Surface Engineering of Colloidal Quantum Dots for Organic and Biocompatible Solution-Processable Materials
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Surface Engineering of Colloidal Quantum Dots for Organic and Biocompatible Solution-Processable Materials
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| Creator |
Sharma, -
Shailesh , Narain |
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| Subject |
Applied Physics/Condensed Matter
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| Description |
In the present study, the objective of this work has been two-fold: (i) To render CdSe QDs water-soluble for its possible application in biosensors, ligand-exchange process has been initiated. Here, the surface engineering of CdSe QDs synthesized with different hydrophobic ligands (TOPO/TOP, Oleic acid/TOP) has been done using organic primary aliphatic amine (butyl amine); and (ii) For different applications of hybrid organic MEH-PPV-inorganic CdSe composites in organic electronic devices such as efficient electroluminescent (OLED) and photovoltaic (OPV) devices, a suitable non-ligand purification process has been attempted. Here, the studies of hybrid nanocomposites demonstrate the dominance of mainly energy transfer between host polymer (donors) and guest as-synthesized CdSe nanocrystals (acceptors) for OLED applications and an enhanced charge transfer upon purification of CdSe QDs in their corresponding polymer nanocomposites for OPV applications respectively. The ease of removal of the ligands (TOPO/OA) from the surface of CdSe QDs either through direct ligand-exchange through Butyl-amine or through non-ligand exchange through purification process dictates its role in biosensors and in conjunction with polymer (MEH-PPV) in OLED and OPV devices respectively.
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| Publisher |
Springer Verlag
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| Date |
2017
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/2957/1/Surface%20Engineering%20of%20Colloida.pdf
Sharma, - and Shailesh , Narain (2017) Surface Engineering of Colloidal Quantum Dots for Organic and Biocompatible Solution-Processable Materials. Springer Proceedings in Physics, 178. pp. 57-63. ISSN 0930-8989 |
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| Relation |
http://npl.csircentral.net/2957/
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