Recent Posts

Perovskite solar cells based self-charging power packs: Fundamentals, applications and challenges

Perovskite solar cells based self-charging power packs: Fundamentals, applications and challenges

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 […]

Journal of Material Chemistry A – Front cover

Journal of Material Chemistry A – Front cover

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 […]

A new review article on Low‐Dimensional‐Networked Perovskites

A new review article on Low‐Dimensional‐Networked Perovskites

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 research direction in the future.
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The effect of ethylene-amine ligands enhancing performance and stability of perovskite solar cells

The effect of ethylene-amine ligands enhancing performance and stability of perovskite solar cells

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 […]

1D Pyrrolidinium Lead Iodide for Efficient and Stable Perovskite Solar Cells

1D Pyrrolidinium Lead Iodide for Efficient and Stable Perovskite Solar Cells

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 […]

ACS Applied Materials & Interfaces Front Cover

ACS Applied Materials & Interfaces Front Cover

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.

New publications on ACS Applied materials & Interfaces

New publications on ACS Applied materials & Interfaces

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 […]

A new review article on Energy & Environmental Science journal by Prof. Hongxia Wang

A new review article on Energy & Environmental Science journal by Prof. Hongxia Wang

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 […]

PUBLICATION ON ENERGY STORAGE MATERIALS BY FENG YU

PUBLICATION ON ENERGY STORAGE MATERIALS BY FENG YU

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 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.

Open positions

Open positions

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 […]