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Linear Electro-Optic Modulation in Highly Polarizable Organic Perovskites.
Sun, Meng-Jia; Zheng, Chao; Gao, Yuan; Johnston, Andrew; Najarian, Amin Morteza; Wang, Pei-Xi; Voznyy, Oleksandr; Hoogland, Sjoerd; Sargent, Edward H.
Afiliación
  • Sun MJ; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
  • Zheng C; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
  • Gao Y; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
  • Johnston A; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
  • Najarian AM; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
  • Wang PX; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
  • Voznyy O; Department of Physical and Environmental Sciences, University of Toronto, Scarborough, 1065 Military Trail, Toronto, Ontario, M1C 1A4, Canada.
  • Hoogland S; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
  • Sargent EH; Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada.
Adv Mater ; 33(4): e2006368, 2021 Jan.
Article en En | MEDLINE | ID: mdl-33325577
Electrical-to-optical signal conversion is widely employed in information technology and is implemented using on-chip optical modulators. State-of-the-art modulator technologies are incompatible with silicon manufacturing techniques: inorganic nonlinear crystals such as LiNbO3 are integrated with silicon photonic chips only using complex approaches, and hybrid silicon-LiNbO3 optical modulators show either low bandwidth or high operating voltage. Organic perovskites are solution-processed materials readily integrated with silicon photonics; and organic molecules embedded within the perovskite scaffold allow in principle for high polarizability. However, it is found that the large molecules required for high polarizability also require an increase of the size of the perovskite cavity: specifically, using the highly polarizable DR2+ (R = H, F, Cl) in the A site necessitates the exploration of new X-site options. Only by introducing BF4 - as the X-site molecule is it possible to synthesize (DCl)(NH4 )(BF4 )3 , a material exhibiting a linear EO coefficient of 20 pm V-1 , which is 10 times higher than that of metal halide perovskites and is a 1.5 fold enhancement compared to reported organic perovskites. The EO response of the organic perovskite approaches that of LiNbO3 (reff  ≈ 30 pm V-1 ) and highlights the promise of rationally designed organic perovskites for use in efficient EO modulators.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2021 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Adv Mater Asunto de la revista: BIOFISICA / QUIMICA Año: 2021 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Alemania