An approach to the optimal design of p-n heterojunction solar cells using thin film organic semiconductors

Ultrathin Organic Films Grown by Organic Molecular Beam Deposition and Related Techniques

“…It has long been recognized that thin-film OMCs have promise for solar energy conversion due to the potential for very low cost manufacture of solar cells employing such materials . In particular, crystalline organic semiconductors such as the Pc's, perylenes and other relatively low molecular weight polyacenes have been identified as having the greatest potential for this purpose due to their ability to be controllably deposited via OMBD and other more conventional vacuum techniques, their relatively high purity, environmental robustness, and high mobilities (hence relatively low series resistance). ,,− More recently, solar cells employing these materials in combination with C 60 have also been explored , for many of the same reasons. In spite of considerable research in both bilayer organic p−n junction and Schottky barrier crystalline organic photovoltaic (PV) cells over the past 20 years, however, there has yet to be a demonstration of a cell whose characteristics are adequate for even the most undemanding of solar conversion applications .…”

Supramolecular Organization and Charge Transport Properties of Self-Assembled π−π Stacks of Perylene Diimide Dyes

“…Due to numerous advantages such as their commercial availability, low cost, or air-stability, columnar crystals and liquid crystals (CLCs) based on perylene tetracarboxylic diimides (PDIs) derivatives have stimulated a large number of studies in the past ten years. These have focused on the use of PDIs as electron-accepting materials in light-emitting diodes − or charge transport building blocks in solar cells − or organic field-effects transistors. − In such materials, disk-like aromatic molecules form π-stacked columnar aggregates, in which the overlap of the π-orbitals of adjacent units yields a one-dimensional pathway for charge migration, , leading to charge carrier mobilities comparable to those in amorphous silicon. , Moreover, their electronic, optical, and charge transport properties can be tuned over a wide range by changing the aromatic core and the nature and shape of the side groups. ,− …”

Optical and photoelectric properties of copper phthalocyanine/cadmium sulphide multilayer films prepared by vacuum sublimation

“…A heteromultilayer film is one possibility for realizing this kind of system. Organic/inorganic composites are expected to be used in information storage [4], gas sensors [5], thin-film field-effect transistors [6], solar cells, and electrophotographic systems [7].…”