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Benefiting from the rapid development on chloride incorporated perovskite materials, nowadays, novel device fabricating techniques have sparked a new vision of ultraviolet photodetectors (UVPDs), which is moving toward higher precision, lower energy consumption, and greater miniaturization. Nevertheless, the natural poor solubility of chloride precursors for perovskites has limited their processability for achieving high‐performance self‐driven photovoltaic‐type UVPDs. Herein, a ball‐milling pretreated single‐source vapor deposition strategy is presented, which can facilely fabricate a pure‐phase CsPbCl3 perovskite film with supermicrometer crystal size and no grain boundaries in the vertical direction. Based on this excellent quality UV harvesting perovskite layer, an optimized self‐driven visible‐blind UVPD exhibits outstanding detection properties, including a superior peak responsivity of 118 mA W−1, a maximum specific detectivity of 6.62 × 1012 Jones, and a wide linear dynamic range of 136 dB, coupled with >1000 h operational durability in air ambient. Most notably, a recorded ultrafast rise/fall response time of 120/820 ns is realized as the fastest responsive perovskite UVPDs to date. In addition, this CsPbCl3 UVPD offers adequate visible‐transparency (>50% average visible transmittance) for a glazing integration by using a transparent back electrode, providing a promising pathway to realize a transparent sensor system for future smart window applications. [ABSTRACT FROM AUTHOR]

Abstract: Polycyclic aromatic hydrocarbons (PAHs) were measured in air particulates, ice particulates, snow particulates and river water samples collected during December 2008 to February 2010 in Tumen river area, Northeast China. The total concentration of 15 PAHs in the air particulates, water, water particulates, and particulates in the ice and snow ranged: 3.2–776 ng m−3, 12.9–383 ng L−1, 19.4–2.10 × 103 ng L−1, 62.8–136 ng L−1 and 9.68 × 103–6.96 × 104 ng g−1, respectively. Elevated PAHs were found in winter season, followed by autumn, and lowest in summer. Seasonal variations of air particulate PAHs well reflected by the local residential heating period, which maybe the main contributive factor for high PAH levels in winter. PAH congeners and principal component analysis of 15 PAH congeners in particulate samples of air, water, snow and ice show similar patterns suggesting common sources of PAHs. Fluorene, phenanthrene and pyrene were found to be dominant compounds. PAHs observed in the air particulates appeared to be strongly related to those in other particulate samples, and atmospheric deposition can be an important factor in the environmental quality of the Tumen river area. Additionally, other meteorological factors such as temperature and CO2 levels affecting PAHs distribution in the atmosphere were discussed. [Copyright &y& Elsevier]