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 […]
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 of the perovskite layer against moisture-induced decomposition.
About the Article.
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 […]
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 progress of Zn batteries is hindered by their limited operating voltages (<1.8 V). To enhance the operating voltage, in this study, a new aqueous zinc-bromine (Zn-Br2) battery is demonstrated using alkaline–acid hybrid electrolytes. The alkaline–acid hybrid electrolytes provide a wide potential window from −1.6 to 1.4 V vs. saturated calomel electrode (SCE). The fabricated Zn-Br2 battery delivers an average operating voltage of 2.1 V, which is the highest reported value among all Zn batteries, including Zn-ion battery, Zn-halogen battery, Zn-alkaline battery and, Zn-air battery etc. Significantly, the as-developed aqueous Zn–Br2 battery also exhibited a long-term lifespan (2000 cycles) and ultrahigh specific capacity by combining battery-like and capacitive charge storage. This demonstration of a high-voltage aqueous Zn-Br2battery configuration represents a significant new development of this class of aqueous electrochemical energy storage device.
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 […]
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!
Yang Yang (Ricky) gives a great presentation about his work in his confirmation seminar today 12 Oct 2018. Title: Inorganic Hole Transport Material to Improve Performance and Stability of Perovskite Solar Cells Organic-inorganic hybrid lead trihalide perovskite solar cells (PSCs) have shown great potential for […]