Organosilica Nanodots Doped ZnO Cathode Interface Layer for Highly Efficient and Stable Inverted Polymer Solar Cells DOI

Luchan Huang,

Zhuangzhuang Chen,

Wenwen Chen

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 29, 2024

Interfacial engineering is essential to achieve optical efficiencies and facilitate the industrialization of organic solar cells (OSCs). By doping organosilica nanodots (OSiNDs) into zinc oxide (ZnO), we have developed a hybrid ZnO/OSiNDs (4 wt %) cathode interface layer (CIL) that significantly enhances overall performance inverted (i-OSCs). In PM6/BTP-eC9 active system, i-OSC devices with CIL exhibit superior power conversion efficiency (PCE) 17.49%, surpassing reference pure ZnO (15.88%). The OSiNDs not only modulate work function ZnO, thereby facilitating carrier transport between layer, but also enhance device stability. After exposure 1200 min 100 mW/cm

Language: Английский

Design and virtual screening of donor and non-fullerene acceptor for organic solar cells using long short-term memory model DOI

Long-Fei Lv,

Cai‐Rong Zhang, Rui Cao

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(35), P. 23859 - 23871

Published: Jan. 1, 2024

In this study, we trained long short-term memory models to predict photovoltaic performance parameters. Additionally, cleaved and reorganized molecules obtain novel high-performance donor–acceptor pairs.

Language: Английский

Citations

5
Fluorine/bromine/selenium multi-heteroatoms substituted dual-asymmetric electron acceptors for o-xylene processed organic solar cells with 19.12% efficiency DOI Creative Commons
Yibo Zhou,

Guangyu Qi,

Han Liu

et al.

Science China Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 15, 2024

Abstract The development of high-performance near-infrared (NIR) absorbing electron acceptors is a major challenge in achieving high short-circuit current density ( J SC ) to increase power conversion efficiency (PCE) organic solar cells (OSCs). Herein, three new multi-heteroatomized Y-series (bi-asy-Y-Br, bi-asy-Y-FBr, and bi-asy-Y-FBrF) were developed by combining dual-asymmetric selenium-fused core brominated end-groups with different numbers fluorine substitutions. With gradually increasing fluorination, exhibit red-shift absorption. Among them, bi-asy-Y-FBrF presents planar molecular geometry, the maximum average electrostatic potential, minimum dipole moment, which are conducive intramolecular packing charge transport. Moreover, D18:bi-asy-Y-FBrF active layer higher crystallinity, more suitable phase separation, reduced recombination compared D18:bi-asy-Y-Br D18:bi-asy-Y-FBr blends. Consequently, among theses binary OSCs, device achieves PCE 15.74% an enhanced 26.28 mA cm −2 , while obtains moderate 15.04% highest open-circuit voltage V OC 0.926 V. Inspired its complementary absorption NIR-absorbing BTP-eC9 as acceptor, bi-asy-Y-Br introduced into D18:BTP-eC9 construct ternary further boosted 19.12%, top values for reported green solvent processed OSCs.

Language: Английский

Citations

3
Conjugated π-Extension of Small Molecular Nonfullerene Acceptor for Efficient Ternary Organic Solar Cells with an Efficiency of 19.10% DOI
Cheng Luo, Dongdong Xia,

Jie Wu

et al.

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

In this study, we have successfully incorporated a small molecular acceptor, Y-LC, with conjugated π-extension as secondary acceptor in the PM6:BTP-eC9-based organic photovoltaics. The performance of device was significantly promoted from 18.45% binary system PM6:BTP-eC9 to over 19% ternary minimal Y-LC loading. This enhancement can be attributed alloy-like structures acceptors and optimized active layer morphology, which leads improved hole electron mobilities, thereby suppressing charge recombination, finally resulting higher photocurrent solar cells. Furthermore, complementary absorption is observed PM6 BTP-eC9, broaden spectrum photoactive enable more photons sunlight absorbed. Additionally, facilitates efficient transfer donor by forming cascade energy levels between BTP-eC9. These advantages collectively contribute superior obtained work also highlights that adoption nonfullerene suitable π-extensions minor additive photovoltaics powerful approach for achieving state-of-the-art

Language: Английский

Citations

0
Indacenodithiophene‐Based Medium‐Bandgap Guest Acceptor Enables High‐Efficiency Ternary Organic Solar Cells DOI Open Access
Nailiang Qiu, Chunyan Liu, Tengteng Zhang

et al.

