Almost all organisms use carbohydrates as sources of energy. In addition, some carbohydrates serve as structural materials. Carbohydrates are molecules composed of carbon, hydrogen, and oxygen; the ratio of hydrogen atoms to oxygen and carbon atoms is Simple carbohydrates, commonly referred to as sugars, can be monosaccharides if they are composed of single molecules, or disaccharides if they are composed of two molecules.
Essay on Information Technology. Research Paper on Organic Molecules Challenge
Organic field effect transistors OFET and organic photovoltaic cells OPV are two of the most promising technologies need further scientific and technological advancement. Over decades, OFETs and OPVs have been extensively studied using conjugated molecular and polymeric systems and now are considered to be leading technologies in the large area flexible electronics1, 2. Figure 1a shows a typical architecture of a bottom-gate bottom-contact organic field effect transistor OFET. An OFET is composed of three electrodes-source, drain, and gate. A dielectric layer SiO2 , one can act as a gate and bringing these elements into contact with an organic small molecule or polymer semiconductor layer yields a bottom contact field effect transistor3.
Essay/Term paper: Organic molecules challenge
There are now more than ten million organic compounds known by chemists. Many more undoubtedly exist in nature, and organic chemists are continually creating synthesizing new ones. Carbon is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms, and because the carbon atom is just the right, small size to fit in comfortably as parts of very large molecules. Having the atomic number 6, every carbon atom has a total of six electrons.
Sandwich bags, carpets, nylon stockings, stackable chains, milk cartons, etc. They have different chemical compositions different monomer units , different structures, different ways of being fabricated, etc. The electrons in the weak p -bonds can be used to form strong s bonds to other monomer units. The olefin monomers are flat two-dimensional molecules with sp 2 -hybridized carbon atoms. The polymers are three-dimensional molecules in which the carbon atoms are sp 3 hybridized.