Inkjet-printed batteries bring us closer to smart objects

The race is on to develop everyday objects that have network connectivity and can send and receive data: the so-called 'Internet of Things'. But this requires flexible, lightweight and thin rechargeable power sources. Currently ...

Inkjet printing process for kesterite solar cells

A research team at HZB has developed an inkjet printing technology to produce kesterite thin film absorbers (CZTSSe). Based on the inkjet-printed absorbers, solar cells with total area conversion efficiency of up to 6.4% ...

An air cushion for falling droplets

Falling droplets bounce as many as fifteen times before they come to rest on a flat surface. In the past, it was believed that this phenomenon is limited to water drops on superhydrophobic surfaces.

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