About event
The electronic properties of SWCNTs are intrinsically dependent on their structure, making a synthesis method which provides a narrow diameter distribution very attractive. Additionally, these properties can be tuned through the incorporation of heteroatoms. In this context, we have shown that using Tri-isopropyl Borate as C and B feedstock in a HV-CVD system, the synthesis results are consistently small diameter SWCNTs with a narrow distribution, almost regardless the type of catalyst, over a temperature range of 300 ° C.
Thus, the properties of the final product are mainly determined by the feedstock. The material has been studied using Raman spectroscopy, optical absorbance and photoluminescence to understand the diameter distribution, quality and optical and electronic properties of the synthesized SWCNTs. These measurements provide deeper insights into the impact of low boron doping on the electronic structure, enabling the chemical modulation of the properties of SWCNTs, which could potentially eliminate the need for the synthesis of single-chirality samples.
