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Lead zirconate titanate (PZT) thin films deposited on Pt electrode and Pb1+x(Zr0.52,Ti0.48)O3(x = 0.10, 0.15, 0.25, 0.30) buffer layer have been prepared by sol-gel methods to investigate the effects of lead content in the buffer layer on crystalline orientation, electric and fatigue properties of PZT films. XRD and SEM showed that all films exhibited dense perovskite structure with (100) preferential orientation. The maximum dielectric constant (1571 at 100 Hz) was obtained in the PZT film with buffer layer containing 25% excess lead, which increased by 42.5% compared with the film without buffer layer. Fatigue resistance was improved by introducing buffer layer. [ABSTRACT FROM AUTHOR]

Berchemiella wilsonii (Rhamnaceae) is an endangered endemic tree to China. Here, the chloroplast genome was characterized by next-generation Illumina paired-end sequencing. The complete genome comprised 160,076 bp in length, with an inverted repeat region of 26,514 bp, a small single copy (SSC) region of 18,717 bp, and a large single copy region of 88,331 bp. A total of 132 genes were identified, including 83 protein-coding genes, 37 transfer RNA genes, and eight rRNA genes. The overall GC content of the whole genome was 37.23%. Phylogenetic analysis showed that B. wilsonii was most closely related to Berchemiella berchemiifolia. [ABSTRACT FROM AUTHOR]