Measurement of light diffusion in ZnO nanowire forests

作者：Versteegh Marijn A M^*; van der Wel Ruben E C; Dijkhuis Jaap I

来源：Applied Physics Letters, 2012, 100(10): 101108.

DOI：10.1063/1.3692741

Optimum design of efficient nanowire solar cells requires better understanding of light diffusion in a nanowire array. Here we demonstrate that our recently developed ultrafast all-optical shutter can be used to directly measure the dwell time of light in a nanowire array. Our measurements on disordered ZnO nanowire arrays, "nanowire forests," indicate that the photon mean free path and the dwell time of light can be well predicted from SEM images.

• 出版日期2012-3-5