Science Today, Technology Tomorrow!
PhD scholarship opportunities are available: 1). QUT – Repurposing waste materials for use in energy applications (PhD Scholarship) 2). Advanced PV and radiation attenuation materials for space applications – PhD scholarship available – Centre for Materials Science (qut.edu.au) 3). Advanced Materials for High […]
This review highlights the progress in the emerging field of both integrated PSC-SC photocapacitors and PSC-LIB photobatteries in detail, including new device concepts, operation mechanisms, and the performance for each part and the whole device. We further analyze the existing challenges and limitations of the […]
Herein, we demonstrate resilient, high-efficiency triple-cation perovskite solar cells (PSCs) by incorporating carbon dots (CDs) derived from human hair into the perovskite film synthesis. It is found that a toluene-based antisolvent containing CDs results in the formation of a bilayer structure where a wave-like textured top perovskite layer is assembled on the bottom dense perovskite counterpart, enabling reduced optical losses through light trapping. Further characterization has revealed that the CDs are formed around and over the surface of perovskite crystals, serving as a full armour to preserve the perovskite stoichiometry during the crystallization and operation. Accordingly, the CD-wrapped perovskite film demonstrates a reduced density of interfacial defects including metallic lead clusters and uncoordinated halide vacancies, improved carrier recombination lifetime, better energy alignment with the adjacent hole transport layer, and enhanced hydrophobicity. Found out more here
Stable, low‐dimensional‐network perovskite materials with tailored molecular dimensionality are promising materials for optoelectronic devices including solar cells, light emitting diodes, luminescent solar concentrators, and photodetectors with enhanced performance and stability. This review summarizes the research progress and challenges in this area, providing insights into the […]
We develop an approach that combines molecular dimensionality control and interfacial passivation of perovskite layers using a novel post-device treatment (PDT) with the vapour of ethylene-amine salts of different carbon chain lengths to improve both efficiency and stability of the PSCs. The effect of a […]
A method to form 1D pyrrolidinium lead iodide (PyPbI3) in situ atop photoactive 3D methylammonium lead iodide (MAPbI3) using pyrrolidine posttreatment is reported. As compared with 3D MAPbI3, 1D PyPbI3 has a wider bandgap and is more environmentally stable, and it serves as a tunneling contact to mitigate charge carrier recombination and as a robust barrier against environmental degradation when incorporated into organometal halide solar cells. Find out more at Energy Technology
Excellent work by Disheng have been choosed as front cover for the ACS Applied Materials & Interfaces Journal. The work focuses on perovksite solar cell, using 2D Ruddlesden–Popper (PA)2PbI4 perovskites formed by n-propylammonium iodide with PbI2 produce a superhydrophobic surface to maintain the long-term stability […]
2D–3D Mixed Organic–Inorganic Perovskite Layers for Solar Cells with Enhanced Efficiency and Stability Induced by n-Propylammonium Iodide Additives Disheng Yao, Chunmei Zhang, Shengli Zhang, Yang Yang, Aijun Du, Eric Waclawik, Xiaochen Yu, Gregory J. Wilson and Hongxia Wang. Device instability has become an obstacle for […]
The article “Kinetic and material properties of interfaces governing slow response and long timescale phenomena in perovskite solar cells” reviews the most recent advancement on understanding the interfaces in PSCs, in particular the interfaces of perovskite/electron transport layer (ETL) and perovskite /hole transport layer. Furthermore, It provides a guidance in the immense complexity of dynamic behaviours of the PSCs, particularly concerning the slowest time scale measurement that have a maximum impact in the actual operation of the solar cell and address the separation of phenomena such as ion migration, interfacial charge accumulation, and surface electrochemical reactions. Find out more at EES.
Aqueous alkaline–acid hybrid electrolyte for zinc-bromine battery with 3V voltage window Abstract: Considerable efforts have been devoted to the development of zinc (Zn) batteries with new battery chemistries (eg. Zn-ion battery, Zn-halogen battery, Zn-alkaline battery, Zn-air battery) that are alternatives to Li-ion technology. Unfortunately, the […]
