Wei Xianqi, Lu Jiayi, Zhang Silong, Tang Jiashu, Wu Shichao, Lv Tengbo, Wang Xiaoli
School of Science, Jiangsu Ocean University, Lianyungang, Jiangsu, China.
School of Microelectronics, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Front Chem. 2025 Feb 25;13:1524254. doi: 10.3389/fchem.2025.1524254. eCollection 2025.
CsPbBr (CPB) perovskite has demonstrated unique advantages as a photoelectric material. However, its stability and optoelectronic properties exhibit significantly susceptibility to environmental conditions during practical applications. Additionally, the synthesis of CPB often involves complex procedures and stringent requirements for the experimental environment, resulting in low yield. In this study, we employed an aqueous-phase synthesis method to incorporate strontium into CPB, aiming to enhance the long-term stability of the perovskite in aqueous solutions. And the introduction of strontium (Sr) is expected to improve the photoluminescent properties of the perovskite. The results demonstrate that the synthesized perovskite remains stable in aqueous solution for up to 264 h, with enhanced photoluminescence intensity and a blue shift attributed to the incorporation of strontium. This approach significantly increases the potential value of CPB perovskite for applications in optoelectronic materials and devices.
溴化铯铅（CPB）钙钛矿作为一种光电材料已展现出独特优势。然而，在实际应用中，其稳定性和光电性能对环境条件表现出显著的敏感性。此外，CPB的合成通常涉及复杂的程序以及对实验环境的严格要求，导致产率较低。在本研究中，我们采用水相合成方法将锶掺入CPB中，旨在提高钙钛矿在水溶液中的长期稳定性。并且预期引入锶（Sr）会改善钙钛矿的光致发光性能。结果表明，合成的钙钛矿在水溶液中可保持稳定长达264小时，其光致发光强度增强且由于锶的掺入出现蓝移。这种方法显著提高了CPB钙钛矿在光电子材料和器件应用中的潜在价值。
