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Current issue

ELEKTRO 6/2020 was released on June 6th 2020. Its digital version will be available on June 24th 2020.

Topic: Electrical machines, drives and power electronics, electromobility

Main Article
New traction power supply technology 25 kV/50 Hz (part 1)

SVĚTLO (Light) 2/2020 was released on March 6th 2020. Its digital version will be available immediately.

Market, business, enterprise
BOOBA in new showroom, which surpassed all expectations
Discourse with Technology of Capital city Prague chairman of management

Day light
Diagram of overshadow for 21st march
Modern methods of gaining dates for processing lighting technology assessment

Organic solar cells with increased transparency and efficiency

8. 3. 2017 | TechXplore | www.techxplore.com

Researchers developed a semi-transparent organic solar cell that achieves better efficiency and transparency than existing ones.

Semi-transparent organic solar cells (OSCs) have potential for providing low-cost, large-area energy conversion devices for various applications such as windows, roof covers and greenhouses. However, it is challenging to achieve semi-transparent OSCs with high power conversion efficiency (PCE) and high transparency at the same time. The average visible transmittance (AVT) of the cell can be increased by decreasing the binary film thickness; however, this goes at the expense of the PCE because less sunlight is absorbed by a thinner layer.

Organic solar cells

In a new study researchers bypassed this tradeoff between transparency and efficiency of OSCs by using a ternary mixture. In addition, they used a flexible and transparent top electrode that was applied via a lamination step. As an advantage, the lamination process is simple and compatible with roll-to-roll systems for OSC production from solution.

Read more at TechXplore

Image Credit: Alexander Colsmann, KIT

-jk-