Improved performances in Sb2Se3 solar cells based on CdS buffered TiO2 electron transport layer

Abstract

The strong Ti-O bonds in TiO 2 and poor compatibility to Sb 2 Se 3 result in poor performance when used as electron transport layers (ETL) for Sb 2 Se 3 solar cells. Therefore, cadmium sul de is usually used as a buffer layer to improve its compatibility. In the present work, we deposited a layer of CdS by spin coating method on TiO 2 ETL and fabricated TiO 2 /CdS dual ETL. The CdS layer improved the electronic properties of TiO 2 and grain orientation of Sb 2 Se 3 thin lms. As a result, the average short circuit current and ll factor of Sb 2 Se 3 solar cells were improved, and the nal champion power conversion e ciency was enhanced from 2.6-4.71%. This study supplied a route for the application of titanium dioxide as a broadband gap electron transfer material in Sb 2 Se 3 solar cells.

Multiple H‐Bonding Cross‐Linked Supramolecular Solid–Solid Phase Change Materials for Thermal Energy Storage and Management

“…Typically, FSPCMs are prepared by encapsulating PEG in organic and inorganic porous materials, such as polymer foams, graphene, carbon nanotubes, and fibrous scaffolds, to maintain the shape stability of materials. [ 26–30 ] For example, Jia et al. incorporated PEG into the composite framework boron nitride@chitosan to prepare the FSPCM.…”