2,859 publications from this institution
Protected arginine thioacid enables convenient N-acylation with no detectable racemization. We report efficient syntheses of potentially biologically active arginine conjugates and novel arginine-containing di-, tri- and tetrapeptides in good yields without loss of chiral integrity.
The development of a scalable chemical bath deposition (CBD) process facilitates the realization of electron-transporting layers (ETLs) for large-area perovskite solar modules (PSMs). Herein, a method to prepare a uniform and scalable thick Zn<sub>2</sub>SnO<sub>4</sub> ETL by CBD, which yielded high-performance PSMs, is reported. This Zn<sub>2</sub>SnO<sub>4</sub> ETL exhibits excellent electrical properties and enhanced optical transmittance in the visible region. Moreover, the Zn<sub>2</sub>SnO<sub>4</sub> ETL influences the perovskite layer formation, yielding enhanced crystallinity, increased grain size, and a smoother surface, thus facilitating electron extraction and collection from the perovskite to the ETL. Zn<sub>2</sub>SnO<sub>4</sub> thereby yields PSMs with a remarkable photovoltaic performance, low hysteresis index, and high device reproducibility. The champion PSM exhibited a power conversion efficiency (PCE) of 22.59%, being among the highest values published so far. In addition, the CBD Zn<sub>2</sub>SnO<sub>4</sub>-based PSMs exhibit high stability, retaining more than 88% of initial efficiency over 1000 h under continuous illumination. This demonstrates that CBD Zn<sub>2</sub>SnO<sub>4</sub> is an appropriate ETL for high-efficiency PSMs and a viable new process for their industrialization.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.