Cited by Tert-Butyl Carbazole Modified Non-Fused Ring Electron Acceptor Generating High Triplet State Energy Level for Efficient Organic Solar Cell

In‐Depth Investigation of Morphology Evolution in Highly Efficient Pseudo‐Planar Heterojunction All‐polymer Organic Photovoltaics DOI

Xingpeng Liu, Yutong Zhang,

Shaopeng Fu

et al.

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

Published: March 16, 2025

Abstract Pseudo‐planar heterojunction (PPHJ) structure using sequential deposition is an effective method for achieving high‐efficiency organic photovoltaics (OPVs). The crystallization and phase separation behavior during film‐forming process intricately related to morphology with PPHJ structure. Despite this, the relationship between these two factors remains ambiguous, thereby impeding further improvements in performance. To tackle this challenge, PM6 PY‐DT all‐polymer systems as models are utilized, combine theoretical calculations, situ spectroscopy, morphological characterization elucidate aforementioned relationship. Thermodynamically, can effectively suppress van der Waals forces, increase crystallinity of PM6, promote matching crystallinity. Kinetically, rate notably faster more sustained, facilitating development interpenetrating network enhanced Furthermore, driven by crystallization‐induced‐phase separation, characterized minimal intermixed content substantial domain size. Concurrently, layer swells a limited extent, downward diffusion PY‐DT, which promotes formation vertical Ultimately, favorable achieved optimizing process, resulting power conversion efficiency (PCE) 18.08%, highest PCEs reported binary OPVs based on date.

Language: Английский

Citations

Tert-butyl carbazole modified non-fused ring electron acceptor generating high triplet state energy level for efficient organic solar cell DOI

Dou Luo, Lifu Zhang, Jie Zeng

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 125, P. 109583 - 109583

Published: April 4, 2024

Language: Английский

Citations

Toward commercially viable non-fullerene organic solar cells: a critical review of recent developments in high-performance non-fused ring electron acceptors DOI

Elizaveta D. Papkovskaya, Dmitry O. Balakirev, Jie Min

et al.

Materials Today Energy, Journal Year: 2024, Volume and Issue: 43, P. 101591 - 101591

Published: May 5, 2024

Language: Английский

Citations

Non‐fused Star‐shape Giant Trimer Electron Acceptors for Organic Solar Cells with Efficiency over 19% DOI

Wen Zhou, Jiabin Liu,

Jiaping Xie

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 21, 2024

Abstract Organic solar cells (OSCs) based on giant molecular acceptors (GMAs) have attracted extensive attention due to their excellent power conversion efficiency (PCE) and operation stability. However, the large conjugated plane of GMAs poses great challenges in regulating solubility, over‐size aggregation yield, which turn further constrains development commercial products. Herein, we employ a non‐fused skeleton strategy develop novel star‐shape trimers (3BTT6F 3BTT6Cl) for improving device performance. Single‐bond linkage can break rigid planarity form 3D architecture, generating multidimensional charge transfer pathways. Importantly, not only significantly improve solubility synthesis but also effectively suppress excessive aggregation. Consequently, optimized film‐forming process dynamics, 3BTT6F‐based binary obtains high PCE 17.52 %, is higher than reported fully fused trimers. Excitingly, ternary even top‐level 19.26 %. Furthermore, configuration endows these with enhanced intermolecular interaction active layer, demonstrating operational Our work emphasizes potential trimers, providing new pathway achieving highly efficient stable OSCs.

Language: Английский

Citations

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

Fuli Xie,

Xiangyu Li, Zongtao Wang

et al.

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

Published: Jan. 2, 2025

Language: Английский

Citations

Small Singlet–Triplet Gap Terpolymer Donor with a Simple Pt Complex Enables Organic Solar Cells with Low Energy Loss and Over 19.2% Efficiency DOI

Dou Luo, Lifu Zhang, Lanqing Li

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

Suppressing the non-radiative loss in organic solar cells (OSCs) through molecular design remains a significant challenge. Typically, triplet state of semiconductors is lower than charge transfer (CT) state, contributing to substantial via state. Herein, set terpolymers prepared by introducing simple Pt complex block into PM6 polymer backbone. These metalated exhibit high energy (ET1) and small singlet-triplet gap (∆EST), facilitating fast intersystem crossing (ISC) process generate excitons. Consequently, show enhanced exciton lifetime diffusion length, most importantly, effectively suppress recombination terminal channels. Moreover, modifies aggregation polymer, hence optimizing morphology active blends. The PM6-Pt1:L8-BO devices achieve champion power conversion efficiency (PCE) 18.54% (certified as 18.32%), highest reported for date. PCE further increased record 19.24% PM6-Pt1:PM6:L8-BO (0.8:0.2:1.2, wt/wt/wt) ternary devices. Overall, this work provides feasible approach designing with ET1, thereby reducing OSCs.

