What They Say
Researchers from the AMOLF lab of the Netherlands Organisation for Scientific Research have developed a new way of creating a reactive ink based on perovskites. The material is created by ‘painting’ a a solution of methylammonium bromide onto a ‘canvas’ of lead carbonate. The material forms a green emitting perovskite.
“The challenge of this research was developing the chemical reaction and the conditions: the quantity of ink, the pressure, and the properties of the canvas. None of these were known, and the process does not work if they are not exactly right,”
“All traditional techniques result in different layers of perovskite next to each other or on top of each other. Our method results in a single layer that consists of different types of perovskite.”
Perovskites are usually quite sensitive to the treatments used in traditional methods, such as etching or rinsing. These can damage the perovskite. With ion exchange lithography, these treatments are no longer needed. Cleanrooms are not required to make the semiconductors and a working LED has been made.
A paper on the work was published in Advanced Materials.
What We Think
It amazes me how much development work is going on with perovskite mateials. (BR)
