Organometal halide perovskites are under intense study for use in optoelectronics. Methylammonium and formamidinium lead iodide show impressive performance as photovoltaic materials; a premise that has spurred investigations into light-emitting devices and photodetectors. Herein, the optical and electrical material properties of organometal halide perovskites are reviewed. An overview is given ...

Covalent organic frameworks (COFs) are a novel class of porous crystalline organic materials assembled from molecular building blocks. The construction principles of these materials allow for the design of precisely controllable structures since their chemical and physical properties can be easily tuned through the selection of the building blocks and the linkage motif. Their extraordinary and ...

The development of organic printed electronics has been expanding to a variety of applications and is expected to bring innovations to our future life. Along with this trend, high performance organic materials with cost-efficient fabrication processes and specific features such as thin, light weight, bendable, and low power consumption are required. A variety of organic materials have been inve...

This paper gives an overview of the materials and methods used for fabricating photovoltaic solar cell devices. The technologies discussed include those based on the use of silicon (in the crystalline, multicrystalline, amorphous and micro-crystalline forms), the IIIeV compounds (e.g. gallium arsenide, indium phosphide and gallium antimonide), the polycrystalline compounds (e.g. cadmium telluri...

There is a growing interest in the earth abundant and nontoxic iron disulfide (FeS(2)) photovoltaic materials. Here, we report the synthesis of FeS(2) nanoplates with different spectral features which we have associated with thicknesses and crystallization. The structure and crystalline order of ultrathin FeS(2) nanoplates have a strong influence on the carrier lifetime, electronic and optical ...

Improving the efficiency of organic solar cells (OSCs), which are far less efficient than inorganic semiconductor solar cells, is of paramount importance to the field of polymer photovoltaics. Current state-of-the-art bulk heterojunction (BHJ) OSCs utilize a homogeneous blend of the semiconducting polymer poly(3-hexylthiophene) (P3HT) and the fullerene derivative [6,6]-phenyl C61butyric acid me...

A printed energy harvesting and storage circuit powered by ambient office lighting and its use to power a printed display is reported. The autonomous device is composed of three printed electronic components: an organic photovoltaic module, a carbon-nanotubes-only supercapacitor and an electrochromic display element. Components are fabricated from safe and environmentally friendly materials, an...

The need for more efficient batteries and fuel cells to be used for vehicle propulsion, photovoltaic energy storage, and self-contained power sources has led to increased effort in the development of improved materials with high proton conductivity. In this paper, we outline the utility of neutron scattering methods in conjunction with first-principles total-energy calculations for characterizi...

Providing green energy for human consumption has become a main goal of industry and research in recent decades. Photovoltaic technology is a main candidate for this aim but it requires price reduction and efficiency increase to enable large scale commercialization. To comply with the cost effectiveness, the cells can be made very thin to reduce material consumption and materials with well-estab...

Quaterthiophene Benzobisazole Copolymers for Photovoltaic Cells: Effect of Heteroatom Placement and Substitution on the Optical and Electronic Properties Achala Bhuwalka, Jared F. Mike, Meng He, Jeremy J. Intemann, Toby Nelson, Monique D. Ewan, Robert A. Roggers, Zhiqun Lin, and Malika Jeffries-EL* Department of Chemistry, Iowa State University, Ames Iowa 50011, United States Department of Mate...