Language: Английский

Citations

Balance Processing and Molecular Packing via Structural Disordering in a Random Terpolymer for Over 19% Efficiency Non‐Halogenated Solvent Organic Solar Cells DOI

Jingnan Wu,

Fengbo Sun,

Hua Feng

et al.

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

Published: March 4, 2025

Abstract Achieving commercial viability for organic solar cells (OSCs) requires non‐toxic, non‐halogenated solvent processing. However, poor solubility and suboptimal morphology of commonly used active layer materials have been limiting their applications high‐performance OSCs. This study introduces a novel random terpolymer, PM7‐TTz50, designed to overcome these challenges. By incorporating 50 mol% co‐planar thiophene‐thiazolothiazole (TTz) unit into the PM7 backbones, resulting terpolymer achieves enhanced in eco‐friendly solvents. Furthermore, PM7‐TTz50's strong aggregation tendency, coupled with high‐boiling‐point processing—which prolongs aggregate/crystal growth—enhances molecular stacking ordering. approach supports efficient charge transport minimizes non‐radiative recombination, yielding power conversion efficiencies (PCEs) exceeding 19% over 16% w/o additives. Additionally, PM7‐TTz50 demonstrates broad compatibility various non‐fullerene acceptors (NFAs), leading material uniformity reproducibility device fabrication.

Language: Английский

Citations

Molecular Orientation Strategy via Ternary Component Transfer Lamination for Efficient Light Energy Harvesting and Trap Reduced Signal Detection DOI

Min Soo Kim,

Jihyun Lim,

Woongsik Jang

et al.

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

Published: Feb. 25, 2025

Abstract This study highlights a reproducible thin film formation process called transfer lamination that transfers target materials using hydrophilic elastomer polymer mediator. In order to limitation of conventional spin‐coating induces unexpected disorder structure and damage the adjacent chemicals, transfer‐lamination is developed by transferring ternary active layer composed PM6 (polymer donor), EH‐IDTBR (guest acceptor), BTP‐4F‐12 (host acceptor) from mediator onto substrate. The stable with an overturned surface phase obtained via improves charge transport blocking capabilities organic photovoltaics (OPVs) photodetectors (OPDs). Optical, chemical, morphological, electrical measurements are performed compare performance transfer‐laminated devices spin‐coated ones. Further, device performances characterized in terms light energy harvesting signal detection (OPDs), results reveal can simultaneously achieve efficient (PCE 17.25%) sensing (Detectivity 4.21 × 10 13 Jones). Therefore, applying be considered promising strategy for fabricating next‐generation optoelectronic devices.

Language: Английский

Citations

Multilength‐Scale Morphological Engineering for Stable Organic Solar Cells DOI

Wenqing Zhang,

Kangning Zhang,

Xiaotao Hao

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 16, 2025

Abstract Organic solar cells (OSCs) have garnered significant attention owing to the light weight, flexibility, and low cost. Continuous improvement in molecular design, morphology control, device fabrication has propelled power conversion efficiency of OSCs beyond 20%. While obtaining long‐term stability is still a critical obstacle for commercialization OSCs. The nano‐ microstructural characteristics active layer morphology—including stacking, phase separation, domain sizes—play pivotal role determining performance. Consequently, comprehensive understanding how film structure impacting methods control are vital improving lifetime. This review seeks elucidate structure–performance relationship between from nanoscale microscale stability. It can provide rational guidance enhance accelerating

Language: Английский

Citations

Efficient non-fused electron acceptor with C-shaped molecular geometry for photovoltaic application DOI

Kaijun Yuan, Chaoyi Wang,

Lijiao Ma

et al.

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A novel non-fused acceptor, AC2, with a C-shaped geometry and 3D stacking property, was designed for organic solar cells. AC2 exhibits efficient charge transport reduced energy loss, which broadens the design prospects acceptors.

Language: Английский

Citations