SYNTHESIS OF PBS (LEAD SULFID) QUANTUM DOTS (QDS) WITH HOT INJECTION METHOD

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MAZLOUM ARDAKANI M.; YAVARI M.; KHOSHROO A.R.

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Seminar: IRANIAN CHEMISTRY CONGRESS
Year:2013 | Issue:16

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Title

SYNTHESIS OF PBS (LEAD SULFID) QUANTUM DOTS (QDS) WITH HOT INJECTION METHOD

Author(s)

MAZLOUM ARDAKANI M. | YAVARI M. | KHOSHROO A.R. | Issue Writer Certificate

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Abstract

QUANTUM DOTS (QDS) ARE TINY PARTICLES OF SEMI-CONDUCTORS THAT ARE EASY AND CHEAP TO PRODUCE AND CAN BE USED IN SOLAR CELLS TO CONDUCT THE ELECTRONS [1]. QUANTUM DOTS ARE NOT ONLY COST-EFFECTIVE, BUT ARE ALSO VERSATILE, HIGHLY-EFFICIENT IN CONDUCTING AN ELECTRICAL CURRENT, AND ARE AN ETHICAL OPTION FOR THE NEXT GENERATION OF SOLAR CELLS.IN RECENT YEARS, INORGANIC SEMICONDUCTOR NANOCRYSTALS (ALSO KNOWN AS QUANTUM DOTS, QDS) HAVE BEEN FOUND TO BE PROMISING FOR NEXT GENERATION SOLAR CELL [2-3]. LEAD CHALCOGENIDES (PBS, PBSE AND PBTE) AND THEIR ALLOYS HAVEBEEN THE SUBJECT OF CONSIDERABLE RESEARCH DUE TO THE TECHNOLOGICALIMPORTANCE OF THESE MATERIALS, IN CRYSTALLINE AND POLYCRYSTALLINEFORMS. LEAD CHALCOGENIDES HAVE MUCH IN COMMON IN THEIR PHYSICOCHEMICAL PROPERTIES: THEY ARE ISOMORPHOUS, HAVE THE SAME TYPEOF CHEMICAL BONDING, CAN BE PREPARED BY SIMILAR METHODS, HAVESIMILAR PHASE DIAGRAMS, AND CAN BE DOPED IN A SIMILAR MANNER. FOR NON-WATER-SOLUBLE COLLOIDAL PBS QDS, THE HOT-INJECTION APPROACH REPORTED BY HINES AND SCHOLES [4] SEEMS TO BE THE BEST TO ENGINEER HIGH-QUALITY QD ENSEMBLES. THIS HOT-INJECTION METHOD WAS CONDUCTED BY HEATING A MIXTURE OF LEAD OXIDE (PBO) AND OLEIC ACID (OA, AS CAPPING LIGANDS) IN OCTADECENE (ODE) AT 100OC UNDER AR FOR ONE HOUR FOLLOWED BY THE INJECTION OF A SOLUTION OF (TMS)2S AT 90OC. AFTER THE HOT INJECTION, THE GROWTH WAS KEPT EITHER AT 80OC OR ROOM TEMPERATURE. THE PRODUCTS WERE CENTRIFUGED AND THE MIXTURE OF PBS NANOCRYSTALS AND UNREACTED LEAD OLEATE WERE COLLECTED.

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APA: Copy

MAZLOUM ARDAKANI, M., YAVARI, M., & KHOSHROO, A.R.. (2013). SYNTHESIS OF PBS (LEAD SULFID) QUANTUM DOTS (QDS) WITH HOT INJECTION METHOD. IRANIAN CHEMISTRY CONGRESS. SID. https://sid.ir/paper/915490/en

Vancouver: Copy

MAZLOUM ARDAKANI M., YAVARI M., KHOSHROO A.R.. SYNTHESIS OF PBS (LEAD SULFID) QUANTUM DOTS (QDS) WITH HOT INJECTION METHOD. 2013. Available from: https://sid.ir/paper/915490/en

IEEE: Copy

M. MAZLOUM ARDAKANI, M. YAVARI, and A.R. KHOSHROO, “SYNTHESIS OF PBS (LEAD SULFID) QUANTUM DOTS (QDS) WITH HOT INJECTION METHOD,” presented at the IRANIAN CHEMISTRY CONGRESS. 2013, [Online]. Available: https://sid.ir/paper/915490/en

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