Highly Stable Inverted Organic Solar Cell Structure Using Three Efficient Electron Transport Layers

Energies, Journal Year: 2025, Volume and Issue: 18(1), P. 167 - 167

Published: Jan. 3, 2025

The efficiency of organic solar cells (OSCs) is influenced by various factors, among which environmental temperature plays a significant role. Previous studies have shown that the thermal stability these can be enhanced incorporating third component into their structure. Ternary cells, particularly, promising results in improving stability. A well-designed electron transport layer (ETL) significantly bolster facilitating efficient charge and reducing recombination. In this study, we investigated effect temperature, ranging from 300 K to 400 K, on inverted ternary structures using one-dimension optoelectronic model “Oghma-Nano 8.0.034” software. examined include (S1) “FTO/SnO2/PM6:D18:L8-BO/PEDOT: PSS/Ag”, (S2): “FTO/C60/PM6:D18:L8-BO/PEDOT: (S3): “FTO/PC60BM/PM6:D18:L8-BO/PEDOT: PSS/Ag”. Simulations three different ETLs—SnO2, C60, PC60BM—at 340 (66.85 °C) resulted main open circuit voltage (Voc) fill factor (FF) values, addition an important Jsc value terms thermally stable devices. However, retained 92% initial ~20% observed at demonstrating under high power conversion (PCE) conditions.

Language: Английский

Mitigation of Illumination Sensitive Dark Current in Broadband Organic Photodiode Enabled by Robust Interface Engineering

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract The reliability of performance metrics in organic photodiodes (OPDs) is a fundamental factor for their efficacy real‐time applications. Among these metrics, the dark current density stands out its direct impact on sensitivity detectors. In this study, an anomalous illumination‐sensitive variation observed fabricated near‐infrared OPDs, which undermines device reliability. systematic investigation reveals that behavior stems from photocatalytic nature zinc oxide (ZnO), electron transport layer used OPD. ZnO detrimentally affects stability active material, particularly nonfullerene acceptor employed study. Through robust interface engineering approach, involves modifying between and layer, anomalies are successfully mitigated, enhancing consistency OPDs. addition to reducing current, strategy improves overall operational especially under ultraviolet exposure.

Language: Английский

Study curing of epoxy resin by Isophoronediamine/ Triethylenetetramine and reinforced with montmorillonite and effect on compressive strength

BMC Chemistry, Journal Year: 2024, Volume and Issue: 18(1)

Published: Oct. 28, 2024

Abstract Epoxy is a widely used thermosetting resin recognized for its exceptional performance in adhesives, coatings, and various other applications, attributed to high tensile strength, stiffness, electrical performance, chemical resistance. Epoxy-clay nanocomposites are extensively employed across diverse industries. The physical properties of these influenced by the processing methods, clay modifiers, curing agents during their preparation. In this study, epoxy/nanoclay composites based on Diglycidyl Ether Bisphenol-A (DGEBA) will be cross-linked using Isophorone Diamine (IPD), cycloaliphatic amine, Triethylenetetramine (TETA), linear aliphatic amine. initial phase research assess impact different types cross-linkers, both individually combination at molar ratios (such as Diamine: (IPA: TETA) / 25:75 75:25), compressive strength epoxy mortar. subsequent phase, formulation with an (IPD: TETA which demonstrates highest selected further investigation. This evaluate effects weight percentages (3%, 5%, 7%) organically modified montmorillonite (OMMT). prepared characterized range techniques, including Fourier Transform Infrared Spectroscopy (FT-IR), Transmission Electron Microscopy (TEM), Scanning (SEM). composite IPD: 75:25 3 wt % OMMT expected show 94 MPa.

Language: Английский