Next Materials, Journal Year: 2025, Volume and Issue: 8, P. 100595 - 100595
Published: March 22, 2025
Language: Английский
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 26, 2025
Abstract Layer‐by‐layer (LbL) organic photovoltaics (OPVs) are fabricated with polymer PM1 as donor and small molecule L8‐BO acceptor by employing sequential spin‐coating technology. The BTP‐eC9 PTAA deliberately selected for individually incorporating into layer layer, resulting in the power conversion efficiency (PCE) increased from 18.22% to 19.23%. improvement of performance is attributed synergistically short circuit current density ( J SC ) 27.78 mA cm −2 fill factor (FF) 78.23%. introduction can promote photogenerated exciton dissociation, especially excitons near anode. Meanwhile, molecular crystallinity also enhanced appropriate layer. incorporation provide hole transport channels effectively improve holes generated self‐dissociation L8‐BO, FFs 77.40% synergistic effects layers result a 19.23% PCE optimized LbL‐OPVs. This work demonstrates that there great room hierarchically optimize achieving highly efficient
Language: Английский
Citations
3
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160359 - 160359
Published: Feb. 1, 2025
Language: Английский
Citations
3
SusMat, Journal Year: 2025, Volume and Issue: unknown
Published: March 17, 2025
ABSTRACT All‐polymer solar cells (all‐PSCs) are of interest owing to their unique advantages, including remarkably improved device stability and exceptional mechanical stretchability. Over recent years, there has been a notable increase in the power conversion efficiency (PCE) all‐PSCs, largely attributed advancements morphology control active layer. Notably, domain size is paramount importance as it impacts critical factors such exciton dissociation, charge transport, collection. However, low glass transition temperature conjugated polymers, coupled with minimal change mixing entropy, often results an excessive degree phase separation. Consequently, essential comprehend evolution separation develop strategies regulate size. In this review, we elucidate key parameters that contribute enhancement present qualitative quantitative characterization techniques for Building on foundation, introduce principles regulating sizes, encompassing crystallinity, miscibility, molecular conformation from thermodynamic perspective, well film‐forming kinetics crystallization sequence kinetic perspective. Lastly, offer insights into current challenges potential future prospects all‐PSCs.
Language: Английский
Citations
3
Small, Journal Year: 2025, Volume and Issue: 21(11)
Published: Feb. 7, 2025
Abstract A series of layered all‐polymer solar cells (LA‐PSCs) with the normal or inverted structure are prepared by employing a sequential spin‐coating method PBQx‐TCl, PM1 as polymer donor, and PY‐DT acceptor. The power conversion efficiency (PCE) LA‐PSCs can be improved from 17.20% to 18.34% incorporating 30 wt.% into PBQx‐TCl layer, resulting simultaneously increased J SC 25.35 mA cm −2 , V OC 0.971 FF 74.49%. PCE improvement also achieved PBQx‐TCl:PM1 donor layers. mixed prefer form alloyed states in LA‐PSCs, which confirmed gradually s more content Meanwhile, photogenerated excitons layers dissociated at interface between PM1, especially for located near ITO electrode. exciton dissociation provide an additional channel improving utilization efficiency, positive external quantum spectral difference (∆EQE) values Over 6.6% realized using layer.
Language: Английский
Citations
2
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(19)
Published: March 10, 2024
Abstract Se‐functionalized small molecule acceptors (SMAs) exhibit unique advantages in constructing materials with near‐infrared absorption, but their photovoltaic performance lags behind that of S‐containing analogs organic solar cells (OSCs). Herein, two new Se‐containing SMAs, namely Se‐EH and Se‐EHp, are designed synthesized by regulating bifurcation site outer alkyl chain, which enables Se‐EHp to form different 3D crystal frameworks from CH1007. displays tighter π–π stacking denser packing framework smaller‐sized pore structure induced larger steric hindrance effect chain branched at 2‐position, a higher dielectric constant PM6:Se‐EH active layer can be obtained. OSCs based on achieved very high PCEs 18.58% binary 19.03% ternary devices FF approaching 80% for SMAs. A more significant adjusts the molecular crystallization favorable nanofiber interpenetrating network an appropriate domain size reduce rate sub‐ns recombination promote balanced transport carriers. This work provides references further design development highly efficient
Language: Английский
Citations
16
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(19)
Published: Jan. 11, 2024
Abstract To achieve commercial application of organic solar cells (OSCs), it is necessary to reduce material costs and improve device efficiency. This paper reports on the utilization a multifunctional building block, namely 3‐cyanoesterthiophene, which exhibits simple structure accessibility synthetic for cost‐effective high‐performance polymer donors (PDs). Meanwhile, ternary terpolymerization strategies have been studied. Two similar PDs, PBTCl0‐TCA PBTCl100‐TCA, are synthesized, devices exhibit less‐than‐satisfactory efficiency 13.21% 11.53% due mismatching energy level imperfect morphology. The two PDs with comparable structures commendable compatibility easily form alloy‐like phase in active layer, can effectively boost 14.17% retained high J SC significant improved open‐circuit voltage ( V OC ) fill factor (FF). Encouraged by blending phenomenon, donor (PBTCl50‐TCA) same ratio random designed. And over 17% binary OSCs using demonstrated. synergies incorporation cyanoester‐group terpolymer endow developed deep‐lying levels, face‐on orientation, thermodynamic miscibility prevailing nonfullerene acceptor appropriate crystallinity. findings study provide valuable insights support advancement PDs.
Language: Английский
Citations
15
Polymer, Journal Year: 2024, Volume and Issue: 299, P. 126926 - 126926
Published: March 23, 2024
Language: Английский
Citations
11
Technologies, Journal Year: 2025, Volume and Issue: 13(2), P. 71 - 71
Published: Feb. 8, 2025
The demand for efficient renewable energy solutions has spurred the development of advanced maximum power point tracking (MPPT) algorithms photovoltaic (PV) systems, especially under variable atmospheric conditions. This study proposes a dynamic MPPT controller utilizing combination Long Short-Term Memory (LSTM)-based Artificial Neural Networks (ANNs) and Fuzzy Logic Control (FLC) to optimize extraction in solar systems across diverse irradiance temperature focuses on designing implementing these two algorithms, LSTM-ANN LSTM-FLC, effectively manage inherent variability generation due fluctuating conditions, ensuring that PV system consistently operates at its optimal point. proposed controllers are evaluated compared LSTM–Proportional Integral (PI) traditional methods, including ANNs, Logic, hybrid ANN–Fuzzy. performance metrics used evaluation include efficiency, response time, stability. simulation results with real-time data demonstrate LSTM-optimized significantly outperform conventional particularly adapting sudden changes temperature.
Language: Английский
Citations
1
Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146538 - 146538
Published: Oct. 13, 2023
Language: Английский
Citations
17
Journal of Semiconductors, Journal Year: 2024, Volume and Issue: 45(5), P. 050201 - 050201
Published: May 1, 2024
Language: Английский
Citations
8