English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/164818
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Polymer:Fullerene Bimolecular Crystals for Near‐Infrared Spectroscopic Photodetectors

AutorZheng, Tang; Sánchez Díaz, Antonio; Campoy Quiles, Mariano ; Vandewal, Koen
Palabras claveBimolecular crystals
Cavity photodetectors
Miniature spectrometers
Tunable spectra
Wavelength selectivity
Fecha de publicación6-sep-2017
EditorWiley-VCH
CitaciónAdvanced Materials 29(33): 1702184 (2017)
ResumenSpectroscopic photodetection is a powerful tool in disciplines such as medical diagnosis, industrial process monitoring, or agriculture. However, its application in novel fields, including wearable and biointegrated electronics, is hampered by the use of bulky dispersive optics. Here, solution‐processed organic donor–acceptor blends are employed in a resonant optical cavity device architecture for wavelength‐tunable photodetection. While conventional photodetectors respond to above‐gap excitation, the cavity device exploits weak subgap absorption of intermolecular charge‐transfer states of the intercalating poly[2,5‐bis(3‐tetradecylthiophen‐2‐yl)thieno[3,2‐b]thiophene] (PBTTT):[6,6]‐phenyl‐C61‐butyric acid methyl ester (PCBM) bimolecular crystal. This enables a highly wavelength selective, near‐infrared photoresponse with a spectral resolution down to 14 nm, as well as dark currents and detectivities comparable with commercial inorganic photodetectors. Based on this concept, a miniaturized spectrophotometer, comprising an array of narrowband cavity photodetectors, is fabricated by using a blade‐coated PBTTT:PCBM thin film with a thickness gradient. As an application example, a measurement of the transmittance spectrum of water by this device is demonstrated.
DescripciónZheng, Tang et al.
Versión del editorhttp://dx.doi.org/10.1002/adma.201702184
URIhttp://hdl.handle.net/10261/164818
ISSN0935-9648
E-ISSN1521-4095
Aparece en las colecciones: (ICMAB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Tang_AdvancMat_2017_postrprint.pdf1,78 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.