Halogen-free polymer donors with regulated solution aggregation and blend morphology for efficient organic solar cells DOI

Haifen Liu,

Jinping Lin,

Zijian Zhang

et al.

Synthetic Metals, Journal Year: 2024, Volume and Issue: unknown, P. 117819 - 117819

Published: Dec. 1, 2024

Language: Английский

Benzotriazole‐Based 3D Four‐Arm Small Molecules Enable 19.1 % Efficiency for PM6 : Y6‐Based Ternary Organic Solar Cells DOI
Xiangyu Li,

Ailing Tang,

Helin Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(39)

Published: Aug. 11, 2023

A third component featuring a planar backbone structure similar to the binary host molecule has been preferred ingredient for improving photovoltaic performance of ternary organic solar cells (OSCs). In this work, we explored new avenue that introduces 3D-structured molecules as guest acceptors. Spirobifluorene (SF) is chosen core combine with three different terminal-modified (rhodanine, thiazolidinedione, and dicyano-substituted rhodanine) benzotriazole (BTA) units, affording four-arm molecules, SF-BTA1, SF-BTA2, SF-BTA3, respectively. After adding these materials classical system PM6 : Y6, resulting devices obtained ultra-high power-conversion efficiencies (PCEs) 19.1 %, 18.7 18.8 respectively, compared OSCs (PCE=17.4 %). SF-BTA1-3 can work energy donors increase charge generation via transfer. addition, transfer between also acts enhance generation. Introducing could form acceptor alloys modify molecular level inhibit self-aggregation thereby reducing loss balancing transport. Our success in 3D multi-arm shows good universality brings perspective. The further functional development make more stable efficient.

Language: Английский

Citations

101
A nonfullerene acceptor as a solid additive realizing a record efficiency of 17.74% in quasi-layered all-polymer solar cells DOI
Wenjing Xu, Miao Zhang, Zhongyuan Liu

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(7), P. 4077 - 4085

Published: Jan. 1, 2024

The nonfullerene acceptor L8-BO as solid additive was incorporated into QLA-PSCs based on PM6 and PY-IT. molecular orientation exciton diffusion length in PY-IT layer can be optimized, resulting the PCE enhanced from 16.14% to 17.74%.

Language: Английский

Citations

33
Dual Function of the Third Component in Ternary Organic Solar Cells: Broaden the Spectrum and Optimize the Morphology DOI
Jiangang Liu, Xingpeng Liu, Jingming Xin

et al.

Small, Journal Year: 2024, Volume and Issue: 20(24)

Published: Jan. 29, 2024

Abstract Ternary organic solar cells (T‐OSCs) have attracted significant attention as high‐performance devices. In recent years, T‐OSCs achieved remarkable progress with power conversion efficiency (PCE) exceeding 19%. However, the introduction of third component complicates intermolecular interaction compared to binary blend, resulting in poor controllability active layer and limiting performance improvement. To address these issues, dual‐functional components been developed that not only broaden spectral range but also optimize morphology. this review, effect on expanding absorption is first discussed. Second, extra functions are introduced, including adjusting crystallinity molecular stack layer, regulating phase separation purity, altering orientation donor or acceptor. Finally, a summary current research provided, followed by discussion future directions.

Language: Английский

Citations

33
Dual-donor organic solar cells with 19.13% efficiency through optimized active layer crystallization behavior DOI

Tianhuan Huang,

Yang Zhang, Jinjiang Wang

et al.

Nano Energy, Journal Year: 2023, Volume and Issue: 121, P. 109226 - 109226

Published: Dec. 21, 2023

Language: Английский

Citations

21
Dual Förster resonance energy transfer effects enables high photocurrent density and high fill factor in ternary organic solar cells DOI
Hongqiang Wang, Daobin Yang, Pengfei Ding

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 474, P. 145395 - 145395

Published: Aug. 14, 2023

Language: Английский

Citations

20
Synergetic optimizing quinoxaline and selenophene substitution in non-fullerene acceptors for efficient organic solar cells DOI
Tao Jing,

Kaiming Yang,

Dingding Qiu

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 125, P. 109540 - 109540

Published: March 26, 2024

Language: Английский

Citations

9
Tetracyclic aromatic lactam-substituted tin-free donors for high-efficiency ternary organic solar cells via regulation of pre-aggregation and crystallization kinetics DOI
Bin Hu, Chenyang Zhang,

Xin Wang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 150968 - 150968

Published: April 2, 2024

Language: Английский

Citations

8
Construction of Covalent organic frameworks with bex topology for efficient photocatalytic hydrogen production DOI
Lin Wang,

Changzhi Han,

Jingwen Pan

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153570 - 153570

Published: July 3, 2024

Language: Английский

Citations

7
Benzotriazole‐Based 3D Four‐Arm Small Molecules Enable 19.1 % Efficiency for PM6 : Y6‐Based Ternary Organic Solar Cells DOI
Xiangyu Li,

Ailing Tang,

Helin Wang

et al.

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 135(39)

Published: Aug. 11, 2023

Abstract A third component featuring a planar backbone structure similar to the binary host molecule has been preferred ingredient for improving photovoltaic performance of ternary organic solar cells (OSCs). In this work, we explored new avenue that introduces 3D‐structured molecules as guest acceptors. Spirobifluorene (SF) is chosen core combine with three different terminal‐modified (rhodanine, thiazolidinedione, and dicyano‐substituted rhodanine) benzotriazole (BTA) units, affording four‐arm molecules, SF‐BTA1, SF‐BTA2, SF‐BTA3, respectively. After adding these materials classical system PM6 : Y6, resulting devices obtained ultra‐high power‐conversion efficiencies (PCEs) 19.1 %, 18.7 18.8 respectively, compared OSCs (PCE=17.4 %). SF‐BTA1‐3 can work energy donors increase charge generation via transfer. addition, transfer between also acts enhance generation. Introducing could form acceptor alloys modify molecular level inhibit self‐aggregation thereby reducing loss balancing transport. Our success in 3D multi‐arm shows good universality brings perspective. The further functional development make more stable efficient.

Language: Английский

Citations

10
Progress in Non‐Fullerene Acceptors: Evolution from Small to Giant Molecules DOI
Chen Zhang, Runnan Yu,

Qianglong Lv

et al.

ChemSusChem, Journal Year: 2024, Volume and Issue: unknown

Published: July 18, 2024

Abstract With the rapid development of non‐fullerene acceptors (NFAs), power conversion efficiency (PCE) organic solar cells (OSCs) is increasing. According to their different chemical structures, NFAs can initially be divided into two categories: small molecule (SMAs) and polymerized (PSMAs). Due strong absorption capacity controllable energy levels, PCE devices based on SMAs has approached 20 %. Compared with SMAs, PSMAs have advantages in stability flexibility, PSMA‐based exceeded 18 However, higher synthesis cost lower batch repeatability hinder its further development. Recently, concept giant (GMAs) been proposed. These materials a clear molecular structure are considered novel acceptor that combine PSMAs. Currently, GMAs 19 In this review, we will introduce latest developments PSMAs, GMAs. Then, relationship between performance analyzed. end, perspectives opportunities challenges these provided, which could inspire for advanced OSCs.

Language: Английский

Citations

4