Quantum dots as self-referenced optical fibre temperature probes for luminescent chemical sensors

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Jorge, PAS (Autor) Outra; Mayeh, M (Autor) Outra; Benrashid, R (Autor) Outra; Caldas, P (Autor) Outra; Santos, JL (Autor) FCUP; Farahi, F (Autor) Outra

Revista

Título: Measurement Science and Technology

Vol. 17

Páginas: 1032-1038

ISSN: 0957-0233

Editora: Institute of Physics Publishing

Indexação

ISI Web of Knowledge - 49 Citações

Scopus - 56 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

Outras Informações

ID Authenticus: P-004-M1S

DOI: 10.1088/0957-0233/17/5/s16

Abstract (EN): The use of semiconductor nano-particles as temperature probes in luminescence chemical sensing applications is addressed. Temperature changes the intensity, the peak wavelength and the spectral width of the quantum dots luminescent emission in a linear and reversible way. Results are presented that show the feasibility of implementing a self-referenced intensity-based sensor to perform temperature measurements independent of the optical power level in the sensing system. A resolution of 0.3 degrees C was achieved. In addition, it is demonstrated that self-referenced temperature measurements at multiple points could be performed using reflection or transmission based optical fibre configurations.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7