US scientists develop new way to image solar cells in 3D
US-based researchers have developed a new technique to map thin-film solar cells in 3D as they absorb photons. The imaging method uses a highly focused laser beam of infrared photons, which penetrates inside the photovoltaic material, to map optoelectronic dynamics both on and below surface. This would increase solar cell efficiency and help in unveiling more thin-film solar cell materials.