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Full-Text Articles in Physical Sciences and Mathematics
The Effect Of Curing And Zirconium Content On The Wettability And Structure Of A Silicate Hybrid Sol-Gel Material, Emma Machugh, Maikki Cullen, Alicja Kaworek, Brendan Duffy, Mohamed Oubaha
The Effect Of Curing And Zirconium Content On The Wettability And Structure Of A Silicate Hybrid Sol-Gel Material, Emma Machugh, Maikki Cullen, Alicja Kaworek, Brendan Duffy, Mohamed Oubaha
Articles
Functional hybrid sol-gel coatings have been developed for numerous applications with a wide range of wettabilities. This study proposes to investigate the relationship between the structure and the wetting properties of a zirconium modified silicate hybrid sol-gel coating. The structures of the coatings were altered by varying the content of zirconium, and the curing process, while keeping the sol-gel preparation conditions identical. The structure of the materials was characterized by FTIR, 29Si NMR and SEM. The thermal properties and the wettability are identified by DSC and contact angle measurements, respectively. By corroborating the structural and wettability analyses, it is shown …
Ultrasonic Spray Deposition Of Tio2 Electron Transport Layers For Reproducible And High Efficiency Hybrid Perovskite Solar Cells, Jingsong Sun, Alexander Pascoe, Steffen Meyer, Qijie Wu, Enrico Della Gaspera, Sonia Raga, Tian Zhang, Andrew Nattestad, Udo Bach, Yi-Bing Cheng, Jacek Jasieniak
Ultrasonic Spray Deposition Of Tio2 Electron Transport Layers For Reproducible And High Efficiency Hybrid Perovskite Solar Cells, Jingsong Sun, Alexander Pascoe, Steffen Meyer, Qijie Wu, Enrico Della Gaspera, Sonia Raga, Tian Zhang, Andrew Nattestad, Udo Bach, Yi-Bing Cheng, Jacek Jasieniak
Australian Institute for Innovative Materials - Papers
The fabrication of high efficiency perovskite solar cells at larger scales will rely on the optimized deposition conditions of every layer using scalable methodologies. Most current perovskite devices that employ the archetypal TiO2 hole blocking layer utilise a simple air-brush approach. This approach is not scalable as it results in significant layer inhomogeneity across larger devices areas. To overcome this inherent limitation, in this work we use ultrasonic spray deposition as an alternative approach for the TiO2 deposition. Focusing on identical reaction chemistries as for air-brush, namely bis(isopropoxide)-bis(acetylacetonate) titanium (IV) based solutions, we find that under optimized conditions smooth TiO2 …
Electrostatically Assembled Construction Of Ternary Tio2-Cu@C Hybrid With Enhanced Solar-To-Hydrogen Evolution Employing Amorphous Carbon Dots As Electronic Mediator, Jiaxin Zhu, Mengmeng Zhang, Jinyan Xiong, Yinan Yan, Weijie Li, Gang Cheng
Electrostatically Assembled Construction Of Ternary Tio2-Cu@C Hybrid With Enhanced Solar-To-Hydrogen Evolution Employing Amorphous Carbon Dots As Electronic Mediator, Jiaxin Zhu, Mengmeng Zhang, Jinyan Xiong, Yinan Yan, Weijie Li, Gang Cheng
Australian Institute for Innovative Materials - Papers
The huge demand for renewable hydrogen produced by water splitting has prompted people to conduct in-depth research on the hydrogen evolution reaction for the development of earth-abundant, non-precious, and multi-functional metal catalysts. Herein, a noble-metal-free ternary composite of TiO2-Cu@C was prepared by electrostatic self-assembly loaded copper nanoparticles and amorphous carbon dots (CDs) on porous TiO2 microrods. The good conductivity of the CDs was beneficial to promoting the charge transfer and separation, generating an enhanced solar-to-hydrogen performance on TiO2-Cu@C. The optimized TiO2-Cu@C reveals a stable and notable hydrogen evolution rate of 3911 μmol g−1h−1, which is 1.6 times that of TiO2-Cu …