Monolithic Two-Terminal Perovskite/CIS Tandem Solar Cells with Efficiency Approaching 25.

Monolithic two-terminal (2T) perovskite/CuInSe (CIS) tandem solar cells (TSCs) combine the promise of an efficient tandem photovoltaic (PV) technology with the simplicity of an all-thin-film device architecture that is compatible with flexible and lightweight PV. In this work, we present the first-ever 2T perovskite/CIS TSC with a power conversion efficiency (PCE) approaching 25% (23.5% certified, area 0.

High-performance dual-mode ultra-thin broadband CdS/CIGS heterojunction photodetector on steel.

An ultra-thin CdS/CIGS heterojunction photodiode fabricated on steel firstly exhibits dual-mode broadband photodetection from ultraviolet to near infrared spectrum. In the photovoltaic mode, the CIGS photodiode, working as a self-driven photodetector, shows an outstanding photodetection capability (under a light power density of 20 µW cm at 680 nm), reaching a record detectivity of ∼4.4×10 Jones, a low noise equivalent power (NEP) of 0.

Longitudinal ultrasonic vibration assisted guillotining of stacked paper.

Ultrasonic vibration assisted cutting is a complex process with high dynamics. The interaction between cutting tool and workpiece is of key interest to understand the entire process. Experimental investigations are limited by the dynamics of the measurement system, and thus appropriately modeling of the ultrasonic vibration assisted cutting process is essential.

Paediatric short stay unit in a community hospital: effective, efficient and popular.

Objectives: Short stay medicine is a cost-effective and efficient way to manage patients with suitable conditions. Paediatric acute illness and injury are amenable to short stay medicine. Before January 2004, when Maroondah Hospital recommenced inpatient care for children, 700 children were transferred annually to other hospitals.

The increasing problem of motorcycle injuries in children and adolescents.

Objective: To quantify an anecdotally apparent increase in motorcycle-related injuries in children and adolescents across Victoria.

Design, Setting And Participants: Retrospective analysis of paediatric motorcycle injuries (1 July 2000 - 30 June 2004) from a statewide emergency department (ED) database (Victorian Emergency Minimum Dataset [VEMD]) and the Trauma Registry database at the Royal Children's Hospital (RCH), Melbourne.

Main Outcome Measures: Trends in paediatric motorcycle-related injuries over time; patient demographics, circumstances of accidents (on or off road), and injury characteristics, including severity markers.