Added organic improves solar efficiency

Towards High-Efficiency Organic Solar Cells: Polymers and Devices Development

Efficiency enhancement in organic solar cells with ferroelectric polymers.

The recombination of electrons and holes in semiconducting polymer-fullerene blends has been identified as a main cause of energy loss in organic photovoltaic devices. Generally, an external bias voltage is required to efficiently separate the electrons and holes and thus prevent their recombination. Here we show that a large, permanent, internal electric field can be ensured by incorporating a...

Increasing organic solar cell efficiency with polymer interlayers.

We demonstrate how organic solar cell efficiency can be increased by introducing a pure polymer interlayer between the PEDOT:PSS layer and the polymer:fullerene blend. We observe an increase in device efficiency with three different material systems over a number of devices. Using both electrical characterization and numerical modeling we show that the increase in efficiency is caused by optica...

Erroneous efficiency reports harm organic solar cell research

The efficiencies of both organic and hybrid (organicinorganic) solar cells have increased markedly in recent years, making them an exciting and commercially valuable prospect. Despite this progress, a literature survey that we have performed suggests that a large number of reported solar cell efficiencies are being incorrectly measured and reported in journals, with the device efficiency being ...

Added Dietary Fat Improves Growth Performance and Feed Efficiency in Growing-finishing Pigs under Commercial Conditions

A total of 480 pigs was used in an experiment conducted in a commercial research facility to determine the influence of fat additions to the growing-finishing diet on pig performance and carcass composition. Adding fat to the diet from 80 to 265 lb increased ADG and F/G by 1 and 2%, respectively, for each 1% added fat. The growth response was greatest during the initial phase of the trial (80 t...