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In the past five years, perovskite solar cells (PSCs) based on organometal halide perovskite have exhibited extraordinary photovoltaic (PV) performance. However, the PV measurements of PSCs have been widely recognized to depend on voltage scanning condition (hysteretic current density-voltage [J-V] behavior), as well as on voltage treatment history. In this(More)
Eight intact LTR retrotransposons (Nbr1-Nbr8) have been previously characterized from the genome of Nosema bombycis, a eukaryotic parasite with a compact and reduced genome. Here we describe six novel transcribed Nbr elements (Nbr9-Nbr14) identified through either cDNA library or RT-PCR. Like previously determined ones, all of them belong to the Ty3/Gypsy(More)
High-resolution in situ autonomous visual indication of mechanical damage is achieved through a microcapsule-based polymeric material system. Upon mechanical damage, ruptured microcapsules release a liquid indicator molecule. A sharp color change from light yellow to bright red is triggered when the liberated indicator 2',7'-dichlorofluorescein reacts with(More)
Microscopic damage inevitably leads to failure in polymers and composite materials, but it is difficult to detect without the aid of specialized equipment. The ability to enhance the detection of small-scale damage prior to catastrophic material failure is important for improving the safety and reliability of critical engineering components, while(More)
Porous ceramics are promising candidates for a variety of applications, including separation membranes, catalyst supports, tissue engineering scaffolds, energy storage devices, and microelectronics. We describe a novel method for creating porous ceramics with controllable specific surface area and high strength. The fabrication procedure involves(More)
Asymmetric membranes with layered structure have made significant achievements due to their balanced properties and multi-functionalities that come from a combination of multiple layers. However, issues such as delamination and substructure resistance are generated by the intrinsic layered structure. Here, we present a strategy to integrate the traditional(More)
Smart polymeric materials that autonomously indicate mechanically damaged areas are developed by N. R. Sottos and co-workers, as described on page 2189. Microcapsules containing the color-changing indicator are homogeneously dispersed in a polymer matrix. Mechanical damage (e.g., scratch, abrasion, or compression) causes the microcapsules to rupture and(More)
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