Researchers at the Korea Institute of Materials Science (KIMS) have developed an ultrasensitive, lead-free perovskite sensor to detect ammonia gas leaks.
This development addresses the need for environmentally friendly monitoring tools that can identify toxic leaks before they reach dangerous levels for human health.
Principal researcher Myungkwan Song and his team led the project in South Korea. The team focused on creating a device that avoids the use of lead, a common component in many perovskite materials that poses its own environmental risks.
The resulting sensor is capable of detecting ammonia concentrations as low as one ppm [1]. This level of sensitivity allows for the early identification of leaks in industrial settings where ammonia is used for refrigeration, or chemical processing.
Ammonia is widely used across various industries, but its toxicity makes precise monitoring essential. By utilizing a lead-free perovskite structure, the KIMS team aimed to provide a sustainable alternative to existing detection methods.
The project represents a shift toward safer materials in the field of chemical sensing. The team developed the technology to ensure that the detection process itself does not introduce harmful substances into the environment.
“The sensor can detect ammonia concentrations as low as one ppm.”
The shift toward lead-free perovskites is a critical step in sustainable materials science. While perovskites are highly efficient for sensing and solar energy, their reliance on toxic lead has limited their widespread adoption. A sensor capable of detecting one ppm of ammonia without using hazardous materials suggests that industrial safety monitoring can be achieved without compromising environmental standards.
