Semiconductive nanodiamond is usually obtained by doping foreign elements (nitrogen, boron, etc.) into diamond cores. The doping method requires high power facilities, such as high energy photon/neutron/electron beams, chemical vapor deposition (CVD). These costly equipment limit the application of nanodiamond. In this study, heat annealing is used as an effective alternative method to synthesized semiconductive nanodiamond. 6nm detonation nanodiamond mixing with non-explosive chemical melamine was heated to 500�C under nitrogen gas environment for 2hrs in a furnace. Characterization showed that nitrogen was added into the nanodiamond. The resultant products demonstrates the emittance of blue fluorescence under UV-vis excitation. The up conversion phenomenon was further observed under 600-750nm excitation . This kind of fluorescent nitrogen-detonation nanodiamond (NDND) has lower band gap to make it becomes semiconductive which broadens applications of nanodiamond such as LED device fabrication. Simultaneously, 1-D semiconductive nanodiamond array will provide some orientation effect to make it a more promising material in electrical/electrochemical field. Therefore, the NDND is used as raw material to produce well-order nanodiamond array by a template-based electrophoretic deposition (EPD) method. And the electrochemical property of the array is firstly explored in 1mM potassium ferricyanide (Fe(CN)63-) in this study.

Well-order semiconductive nanodiamond array and its electrochemical property

247th National Meeting (2014)

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