journal Year: 2023, Volume and Issue: 336, P. 138985 - 138985

Published: May 27, 2023

Language: Английский

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