Fabricating High-Efficiency Sb(S,Se) Solar Cells by Novel Additive-Assisted Longitudinal Component Engineering.

Antimony selenosulfide (Sb(S,Se)) solar cells have achieved an efficiency of over 10.0%. However, the uncontrollable hydrothermal process makes preparing high-quality Sb(S,Se) thin films a bottleneck for efficient Sb(S,Se) solar cell.

Toward High Efficient Cu ZnSn(S ,Se ) Solar Cells: Break the Limitations of V and FF.

Increasing the fill factor (FF) and the open-circuit voltage (V ) simultaneously together with non-decreased short-circuit current density (J ) are a challenge for highly efficient Cu ZnSn(S,Se) (CZTSSe) solar cells. Aimed at such target in CZTSSe solar cells, a synergistic strategy to tailor the recombination in the bulk and at the heterojunction interface has been developed, consisting of atomic-layer deposited aluminum oxide (ALD-Al O ) and (NH ) S treatment. With this strategy, deep-level Cu defects are converted into shallower V defects and improved crystallinity, while the surface of the absorber is optimized by removing Zn- and Sn-related impurities and incorporating S.

Low-Cost Antimony Selenosulfide with Tunable Bandgap for Highly Efficient Solar Cells.

About 10% efficient antimony selenosulfide (Sb (S,Se) ) solar cell is realized by using selenourea as a hydrothermal raw material to prepare absorber layers. However, tailoring the bandgap of hydrothermal-based Sb (S,Se) film to the ideal bandgap (1.3-1.

Oxygen Content Modulation Toward Highly Efficient SbSe Solar Cells.

Vapor-transport deposition (VTD) method is the main technique for the preparation of SbSe films. However, oxygen is often present in the vacuum tube in such a vacuum deposition process, and SbO is formed on the surface of SbSe because the bonding of Sb-O is formed more easily than that of Sb-Se. In this work, the formation of SbO and thus the carrier transport in the corresponding solar cells were studied by tailoring the deposition microenvironment in the vacuum tube during SbSe film deposition.