**2.3 Model for CNT-based IR bolometers**

This section includes an assessment of the design of bolometer elements using carbon nanotubes as both the IR absorbing material and electrical response material [14]. The aim is to first determine the thermal response of the bolometer absorber, and then establish how the electrical characteristics of the CNT material are altered by changes in temperature following IR absorption. Here the focus is on an absorbing material composed of a CNT film comprising randomly situated CNTs each of 2 nm thickness.
