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 […]
2 PhD scholarships are available from next year in the area of energy material and device . Candidates should be solid background in chemistry, physics or material science and should have completed Master degree by research with at least 1 first author publication in decent […]
Professor Hongxia Wang is granted the ARC Discovery Projects Funding 2019, the funding for world-leading research.
The Approved Proposal:
Green synthesis of organometal perovskite solar cells. This project aims to understand the mechanism that governs the formation and crystallisation process of organic-inorganic lead halide perovskite films from non-toxic, environmentally friendly, protic ionic liquids. The project will develop new ionic liquid solvent systems that deliver appropriate morphology, and electrical and optical properties to fabricate high performance perovskite solar cells using environmentally friendly, low-toxicity processes. Successful achievement of the outcomes will enable environmentally-friendly, industrial scale processing of perovskite materials, placing Australia at the forefront of organometallic perovskite materials processing with applications in renewable energy and other electro-optical applications.
The work “Tailoring Crystal Structure of FA0.83Cs0.17PbI3 Perovskite Through Guanidinium Doping for Enhanced Performance and Tunable Hysteresis of Planar Perovskite Solar Cells” has been published on Advanced Functional Materials journal. Congratulation to Mr. Ngoc Duy Pham!