Controlled energy release based on explosive porous silicon

This paper reports on a novel method for controlled release of huge amount of energy stored in a functionalized porous silicon (PS) on a silicon chip. This is achieved by adjusting the size and the separation distance between locally defined areas of PS. Such an approach allows multiple sequential or single explosions with defined energy outputs. The confinement and sequential explosions were studied for different shapes and sizes of PS areas with different separation distances between them. A critical separation distance between PS sites is found for which the sequential explosions are achieved.