Unlabelled: A solution processed MoO3/PEDOT:PSS bilayer structure is used as the hole transporting layer to improve the efficiency and stability of planar heterojunction perovskite solar cells. Increased hole extraction efficiency and restrained erosion of ITO by
Pedot: PSS are demonstrated in the optimized device due to the incorporation of an MoO3 layer.
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http://dx.doi.org/10.1039/c5nr01864a | DOI Listing |
ACS Appl Mater Interfaces
January 2025
RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
A fluoroalkyl-containing electron acceptor (Y-SSM) is designed and synthesized to control the orientation of the benchmark non-fullerene acceptor Y6 in thin films. Due to the low surface energy of the two fluoroalkyl chains at the terminal part of Y-SSM, it spontaneously segregates to the film surface during spin coating, forming a monolayer of edge-on oriented Y-SSM. The Y-SSM monolayer leads to crystallization of the underlying Y6 to induce a standing-up orientation in the bulk of the films, which is strikingly different from pure Y6 films that tend to be a face-on orientation.
View Article and Find Full Text PDFMolecules
January 2025
School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China.
Isoindigo (IID)-based non-fullerene acceptors, known for their broad absorption spectra and high charge carrier mobilities, play a crucial role in organic photovoltaics. In this study, two A-DA'D-A type unfused ring acceptors (URAs), IDC8CP-IC and IDC6CP-IC, were designed and synthesized using cyclopentadithiophene (CPDT) and IID core units, each functionalized with different alkyl chains (2-hexyldecyl and 2-octyldodecyl), through an atom- and step-efficient direct C-H arylation (DACH) method. Both URAs, despite the absence of non-covalent conformation locking between CPDT and IID, demonstrated favorable molecular planarity, broad absorption ranges, low band gaps, and high molar absorption coefficients.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
Due to high binding energy and extremely short diffusion distance of Frenkel excitons in common organic semiconductors at early stage, mechanism of interface charge transfer-mediated free carrier generation has dominated the development of bulk heterojunction (BHJ) organic solar cells (OSCs). However, considering the advancements in materials and device performance, it is necessary to reexamine the photoelectric conversion in current-stage efficient OSCs. Here, we propose that the conjugated materials with specific three-dimensional donor-acceptor conjugated packing potentially exhibit distinctive charge photogeneration mechanism, which spontaneously split Wannier-Mott excitons to free carriers in pure phases.
View Article and Find Full Text PDFJ Colloid Interface Sci
April 2025
Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan.
A novel metal-organic framework (MOF), (Cu-S)MOF, with a copper-sulfur planar structure was applied to photocatalytic H production application. (Cu-S)MOF@ZnS nanocomposite was synthesized using a microwave-assisted hydrothermal approach. The formation of (Cu-S)MOF and wurtzite ZnS in the composite nanoparticles was analyzed by X-ray diffraction (XRD), field emission-scanning electron microscopy (FESEM), and high-resolution transmission electron microscope (HRTEM).
View Article and Find Full Text PDFSmall
December 2024
Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, and School of Physics and Optoelectronic, Xiangtan University, Hunan, 411105, P. R. China.
Photocatalysis has garnered significant attention as a sustainable approach for energy conversion and environmental management. 2D black phosphorus (BP) has emerged as a highly promising semiconductor photocatalyst owing to its distinctive properties. However, inherent issues such as rapid recombination of photogenerated electrons and holes severely impede the photocatalytic efficacy of single BP.
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