Solution synthesis of large-scale, high-sensitivity ZnO/Si hierarchical nanoheterostructure photodetectors.
This Communication reports a low-cost solution fabrication of wafer-scale ZnO/Si branched nanowire heterostructures and their high photodetection sensitivity, with an ON/OFF ratio larger than 250 and a peak photoresponsivity of 12.8 mA/W at 900 nm. This reported unique 3D branched nanowire structure offers a generic approach for the integration of new functional materials for photodetection and photovoltaic applications.
Department of Electrical and Computer Engineering, University of California-San Diego, La Jolla, California 92093, United States.
Ke
K
Sun
Yi
Y
Jing
Namseok
N
Park
Chun
C
Li
Yoshio
Y
Bando
Deli
D
Wang