Single‐Layer Carbon Nitride as an Efficient Metal‐Free Organic Electron‐Transport Material with a Tunable Work Function DOI Creative Commons
Abdus Saboor, Oleksandr Stroyuk, Oleksandra Raievska

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(29)

Published: March 7, 2024

Abstract Single‐layer carbon nitride (SLCN) is introduced as a metal‐free organic electron transport material (ETL) for solar cells, delivering performance comparable to that of the benchmark nanocrystalline ZnO. SLCN produced in form stable aqueous inks and can serve an efficient layer three different types active layers, showing high stability photodegradation. A lower conductivity films compared ZnO counter‐balanced by their higher transparency light scattering losses. The ETL provides unique opportunity tune work function from ca. −4.1 −4.6 eV varying annealing temperature due partial thermal oxidation film. PL band position follows oxidation‐induced changes allowing properties be used predict PV efficiency. 2D structure coupled with structural compositional variability, tunability show promise emerging devices.

Language: Английский

Excitonic topology and quantum geometry in organic semiconductors DOI Creative Commons
Wojciech J. Jankowski, Joshua J. P. Thompson, Bartomeu Monserrat

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: May 19, 2025

Language: Английский

Citations

0
Interface energetics in organic and perovskite semiconductor solar cells DOI

Shaobing Xiong,

Mats Fahlman, Qinye Bao

et al.

Journal of Semiconductors, Journal Year: 2025, Volume and Issue: 46(5), P. 050301 - 050301

Published: May 1, 2025

Language: Английский

Citations

0
Achieving efficient flexible and large-area organic solar cells via additive-assisted fluorous solvent soaking DOI
Tong Shan, Yongmei Wang, Qiaomei Chen

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 146038 - 146038

Published: Sept. 13, 2023

Language: Английский

Citations

9
Dimerized M‐series Acceptors with Low Diffusion Coefficients for Efficient and Stable Polymer Solar Cells DOI

Yuhang Zhu,

Yunlong Ma, Liu L

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(50)

Published: Aug. 20, 2024

Abstract As the simplest oligomeric acceptors, dimerized acceptors (DAs) are easier to synthesize, and more importantly, they can retain good intermolecular interaction photovoltaic properties of their parent small‐molecule (SMAs). Nevertheless, currently most efficient DAs derived from banana‐shaped might suffer inferior device stability with high diffusion coefficients. Herein, we design synthesize two planar (DMT‐FH DMT‐HF) by bridging linear‐shaped M‐series SMAs a thiophene unit. The effects fluorination position on coefficients, power conversion efficiencies (PCEs) systematically studied. Our results suggest that DMT‐HF ending indanone groups shows enhanced interactions, improved PCE compared counterpart (DMT‐FH) central groups. Further optimization DMT‐HF‐based devices yields an outstanding 17.17 %, which is highest among all SMA‐based DAs. Notably, low coefficient (3.36×10 −24 cm 2 s −1 ) DMT‐HF, resulting retains over 93 % initial after 5000 h continuous heating at 85 °C, suggesting its excellent thermal stability. highlight importance for achieving stable polymer solar cells.

Language: Английский

Citations

3
Single‐Layer Carbon Nitride as an Efficient Metal‐Free Organic Electron‐Transport Material with a Tunable Work Function DOI Creative Commons
Abdus Saboor, Oleksandr Stroyuk, Oleksandra Raievska

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(29)

Published: March 7, 2024

Abstract Single‐layer carbon nitride (SLCN) is introduced as a metal‐free organic electron transport material (ETL) for solar cells, delivering performance comparable to that of the benchmark nanocrystalline ZnO. SLCN produced in form stable aqueous inks and can serve an efficient layer three different types active layers, showing high stability photodegradation. A lower conductivity films compared ZnO counter‐balanced by their higher transparency light scattering losses. The ETL provides unique opportunity tune work function from ca. −4.1 −4.6 eV varying annealing temperature due partial thermal oxidation film. PL band position follows oxidation‐induced changes allowing properties be used predict PV efficiency. 2D structure coupled with structural compositional variability, tunability show promise emerging devices.

Language: Английский

Citations

2