Organic Electronics, Год журнала: 2022, Номер 114, С. 106735 - 106735
Опубликована: Дек. 30, 2022
Язык: Английский
Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(10)
Опубликована: Янв. 2, 2023
Side-chain tailoring is a promising method to optimize the performance of organic solar cells (OSCs). However, asymmetric alkyl chain-based small molecular acceptors (SMAs) are still difficult afford. Herein, we adopted novel n-nonyl/undecyl substitution strategy and synthesized two A-D1 A'D2 -A double isomeric SMAs with selenophene-based central core for OSCs. Crystallographic analysis indicates that AYT9Se11-Cl forms more compact order intermolecular packing compared AYT11Se9-Cl, which contributed higher electron mobility in neat film. Moreover, PM6 : blend film shows better morphology appropriate phase separation distinct face-on orientation than AYT11Se9-Cl. The OSCs obtain superior PCE 18.12 % AYT11Se9-Cl (17.52 %), best efficiency selenium-incorporated binary BHJ Our findings elucidate chains precisely modulates crystal enhances photovoltaic selenophene-incorporated SMAs.
Язык: Английский
Процитировано
79
Energy & Environmental Science, Год журнала: 2022, Номер 16(1), С. 76 - 88
Опубликована: Дек. 3, 2022
This perspective systematically discusses strategies of optimization active layer films in the preparation organic photovoltaic (OPV) devices by green printing.
Язык: Английский
Процитировано
61
Advanced Functional Materials, Год журнала: 2023, Номер 33(18)
Опубликована: Фев. 20, 2023
Abstract Organic solar cells (OSCs) are designed based on a blend of polymer donor and small molecular acceptor whereby the thermodynamic relaxation morphology raises concerns related to operational stability. Herein, it is demonstrated that classical Y6‐based binary device can be stabilized by using its derivative ZCCF3 as third component, which with replacing thiadiazole group Y6 trifluoromethyl substituted diazepine unit. delivers not only higher glass transition temperature ( T g ) than but also have hyper‐miscibility Y6, contributing favorable diffusion‐limited Y6:ZCCF3 alloy when blended donor. Consequently, champion power conversion efficiency 18.54% achieved in optimal PM6: Y6: devices, retain their 80% initial up 360 h. This study highlights importance high component derived hyper‐miscible accepter alloys achieving highly efficient stable OSCs.
Язык: Английский
Процитировано
44
Small, Год журнала: 2023, Номер 20(8)
Опубликована: Окт. 12, 2023
Recently, the power conversion efficiency (PCE) of organic solar cells (OSCs) has increased dramatically, making a big step toward industrial application OSCs. Among numerous OSCs, benzodithiophene (BDT)-based OSCs stand out in achieving efficient PCE. Notably, single-junction using BDT-based polymers as donor materials have completed PCE over 19%, indicating dramatic potential for preparing high-performance large-scale This paper reviews recent progress based on BDT polymer (PDMs). The development is concisely summarized. Meanwhile, relationship between structure PDMs and performance further described this review. Besides, prospect single junction are also discussed.
Язык: Английский
Процитировано
27
Chemical Engineering Journal, Год журнала: 2023, Номер 475, С. 145958 - 145958
Опубликована: Сен. 9, 2023
Язык: Английский
Процитировано
25
ACS Energy Letters, Год журнала: 2023, Номер 8(5), С. 2259 - 2266
Опубликована: Апрель 17, 2023
Attempts to satisfy the vast demands for electric power in our daily lives and address depletion of existing fossil fuels have led development new energy conversion technologies. Herein, we present a different type generation, called ionovoltaic electricity generation (IEG), that results from manipulating organic–inorganic hybrid halide perovskite structures with moisture. This IEG can generate an open-circuit voltage up ∼0.5 V short-circuit current density ∼0.1 mA cm–2, which is sufficient small electronic devices. In this work utilized transformation structurally zero-dimensional perovskite, specifically MA4PbBr6·2H2O, three-dimensional MAPbBr3 presence humidity. Flexible supply devices made layers are designed fabricated harvesting human breath some other real-life conditions. opens direction field perovskites offers extremely simple method practical importance.
Язык: Английский
Процитировано
24
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Апрель 5, 2024
Abstract Although polymer solar cells (PSCs) have shown considerable power conversion efficiency (PCE) potential, their poor operational stability is a major obstacle for future commercialization. In this study, the ternary‐blend strategy based on D1–A–D1–D2‐type conjugated random terpolymers containing hydrogen–bonding sites employed to simultaneously improve device and long‐term stability. Notably, PM6‐ThEG:PM6‐ThOH:Y6‐BO system exhibits remarkable PCE of 17.2% with superior photo, thermal, mechanical stability, outperforming those binary devices PM6, PM6‐ThEG, PM6‐ThOH donors. These outstanding results are likely attributed robust molecular lock via hydrogen bonds between PM6‐ThEG terpolymers, which can induce strong intermolecular packing, dense 3D terpolymer network, optimized morphology. also correlate well computational study. A comprehensive analysis optoelectronic morphological properties as exploration underlying physical mechanisms collectively verifies effectiveness approach mixed hydrogen‐bonding moiety achieve non‐halogenated solvent‐processed PSCs exceptional
Язык: Английский
Процитировано
11
Angewandte Chemie International Edition, Год журнала: 2022, Номер 61(50)
Опубликована: Окт. 17, 2022
Side-chain engineering with heteroatoms is not only effective in tuning frontier molecular orbitals, but also possible for forming secondary bonds which can be utilized to planarize the backbone, hence, improving photon absorption as well charge-transport abilities of polymer solar-cell (PSC) materials. Herein, two types unconventional side chains, namely carboxylate and carbamate, containing various are introduced thiophene bridges high performance benzodithiophene (BDT) based donor polymers from novel PTzTz-C PTzTz-N, respectively. In these polymers, non-covalent O⋅⋅⋅S N⋅⋅⋅H interactions induce a tendency aggregation. ternary-blend PSC PTzTz-N added high-performance D18 : BTP-eC9 blend, complimentary improved thin-film morphology were observed top power conversion efficiency 18.76 %, an improvement almost 5 % over binary blends.
Язык: Английский
Процитировано
34
Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(34), С. 13311 - 13324
Опубликована: Янв. 1, 2024
Theoretical computational simulation are used to analyse the molecular stacking characteristics of PM6:BTP- x OSCs and role end group modifications.
Язык: Английский
Процитировано
7
Small, Год журнала: 2023, Номер 19(52)
Опубликована: Авг. 30, 2023
Abstract Ternary polymer solar cells(PSCs) have been identified as an effective approach to improving power conversion efficiency (PCE) of binary PSCs. However, most the third component, especially Y‐series non‐fullerene acceptors, is a fused ring acceptor which often requires rather tedious synthesis and use hazardous organostannane reagents. In this work, two nonfused acceptors IOEH‐4F IOEH‐N2F are synthesized by green synthetic route incorporated into PM6:Y6 blend. Encouragingly, IOEH‐N2F‐based ternary PSCs exhibited more efficient charge transfer, exciton separation, lower energy loss than PM6:Y6‐based And achieved impressive PCE 17.80% 18.13%, respectively, higher that based (16.18%). Notably, these values also highest PCEs for including non‐fused acceptors. Importantly, even when IOEH‐N2F:Y6 ratios increased from 0.05:1.2 0.50:1.2, (16.70%) still PSCs, indicating great potential cost saving. It believed findings will help design better optimization corresponding with cost‐saving advantage.
Язык: Английский
Процитировано
16