IMEC developed all printed solar cells
IMEC is an independent research institute located in Belgium adapter for laptop (Belgium) Leuven (Leuven), in nano-electronics and nano-technology leadership position in the world, but also in the Netherlands, the United States, China and Japan set up an office, with more than 1600 employees, including the Mill and Visiting Fellow, in 2007 the tax revenue for the state about 24 billion euros. They are mainly on the basic sciences to solve the academic and industrial manufacturing process differences between the unique processes, systems technology, patents, groups, and the most advanced equipment. Now they validate the entire solution process of the organic solar cells.
“We developed a method, so that the whole solution process of the organic solar cells can be high-quality electrical contacts, so that the battery has a 3% power conversion efficiency.” IMEC says so. Research labs in Belgium and the use of previously developed for the active layer of organic solar cells sprayed coating technology, “This method is suitable for mass production after the Roll to Roll (roll-to-roll) manufacturing process, so whether it is hard or it could be Torsion of the substrate can be, fast and inexpensive manufacture of large area organic solar cells. “
Metal electrodes formed in the organic semi-discuss physical layer, electrical contact between electrical conductivity must be between 104 and 106S/cm, and has a high stability, has been commercialized by nano-particles of silver ink, Under the use of spray gun spray painted in a nitrogen atmosphere, and then through the 100 ~ 180 ℃ sintering, so that particles melt to form a continuous film. IMEC reference to “the advanced technology can ink-jet printing, or gravure printing means to achieve a large area of, and with volume on the volumes of equipment to complete production.” Process in order to complete the whole solution, the organic solar cells, IMEC presented an inverted The structure is the formation of an electronic collection of the first layer (cathode), and then is the semiconductor layer, and finally coated with the anode. “If the cathode was formed after the semiconductor layer, the electron blocking layer file, you must take the initiative to layer on top of that we can avoid the metal electrode into the damage caused in the course.”
The whole solution process, the stopper layer (usually the use of zinc oxide, ZnO, or titanium dioxide, TiO) formation, bringing the surface morphology, resulting in continuation of the nano-silver particles penetrate, resulting in the conversion efficiency of the battery down. While the anode in this regard due to electric-hole stopper layer (commonly used poly–3,4 - ethylene dioxy thiophene [poly (3,4-ethylenedioxy-thiophene)], poly styrene sulfonic acid [poly (styrenesulfonate)] or both mixed-doped [PEDOT: PSS]) have sufficient thickness, formed in the organic layer on top, you can protect the damage may occur. The silver particles and then sprayed on IBM ThinkPad T40 batterythe anode side can be the whole solution process of the organic solar cells. All the organic materials such as poly (3 - have alkyl thiophene [poly (3-hexyl thiophene), abbreviated as P3HT] as well as 6,6 - D-phenyl-C61 Methyl [(6,6)-phenyl C61-butyric acid methyl ester, referred to as PCBM) can be dissolved in solution and deposited on indium tin oxide glass substrates.
Component of the photoelectric conversion efficiency of about 3%, equivalent to the general use made of the components evaporate, but its short-circuit current is relatively high, greater than 10mA/cm2, when the nano-particles sintering temperature dropped to below 150 ℃, then the You can use the flexible substrates, including poly-naphthalene dicarboxylic acid glycol ester [polyethylene naphthalate, referred to as PEN].