Chemistry of Materials, Год журнала: 2024, Номер 36(22), С. 11139 - 11149

Опубликована: Ноя. 13, 2024

In recent years, there has been a concerted effort in developing narrow band gap semiconductors that exhibit excellent physical properties and optoelectronic performance, as well enhanced solution processability structural stability. Herein, we report new series of copper(I)iodide-based ionic hybrid with gaps (∼1.5–1.8 eV). These compounds are systematically designed by using pyrazine derivatives cationic ligands various 1D-CumIn chains anionic inorganic motifs to form one-dimensional (1D) structures. They demonstrate high optical absorption coefficients, decent electrical conductivity, air/moisture/thermal stability, superb processability, enabling the fabrication high-quality thin films via simple processes. Additionally, have carried out comprehensive photoelectron spectroscopic study on highly orientated film samples selected experimentally verify, for first time, photoexcitation process such materials involves an anion-to-cation through-space charge transfer (TSCT), consistent calculated electronic Overall, these CuI-based define subclass low-cost, stable, efficient light-absorbing promising applications optoelectronics.

Язык: Английский