SINGAPORE: Researchers at Nanyang Technological University have made significant advancements in semiconductor materials by synthesizing four unique types of two-dimensional halide perovskites.
These materials hold great promise for applications in solar cells, light-emitting diodes , and optoelectronic devices.
The team employed an innovative method to develop the new perovskites, incorporating dimethyl carbonate, a non-toxic solvent, into methylammonium-based perovskite crystals. This is significant because the band gap directly influences the material’s colour and electrical properties, making tunable band gaps crucial for adapting perovskites to various technological applications.When heated to 80°C, the material shifted from orange to red and reverted to its original colour upon cooling to room temperature. The team repeated this colour-changing process over 25 cycles, showcasing the material’s stability and reliability.
In addition to these applications, the researchers believe their discovery will advance the development of 2D halide perovskites in the field of optoelectronics and beyond.
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