Optoelectronic devices, low temperature preparation methods, and improved electron transport layers

Mohamed Samir Eita (Inventor), Labban Abdulrahman El (Inventor), Anwar Usman (Inventor), Pierre Beaujuge (Inventor), Omar F. Mohammed (Inventor)

Research output: Patent

Abstract

An optoelectronic device such as a photovoltaic device which has at least one layer, such as an electron transport layer, which comprises a plurality of alternating, oppositely charged layers including metal oxide layers. The metal oxide can be zinc oxide. The plurality of layers can be prepared by layer-by-layer processing in which alternating layers are built up step-by-step due to electrostatic attraction. The efficiency of the device can be increased by this processing method compared to a comparable method like sputtering. The number of layers can be controlled to improve device efficiency. Aqueous solutions can be used which is environmentally friendly. Annealing can be avoided. A quantum dot layer can be used next to the metal oxide layer to form a quantum dot heterojunction solar device.
Original languageEnglish (US)
Patent numberWO 2016120721 A1
StatePublished - Aug 4 2016

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