Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University Linz, Altenbergerstraße 69, 4040, Linz, Austria.
Faculty of Chemistry, Materials Research Centre, Brno University of Technology, Purkyňova 118, 612 00, Brno, Czech Republic.
Sci Rep. 2019 Sep 10;9(1):12966. doi: 10.1038/s41598-019-49643-7.
Combining the unique properties of peptides as versatile tools for nano- and biotechnology with lead halide perovskite nanoparticles can bring exceptional opportunities for the development of optoelectronics, photonics, and bioelectronics. As a first step towards this challenge sub 10 nm methylammonium lead bromide perovskite colloidal nanoparticles have been synthetizes using commercial cyclic peptide Cyclo(RGDFK), containing 5 amino acids, as a surface stabilizer. Perovskite nanoparticles passivated with Cyclo(RGDFK) possess charge transfer from the perovskite core to the peptide shell, resulting in lower photoluminescence quantum yields, which however opens a path for the application where charge transfer is favorable.
将肽作为纳米和生物技术的多功能工具的独特性质与卤化铅钙钛矿纳米粒子相结合，可以为光电学、光子学和生物电子学的发展带来特殊的机会。作为应对这一挑战的第一步，我们使用含有 5 个氨基酸的商业环肽 Cyclo(RGDFK)作为表面稳定剂，合成了亚 10nm 的甲脒溴化铅钙钛矿胶体纳米粒子。用 Cyclo(RGDFK)钝化的钙钛矿纳米粒子具有从钙钛矿核到肽壳的电荷转移，导致光致发光量子产率降低，但这为有利于电荷转移的应用开辟了道路。
