Phase instability mitigation of large bandgap perovskite materials
발표자
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초록
내용
Perovskite materials have been utilized in various optoelectronic devices such as solar cells, light-emitting diodes, and lasers. Researchers have been attempting to create complex perovskite materials by incorporating various organic ligands, but the effects of these ligands on the materials are not well understood. Additionally, there have been stability issues with perovskite materials when used in real-world applications, such as the photo-decomposition of solar cells and color changes during the operation of light-emitting devices. To better understand these issues, experiments have been conducted to examine the effects of electrical bias on the ionic path, which may lead to phase segregation or degradation of the crystal structure. To control the extent of segregation, ligand materials, such as ammonium salts, can be used to affect the degree of ionic movement.