Energy & Green Tech

Researchers unveil multi-mode reactions in perovskite solar cells

As a promising photovoltaic material, metal halide perovskite yields high efficiency in solar cells. However, the deep-level traps of minority carriers at the surface of the p-i-n perovskite solar cells can suppress nonradiative ...

Engineering

Passive cooling system could benefit off-grid locations

As the world gets warmer, the use of power-hungry air conditioning systems is projected to increase significantly, putting a strain on existing power grids and bypassing many locations with little or no reliable electric ...

Robotics

Developing a crowd-friendly robotic wheelchair

Robotic wheelchairs may soon be able to move through crowds smoothly and safely. As part of CrowdBot, an EU-funded project, EPFL researchers are exploring the technical, ethical and safety issues related to this kind of technology. ...

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