Low temperature, solution-processed alumina for organic solar cells

Abstract

In this work, we have reported for the first time a facile route for developing solution-processed Al2O3 film at a greatly reduced processing temperature and studied its applications in producing inverted polymer solar cells (PSCs). These PSCs using Al2O3 thin film as the electron-extraction layer demonstrated improved diode characteristics and achieved a 20% higher power conversion efficiency than devices using the conventional ZnO buffer layer. Furthermore, the low temperature processing of the Al2O3 film makes it compatible with fabrication of flexible organic electronic devices based on plastic substrates.

Interfacial Materials for Organic Solar Cells: Recent Advances and Perspectives

“…Nevertheless, the performance of these inverted devices was sensitive to the Al 2 O 3 CILs, which need a control of ultrathin thickness and UV activation on them to enhance their electrical conductivity. Recently, a low temperature and solution‐processing route was used to tune the properties of Al 2 O 3 CILs . The WFs of Al 2 O 3 CILs were tuned by controlling the annealing temperature.…”

Enhancing activity in a nanostructured BiVO4 photoanode with a coating of microporous Al2O3

“…Beneficial effects of Al2O3 coatings on ZnO-based dye-sensitized solar cells were investigated as a function of thickness [26]. Solution processed Al2O3 were also employed in organic photovoltaic devices [27] and hybrid devices [28]. In photocatalysis, TiO2 films were coated with Al2O3/Pt to improve hydrogen evolution and efficiency in dechlorination reactions [29].…”

Collateral hydrogenation over proton-conducting Ni/BaZr0.85Y0.15O3−δ catalysts for promoting CO2 methanation

“…† In the above XPS spectra, the peak of Al-O bond lattice oxygen appeared at $531 eV, and ignorable OH peaks were observed, in agreement with the results of O 1s XPS analysis of conventional Al 2 O 3 reported in a number of documents. [34][35][36] Thus, the decreased amount of OH species observed for Ni/Al 2 O 3 was in stark contrast to the large number of hydroxyl species observed on the surface of Ni/BZY under identical conditions. Thus, the proton-conductive BZY support clearly provided an alternative hydrogenation path, which improved the performance of Ni/ BZY in the CO 2 methanation reaction.…”