**Acknowledgements**

transfer pathways, including those along and across a CNT, between CNTs, inside a multiwall CNT, between organic molecules and CNTs, and between the donor and acceptor moieties of an organic matrix molecule. The data presented in **Figure 1a** and **b** show the possible mechanism of charge carriers moving in the fullerene-, carbon nanotubes, and relative nano-objects-doped organic materials. Moreover, the bio-objects based on DNA can be added to this consideration. Some theoretical and experimental results about the process shown in **Figure 1** have been previously presented in the papers [8–15]. It should be remarked that the polarizability of the sensitized organic composites is larger than the one for the pure polymer or the liquid crystal matrix

The basic features of carbon nanotubes are regarded to their high conductivity, strong hardness of their C─C bonds, complicated and unique mechanisms of charge carrier moving, and large surface energy [16–22]. Moreover, the CNTs refractive index *n* is so small, namely, it is placed in the range of 1.05–1.1. Different types of the optical materials, especially inorganic ones, can be treated by CDV, PDV, laser ablation, laser oriented deposition, etc. technical methods, to deposit the CNTs on the materials surfaces in order to develop the novel coatings. Indeed, it can provoke the change of the refractivity, spectral, mechanical, and wetting phenomena of the composites. Analytical and quantum chemical simulations have supported the experimental results. Some accent has been given to form the covalent bonding between the atoms of carbon nanotubes and near-surface atoms of the matrix materials, see **Figure 2**. It provokes the dramatic increase of the transparency, mechanical hardness, laser strength, wetting angle, etc. parameters [23–27]. In the current "Fullerenes and relative materials" book, namely eight chapters are placed. They are devoted to study the fullerenes C60 and C70, as well as the polymeric phase of fullerenes and their derivatives under high pressure and high temperature. The interesting results are presented about the possibility to encapsulate of 3–10 nitrogen atoms into the C70 cage.

**Figure 1.** The possible mechanisms of CTC formation in the nano- and bio-objects-doped conjugated organics (a) with

the selection of possible charge transfer on the CNTs basis (b).

due to the formation of the larger dipole moment under the sensitization process.

2 Fullerenes and Relative Materials - Properties and Applications

The editor would like to thank all authors of the chapters presented, reviewers and all who have helped to prepare this book. The editor would like to acknowledge to Mr. Slobodan Momcilovic, Publishing Process Manager, InTech Publisher, Croatia for his good and continued cooperation.
