Electronic and optoelectronic devices, from computers and smart cell phones to solar cells, have become part of our life. Currently, devices with featured circuits of 45 nm in size can be fabricated for commercial use. However, further development based on traditional semiconductor is hindered by the increasing thermal issues and the manufacturing cost. During the last decade, nanocrystals have been widely adopted in various electronic and optoelectronics applications. They provide alternative options in terms of easy processing, low cost, better flexibility, and superior electronic/optoelectronic properties. By taking advantage of the solution-processing technique, self-assembly, and surface engineering, nanocrystals could serve as new building blocks for low-cost manufacturing of flexible and large-area devices. Tunable electronic structure combined with small exciton binding energy, high luminescence efficiency, and low thermal conductivity makes nanocrystals extremely attractive for FET, memory device, solar cell, solid-state lighting and display, photodetector, and lasing applications. Efforts to harness the nanocrystal quantum tunability have led to the successful demonstration of many prototype devices, raising the public awareness to the wide range of solutions that nanotechnology can provide for an efficient energy economy.

This special issue of the Journal of Nanomaterials aims to provide the readers with the latest achievements of nanocrystals in electronic and optoelectronic applications, including the synthesis and engineering of nanocrystals towards the applications, the corresponding device fabrication, and characterization as well as computer modeling. Fundamental studies correlating the optical and electronic properties of the materials to the applications are also highly anticipated. Potential topics include, but are not limited to:

• Synthesis of nanocrystals, fundamental study of optical (absorption, emission, etc.) and electronic (charge mobility, etc.) properties, and performance enhancement by surface functionalization
• Computer modeling and theoretical analysis of nanocrystal properties and applications related to electronics & optoelectronics
• Processing and assembly of nanocrystals for electronic and optoelectronic applications, fabrication, and characterization of the corresponding devices

Before submission authors should carefully read over the journal's Author Guidelines, which are located at http://www.hindawi.com/journals/jnm/guidelines/. Prospective authors should submit an electronic copy of their complete manuscript through the journal Manuscript Tracking System at http://mts.hindawi.com/ according to the following timetable: