Dual Excitation Transient Photocurrent Measurement for Charge Transfer Studies in Nanocarbon Hybrids and Composites

A new technique, dual excitation transient photocurrent measurement (DETPM), which enables to deconvolute intrinsic photoresponse of nanocarbons from interfacial charge transfer processes in nanocarbon-inorganic hybrids and composites, is reported. The technique can be extended to other nanocarbon-based systems with a wide range of semiconductors and allows quantitative analysis of the charge transfer process.