Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160135 - 160135
Published: Feb. 1, 2025
Language: Английский
Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 145958 - 145958
Published: Sept. 9, 2023
Language: Английский
Citations
23
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(29)
Published: May 4, 2024
Film formation kinetics significantly impact molecular processability and power conversion efficiency (PCE) of organic solar cells. Here, two ternary random copolymerization polymers are reported, D18─N-p D18─N-m, to modulate the aggregation ability D18 by introducing trifluoromethyl-substituted pyridine unit at para- meta-positions, respectively. The introduction reduces material adjusts interactions with acceptor L8-BO, thereby leading largely changed film earlier phase separation longer times, which enlarge fiber sizes in blend films improve carrier generation transport. As a result, moderate delivers high PCE 18.82% is further improved 19.45% via interface engineering. Despite slightly inferior small area device performances, D18─N-m shows solubility, inspires adjust ratio meta-trifluoromethyl carefully obtain polymer donor D18─N-m-10 good solubility nonhalogenated solvent o-xylene. High PCEs 13.07% 12.43% 1 cm
Language: Английский
Citations
13
Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(7), P. 2598 - 2609
Published: Jan. 1, 2024
This work explores a new solid additive with TADF properties for high-performance OPVs. The fine-tunes the morphology and enhances exciton diffusion dissociation, resulting in an efficiency of 19.4%, making it one top binary
Language: Английский
Citations
11
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(44)
Published: May 19, 2024
Abstract Low cost and high performance are key elements for the industrialization of organic solar cells (OSCs). In view this, developing highly‐efficient photovoltaic molecules with simple chemical structure is one most effective countermeasures. Herein, three simple‐structure terpolymers PTQ12‐5, PTQ12‐10, PTQ12‐15 designed synthesized, by embedding difluoro‐substituted bithiophene (2T‐2F) unit into backbone low‐cost high‐efficiency polymer PTQ10. The synthesis contains only two‐step synthetic routes over 85% yields from cheap raw compounds, thus exhibiting distinctly characteristic. Remarkably, PTQ12‐5 shows significantly higher absorbance coefficient hole mobility than Consequently, PTQ12‐5‐based OSCs more efficient exciton dissociation charge transfer, suppressed carrier recombination, tighter molecular π‐π stacking, faster balanced transport, demonstrates a improved efficiency 18.77% that PTQ10‐based device (18.03%). Moreover, an outstanding 19.36% achieved in ternary further modulating energy level alignment blending features photoactive molecules, which highest based on polymers to date. This work has significant implications guiding design high‐performance materials.
Language: Английский
Citations
10
Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
This review describes the design considerations, bonding modes between monomers, structural modification strategies, and applications of polymer semiconductors with excellent electron transport performances.
Language: Английский
Citations
1
Chemistry of Materials, Journal Year: 2023, Volume and Issue: 35(24), P. 10277 - 10294
Published: Dec. 11, 2023
The development of novel organic semiconductors has continuously promoted the field optoelectronics. During past decade, boron- and nitrogen-embedded (BN-embedded) polycyclic arenes have attracted considerable attention, enriching structural diversity providing a broad space for tuning their optoelectronic properties. application BN-embedded conjugated materials in different devices achieved excellent performance, e.g., high charge-carrier mobilities (μ > 1.0 cm2 V–1 s–1) field-effect transistors (OFETs), ultrapure electroluminescence (full-width at half-maximum ≤ 18 nm) light-emitting diodes (OLEDs), power conversion efficiency (PCE 19%) photovoltaics (OPVs). These advances make promising class high-performance semiconductors. Nevertheless, inherent relationship between BN-doping modes properties never been systematically discussed. In this Perspective, we aim to present an overview unique family by selecting representative examples. We will first outline characters modes, discuss effect on electronic structures arenes, finally showcase advanced applications emerging devices. hope bring together communities further promote semiconductor materials.
Language: Английский
Citations
17
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 14, 2024
Developing organic solar cells (OSCs) processable with halogen-free, non-aromatic solvents is crucial for practical applications, yet challenging due to the limited solubility of most photoactive materials. This study introduces high-performance terpolymers in tetrahydrofuran (THF) by incorporating dithienophthalimide (DPI) into PM6 backbone. DPI extends absorption band, lowers HOMO levels, and improves THF film crystallinity through its large dipole moment effect. Optimal PBD-10:L8-BO devices processed achieved a competitive power conversion efficiency (PCE) 18.79%, approaching chloroform-processed (19.04%). By introducing PBTz-F as second donor, ternary OSCs reached an impressive 19.45% PCE when THF. improvement stems from enhanced photon generation, improved morphology, better charge transport, longer exciton lifetimes, efficient dissociation collection, suppressed recombination. These PCEs 18.79% binary blend OSCs, respectively, represent highest reported efficiencies solvents. work demonstrates significant progress eco-friendly OSC fabrication, paving way more sustainable commercially viable photovoltaic technologies.
Language: Английский
Citations
8
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 490, P. 151920 - 151920
Published: May 5, 2024
Language: Английский
Citations
6
Advanced Materials, Journal Year: 2023, Volume and Issue: unknown
Published: Dec. 4, 2023
The evolution of organic semiconductors for photovoltaics (OPVs) has resulted in unforeseen outcomes. This provided substitute choices photoactive layer materials, which effectively convert sunlight into electricity. Recently developed OPV materials have narrowed down the gaps efficiency, stability, and cost devices. Records now show power conversion efficiency single-junction devices closing to 20%. Despite this, there is still a gap between currently those that meet requirements practical applications, especially solution processability issue widely concerned field OPVs. Based on general rule structure determines properties, methodologies enhance are reviewed explored from perspective material design views further development processable presented. Considering current dilemma existing evaluation indicators cannot reflect industrial more complete set key performance proposed their considerations. purpose this raise awareness boundary conditions exist manufacturing provide guidance academic research aspires contribute technological advancements.
Language: Английский
Citations
14
Chinese Journal of Polymer Science, Journal Year: 2023, Volume and Issue: 42(3), P. 311 - 321
Published: Nov. 2, 2023
Language: Английский
Citations
12