Self-Assembled Monolayer Engineered ZnO Electron Transport Layer to Improve the Photostability of Organic Solar Cells

KG Gebremariam, FG Hone, A Negash, Z Genene… - Energy & …, 2024 - ACS Publications
The degradation of organic solar cells (OSCs) can occur in any of the layers, underlining the
importance of each layer in prolonging their lifetime. To enhance the performance and …

Progress Toward Stable Organic Solar Cells

NA Tegegne, LT Nchinda… - Advanced Optical …, 2024 - Wiley Online Library
Organic solar cells (OSCs) are suitable candidates for next‐generation renewable energy
sources due to their low cost of production and flexibility. Their power conversion efficiency …

The roles of acceptors in the thermal-degradation of P3HT based organic solar cells

YA Mohammed, FG Hone, GT Mola… - Physica B: Condensed …, 2023 - Elsevier
The effects of acceptors on thermal degradation of thin film organic solar cells (OSCs) were
investigated under the controlled environment. The popular donor polymer molecule, poly (3 …

Investigation into aggregation types in a benzodithiophene–isoindigo copolymer

E Asmare, FG Hone, W Mammo, TPJ Krüger… - The Journal of …, 2023 - pubs.aip.org
The type of aggregation in conjugated polymers determines their use in electronic devices.
H-type aggregates are most suitable for solar cell applications, while J-type aggregates are …

Conformation-Dictated Aggregation Photophysics in Isoindigo-Based Copolymers

E Asmare, N Bekri, LT Nchinda, FG Hone… - The Journal of …, 2024 - ACS Publications
The aggregation of polymer chains directly influences the morphology of thin films used in
optoelectronic devices. Therefore, understanding the relationship between the backbone …

Photostability of benzodithiophene based polymer: effect of PC60BM and intermolecular interactions

N Bekri, E Asmare, W Mammo… - Materials Research …, 2022 - iopscience.iop.org
Organic solar cells working under continuous light irradiation are prone to photo-induced
degradation. Photostabilities of benzodithiophene-alt-2-decyltetradecyl substituted isoindigo …

Thermally Stable Direct Arylation Derived Terthiophene-Isoindigo Copolymer for Organic Solar Cell Application

N Bekri, W Mammo, NA Tegegne - New Journal of Chemistry, 2025 - pubs.rsc.org
The lifetime of organic solar cells (OSCs) remains a significant challenge for their
commercial viability. In this study, we successfully synthesized a low band gap copolymer …

Unveiling the thermal stability of diketopyrrolopyrrole-based terpolymers: a key element for enhanced efficiency and stability of organic solar cells

LT Nchinda, Z Genene, W Mammo… - New Journal of …, 2024 - pubs.rsc.org
With the advent of novel polymers, organic solar cell (OSC) research has evolved
significantly over the past decade. The molecular engineering of terpolymers has allowed for …

Spectroscopic Wonders: A Multifunctional All‐In‐One Molecule for Nanophotonics

A Szukalski, Y Cheret, AM Grabarz… - Advanced Optical …, 2024 - Wiley Online Library
Nowadays, multifunctional compounds emerge as an intriguing category of materials with
potential applications in nanophotonics. Particularly, organic compounds stand out due to …

Tailoring intra-molecular coupling in BDT-based copolymers to enhance their performance in fullerene-free organic solar cells

NA Tegegne, A Negash, D Yilma… - Materials …, 2023 - pubs.rsc.org
Three copolymers based on a 4, 8-bis (4, 5-dioctylthiophen-2-yl) benzo [1, 2-b: 4, 5-b′]
dithiophene (BDTT) donor unit coupled with 6-(2-ethylhexyl)-5H-[1, 2, 5] thiadiazolo [3, 4-f] …