"2014-04-07+02:00"^^ . "2015-02-09+01:00"^^ . . . . . . " Quantum dots" . " Intermediate band" . . " Semiconductors" . "Sol\u00E1rn\u00ED \u010Dl\u00E1nky s vlo\u017Een\u00FDm p\u00E1sem teoreticky nab\u00EDzej\u00ED zv\u00FD\u0161en\u00ED \u00FA\u010Dinnosti ve srovn\u00E1n\u00ED s \u010Dl\u00E1nky s jedn\u00EDm p\u0159echodem. V r\u00E1mci tohoto projektu bych cht\u011Bl p\u0159ipravovat sol\u00E1rn\u00ED \u010Dl\u00E1nky s vlo\u017Een\u00FDm p\u00E1sem pomoc\u00ED technologie MOVPE na GaAs substr\u00E1tech. Vlo\u017Een\u00FD p\u00E1s bude tvo\u0159en n\u011Bkolika typy struktur s kvantov\u00FDmi te\u010Dkami s d\u016Frazem na struktury s uspo\u0159\u00E1d\u00E1n\u00ED p\u00E1s\u016F typu II. V kvantov\u00FDch te\u010Dk\u00E1ch typu II doch\u00E1z\u00ED k rychl\u00E9mu odd\u011Blen\u00ED nosi\u010D\u016F n\u00E1boje, a t\u00EDm k prodlou\u017Een\u00ED jejich doby \u017Eivota a zlep\u0161en\u00ED extrakce n\u00E1boje v t\u011Bchto struktur\u00E1ch, co\u017E je velmi v\u00FDhodn\u00E9 pro jejich aplikace v sol\u00E1rn\u00EDch \u010Dl\u00E1nc\u00EDch. Pro zv\u00FD\u0161en\u00ED absorpce sv\u011Btla budou navr\u017Eeny nov\u00E9 struktury typu II s vertik\u00E1ln\u011B uspo\u0159\u00E1dan\u00FDmi kvantov\u00FDmi te\u010Dkami kombinuj\u00EDc\u00EDmi v jednom p\u00E1su kvantov\u00E9 te\u010Dky z odli\u0161n\u00FDch materi\u00E1l\u016F. Strukturn\u00ED vlastnosti sol\u00E1rn\u00EDch \u010Dl\u00E1nk\u016F budou vhodn\u011B lad\u011Bny s c\u00EDlem zv\u00FD\u0161it jejich \u00FA\u010Dinnost." . "Sol\u00E1rn\u00ED \u010Dl\u00E1nky s vlo\u017Een\u00FDm p\u00E1sem" . "Intermediate band solar cell theoretically offer a promising way to significantly increase cell efficiency compared to a single-junction solar cell. In the frame of this project I would like to prepare intermediate solar cell devices by MOVPE technology on GaAs substrates. Intermediate band will be created by several types of quantum dot structures with emphasis on structures with type-II band alignment. Type-II QD properties such as the charge separation and related long radiative life time improves charge extraction in these structures and makes them very suitable for solar cell applications. To increase light absorption I propose new type II vertically aligned QD structures combing in one stack QDs from different materials. The structural properties of the solar cells will be tuned to increase its efficiency."@en . . . "Solar cells" . "GP14-21285P" . "2014-01-01+01:00"^^ . . . . . . "Intermediate band solar cells"@en . . "1"^^ . . "0"^^ . "2016-12-31+01:00"^^ . "Solar cells, Semiconductors, Intermediate band, Quantum dots, Epitaxy"@en . "0"^^ . . "0"^^ . "http://www.isvav.cz/projectDetail.do?rowId=GP14-21285P"^^ . . . "0"^^ .