An optoelectronic device is disclosed that can function as an emitter of optical radiation, such as a light-emitting diode (LED), or as a photovoltaic (PV) device that can be used to convert optical radiation into electrical current, such as a photovoltaic solar cell. The optoelectronic device comprises...http://www.google.de/patents/US8088499?utm_source=gb-gplus-sharePatent US8088499 - Optoelectronic device with nanoparticle embedded hole injection/transport layer