USTC makes development in solar cell performance

• A study team led by Prof. CHEN Tao and also Prof. ZHU Changfei, and also their partner Prof. HAO Xiaojing at UNSW, created a hydrothermal deposition approach for the synthesis of antimony selenosulfide for solar cell applications. With this absorber material, the solar cell break the 10% benchmark performance obstacle. This outcome has actually been released in Nature Energy entitled "Hydrothermal deposition of antimony selenosulfide thin films enables solar cells with 10% performance".

Antimony selenosulfide, Sb2(S, Se)3, as the ROHS-compliant and also earth-abundant light collecting material, has actually gotten enhancing rate of interests during the past couple of years. The band void of Sb2(S, Se)3 is tunable in the series of 1.1-1.7 eV, pleasing the demand for ideal sunshine collecting.

On top of that, Sb2(S, Se)3 has high termination coefficient and also the film density of regarding 500 nanometers can take in enough light irradiation. With these benefits, the Sb2(S, Se)3 is an encouraging power material for the applications of light-weight and also portable electricity generation gadgets.

Take Into Consideration that Sb2(S, Se)3 is contained earth-abundant elements as well as with the superb security, the improvement in breaking 10% benchmark performance will certainly establish a ground for commercialization path. In this research study, the writers located that the hydrothermal deposition at supercritical condition makes it possible for the generation of portable as well as flat film with uniform aspect circulation in the side direction.

These remarkable qualities allow the reliable service provider transport and reductions of the damaging recombination. With more optimizations of the band space, cation/anion ratio, crystal orientation and also defect homes, the device successfully achieves a record power conversion effectiveness.

The customer of this paper extremely praised this work, commenting that "This paper presents a site effectiveness value for Sb2(S, Se)3 solar cells damaging the 10% barrier.", "This success loses brand-new light on the examination and application of Sb2(S, Se)3 ...".

The co-first writers of this write-ups are Dr. RONG feng, Dr. WANG Xiaomin and also LIAN Weitao, from the School of Chemistry as well as Materials Science of University of Science as well as Technology of China.

The co-corresponding writers are ZHU Changfei (USTC), HAO Xiaojing (UNSW) and CHEN Tao (USTC). Partners also consist of Prof. YANG Shangfeng at USTC, Prof. XING Guichuan at University of Macau, Prof. CHEN Shiyou at the East China Normal University and so forth.