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|Title:||Application of NaYF4: Yb, Er upconversion fluorescence nanocrystals for solution-processed near infrared photodetectors||Authors:||Sun, C.-J.
|Issue Date:||2007||Citation:||Sun, C.-J., Xu, Z., Hu, B., Yi, G.S., Chow, G.M., Shen, J. (2007). Application of NaYF4: Yb, Er upconversion fluorescence nanocrystals for solution-processed near infrared photodetectors. Applied Physics Letters 91 (19) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2807841||Abstract:||In an attempt to overcome the technical challenges in the conventional solution-processed near infrared (NIR) photodetectors, we have used NaY F4: Yb, Er upconversion fluorescence nanocrystals to replace the semiconductor quantum dots in conjugated polymers. Under NIR excitation, the NaY F4: Yb, Er nanocrystals emit visible light in the solution-processed NIR photodetectors. The emitted visible light is simultaneously absorbed by the host conjugated polymer to generate photocurrent, which indicates that our approach is applicable to fabricate NIR photodetectors while avoiding the major technical challenges associated with semiconductor quantum dot based NIR photodetectors. © 2007 American Institute of Physics.||Source Title:||Applied Physics Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/86191||ISSN:||00036951||DOI:||10.1063/1.2807841|
|Appears in Collections:||Staff Publications|
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