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

The ternary organic solar cells (OSCs) have been proven to be an effective strategy for achieving high power conversion efficiency (PCE), exhibiting substantial potential continuous enhancement of device performance. In this work, a novel nonfullerene acceptor, IDT-FN, is developed utilizing renowned indacenodithiophene (IDT) core and moderately intense electron-withdrawing terminal groups, serving as the third component in OSCs. IDT-FN demonstrates excellent complementary light absorption cascaded energy levels with host materials D18 CH-6F, resulting enhanced photon harvesting charge transport within blend. Therefore, even as-cast manages surpass optimal binary device, superior PCE 17.34% compared latter's 17.08%. Through optimization, devices attain impressive 18.32%, accompanied by open-circuit voltage (Voc) 0.897 V, fill factor 0.745, short-circuit current density (Jsc) 27.41 mA cm-2. This significant success IDT-based medium-bandgap guests achieve state-of-the-art

Language: Английский

Citations

0
Asymmetric Alkyl Chain Engineering of Non-fullerene Acceptors for Efficient Organic Solar Cells DOI

Cong Zhen Qiao,

Qian Xie, Jie Fang

et al.

Chinese Journal of Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: May 8, 2025

Language: Английский

Citations

0
Modulating Aggregation Behavior by Ternary Strategies for Efficient and Stable Thick‐Film Organic Solar Cells DOI
Jie Xu, Lei Wang, Seonghun Jeong

et al.

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

Published: Oct. 12, 2024

Abstract Functional third components targeted to improve a specific property of organic solar cells is an effective strategy. However, introducing component simultaneously efficiency and stability achieve good performance in thick‐film devices has rarely been reported. Herein, low diffusion IDCN ID2CN are reported power conversion (PCE) 18.08% high short‐circuit current ( J SC ) 27.82 mA cm −2 , one the highest values based on PM6:Y6. They increase light harvesting range 400–500 nm while enhancing energy transfer via Förster resonance (FRET). A tightly ordered molecular arrangement achieved by modulating preaggregation film formation kinetics Y6, which enhance exciton dissociation charge transport. Moreover, low‐diffusion can effectively restrict Y6 morphology stability, T 90 lifetime increased from 689 1545 h. In 300 devices, PM6:ID2CN:Y6 achieves PCE 15.01%, much higher than PM6:Y6's 12.83%, demonstrating great potential devices.

Language: Английский

Citations

3
Endgroup engineering of the third component for high-efficiency ternary organic solar cells DOI

Chanyin Cao,

Xueqing Ma,

Xinming Zheng

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156906 - 156906

Published: Oct. 1, 2024

Language: Английский

Citations

2
Conjugated Group Tuning of Self‐Assembled Monolayer for Efficient Hole‐Transport Layer in Organic Solar Cells DOI

Shuangjiao Gao,

Ruixiang Peng,

Yi Qiu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 12, 2024

Abstract P‐type carbazole‐derived self‐assembled monolayers (SAMs) have garnered significant attention as promising hole transport layers (HTLs) in the development of highly efficient organic solar cells (OSCs). However, it still lacks effective navigation to modulate terminal functional groups SAMs achieve a compromise between highest occupied molecular orbital (HOMO) energy levels and self‐aggregation behavior. Herein, are adjusted three synthesized, namely, t‐Bu‐3PACz, Ph‐3PACz, Bz‐3PACz comprehensively investigate their intrinsic properties influence on photovoltaic performance. Among them, Ph‐3PACz featuring an exceptionally suitable conjugated region steric hindrance exhibits best compatibility with active layer, superior electrical conductivity, HOMO level aligning polymer donor, ordered film packing. As result, devices based exhibit open‐circuit voltage ( V OC ) 0.850 V, short‐circuit current density J SC 28.7 mA cm −2, fill factor (FF) 78.5%, thus resulting remarkable power conversion efficiency (PCE) 19.2%. This work provides easily navigable method packing SAMs, thereby achieving OSCs.

Language: Английский

Citations

2
Solid additive modulates acceptor crystallization to achieve 19.11% efficiency and high storage stability in organic solar cells DOI

Luye Cao,

Hengyuan Zhang,

Jingwen Du

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

Citations

1
A Low‐Cost 3D Spirobifluorene‐Based Acceptor for High‐Performance Ternary Organic Solar Cells DOI
Chunyan Liu, Nailiang Qiu, Haonan Liu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 2, 2024

Abstract The advantages of 3D materials as guest components ternary organic solar cells (TOSCs) are being realized, showing great potential in improving device performance. However, the correlation between their distinctive structure and performance remains largely unexplored. Herein, a acceptor named SF‐HR is cost‐effectively synthesized utilizing twisted spirofluorene core. shows an edge‐on oriented packing but not disordered aggregation other molecules. When introduced into D18:Y6 binary system, can induce more predominant face‐on finer domain size blend, which facilitates exciton dissociation multi‐direction charge transport. Besides, exhibits complementary absorption cascaded energy levels with D18 Y6, contributing to improvement short‐circuit current density ( J sc ) open‐circuit voltage V oc ), respectively. Accordingly, optimized achieves higher 0.893 V, 27.13 mA cm −2 , fill factor (FF) 77.8%, respectively, than that host device, yielding excellent efficiency 18.85%. This success demonstrates utilization crystalline material component represents promising strategy for achieving state‐of‐the‐art OSCs, conducive understanding relationship from new perspective.

Language: Английский

Citations

0