PAPER Haussener et al. Simulations of the irradiation and temperature dependence of the effi ciency of tandem photoelectrochemical water-splitting systems Simulations of the irradiation and temperature dependence of the efficiency of tandem photoelectrochemical water-splitting systems † The instantaneous efficiency of an operating photoelectrochemical solar-fuel-generator system is a complicate...

The challenge of safe hydrogen storage has limited the practical application of solar-driven photocatalytic water splitting. It is hard to isolate hydrogen from oxygen products during water splitting to avoid unwanted reverse reaction or explosion. Here we propose a multi-layer structure where a carbon nitride is sandwiched between two graphene sheets modified by different functional groups. Fi...

dry areas near the sea can obtain fresh water through solar distillation of saline sea water resources. however, these solar distillation sites produce wastewater as a result of desalination of sea water with high salt concentration. waste must be disposed of with the least effect on the receiving environment (sea, in most cases). initial dilution and its characteristics play important roles in...

A small-scale solar organic Rankine cycle (ORC) is a promising renewable energy-driven power generation technology that can be used in the rural areas of developing countries. A prototype was developed and tested for its performance characteristics under a range of solar source temperatures. The solar ORC system power output was calculated based on the thermal and solar collector efficiency. Th...

Solar-driven conversion of CO2 and plastics into value-added products provides a potential sustainable route towards circular economy, but their simultaneous in an integrated process is challenging. Here we introduce versatile photoelectrochemical platform for that coupled to the reforming plastic. The perovskite-based photocathode enables integration different CO2-reduction catalysts such as m...

The major objective of this study is to develop an integrated orbit, attitude, and structural control system architecture for very large Space Solar Power Satellites (SSPS) in geosynchronous orbit. This study focuses on the 1.2-GW “Abacus” SSPS concept characterized by a 3.2 × 3.2 km solar-array platform, a 500-m diameter microwave beam transmitting antenna, and a 500 × 700 m earth-tracking ref...

We have before us a rather formidable task – we are in need of developing a predictive capability of the space environment of the solar system. Such a capability is required to protect our everincreasing assets in space, and to understand the influence of the Sun on Earth. Such a capability will be essential if we are to send humans forth on long-duration space flights. This is not a problem th...

In this study the geometrical optimization of monolithically integrated solar cells into serially connected solar modules is reported. Based on the experimental determination of electrodes0 sheet and intermittent contact resistances, the overall series resistance of individual solar cells and interconnected solar modules is calculated. Taking a constant photocurrent generation density into acco...