The new optoelectronics detection materials and devices team at the College of Electronic Science and Engineering in Jilin University (JLU) published an article in a leading scientific journal Nature Communications recently.

The article, Day-Night imaging without Infrared Cutfilter removal based on metal-gradient perovskite single crystal photodetector, unveils the team’s important progress in the optoelectronics detection field.

The co-first authors are doctoral student MA Yao and Professor SHEN Liang at JLU; SHAN Leting, a postgraduate at Nanchang University and Professor YING Yiran of Hong Kong Polytechnic University. Professor YAO Kai of Nanchang University is the corresponding author.

According to the article, the day-night imaging technology which enables full-color in the daytime and infrared images at night is widely applicable in multiple fields – such as security monitoring, machine vision and autonomous driving.

Achieving high-quality day-night imaging technology without infrared Cutfilter Removal or ICR is deemed to have great significance.

Regarding the requirements for detectors of day-night imaging without ICR, the research team designed and studied a photodetector that presents variable-spectrum responses by developing metal-gradient perovskite single crystals.

The development of metal alloy perovskite photodetectors is expected to provide an effective design strategy for optoelectronics imaging technologies.