Kehang Cui

Direct and Dry Deposited Single-Walled Carbon Nanotube Films Doped with MoOx as Electron-Blocking Transparent Electrodes for Flexible Organic Solar Cells

UNLABELLED Organic solar cells have been regarded as a promising electrical energy source. Transparent and conductive carbon nanotube film offers an alternative to commonly used ITO in photovoltaics with superior flexibility. This communication reports carbon nanotube-based indium-free organic solar cells and their flexible application. Direct and dry deposited carbon nanotube film doped with MoO(x) functions as an electron-blocking transparent electrode, and its performance is enhanced further by overcoating with PEDOT PSS. The single-walled carbon nanotube organic solar cell in this work shows a power conversion efficiency of 6.04%. This value is 83% of the leading ITO-based device performance (7.48%). Flexible application shows 3.91% efficiency and is capable of withstanding a severe cyclic flex test.

Carbon Nanotube-Silicon Solar Cells: Improving performance for next-generation energy systems.

The one-dimensional electronic structure of single-walled carbon nanotubes (SWCNTs) provides appealing properties, including excellent optical, electrical, mechanical, and thermal properties. Specifically, for light-harvesting applications, SWCNTs are superior in terms of their wide absorption spectrum ranging from near-infrared to visible wavelength, high electrical conductivity at high transparency, and possible multiple exciton generation. Abundance on Earth and chemical stability mean that a film made of SWCNTs is a very promising candidate for next-generation solar cell applications.

Experimental Investigation of Effective Thermal Conductivity for LHP Wicks

In this study, the effective thermal conductivity (ETC) of sintered loop heat pipe wicks, with pure nickel powders, pure copper powders, Ni-10wt%Cu powders and Ni-20wt%Cu powders were experimentally investigated. The ETC of sintered Ni-Cu wicks is found less than those of sintered pure nickel wick and sintered pure copper wicks. In the same porosity level, addition of copper into nickel will reduce ETC of the sintered Ni-Cu wicks. The sintered Ni-20wt%Cu wick presents the lowest ETC among the tested wick samples. Compared to experimental results, Alexander model can provide a reasonable prediction in some wick samples.Copyright