Publications by authors named "Jiayou Xue"
Improved Carrier Lifetimes of CdSe Thin Film via Te Doping for Photovoltaic Application.
ACS Appl Mater Interfaces
April 2023
Cadmium selenide (CdSe) solar cells have proven to be a remarkable potential top cell for a silicon-based tandem application. However, the defects and short carrier lifetimes of CdSe thin films greatly limit the solar cell performance. In this work, a Te-doped strategy is proposed to passivate the Se vacancy defects and increase the carrier lifetime of the CdSe thin film.
View Article and Find Full Text PDFShort-wave infrared detectors are increasingly important in the fields of autonomous driving, food safety, disease diagnosis, and scientific research. However, mature short-wave infrared cameras such as InGaAs have the disadvantage of complex heterogeneous integration with complementary metal-oxide-semiconductor (CMOS) readout circuits, leading to high cost and low imaging resolution. Herein, a low-cost, high-performance, and high-stability Te Se short-wave infrared photodiode detector is reported.
View Article and Find Full Text PDFArticle Synopsis
- Selenium is a promising material for solar cells due to its high absorption and photoconductivity but has low efficiency because its bandgap is too high and lacks a good electron transport layer.
- By alloying 30% Tellurium with 70% Selenium, the bandgap is optimized to 1.36 eV, ideal for solar cell performance.
- Using a ZnO electron transport layer with a good interface leads to a significant increase in efficiency, reaching 1.85% for the ZnO/SeTe solar cells.