All Outputs (46)

Photopatterning, Etching, and Derivatization of Self-Assembled Monolayers of Phosphonic Acids on the Native Oxide of Titanium (2009)
Journal Article
Tizazu, G., Adawi, A. M., Leggett, G. J., & Lidzey, D. G. (2009). Photopatterning, Etching, and Derivatization of Self-Assembled Monolayers of Phosphonic Acids on the Native Oxide of Titanium. Langmuir : the ACS journal of surfaces and colloids, 25(18), 10746-10753. https://doi.org/10.1021/la901271c

Electron-hole pair formation at titania surfaces leads to the formation of reactive species that degrade organic materials. Here, we describe the degradation of self-assembled monolayers of alkylphosphonic acids on the native oxide of titanium follow... Read More about Photopatterning, Etching, and Derivatization of Self-Assembled Monolayers of Phosphonic Acids on the Native Oxide of Titanium.

Single molecule spectroscopy of red- and green-emitting fluorene-based copolymers (2009)
Journal Article
Khalil, G. E., Adawi, A. M., Fox, A. M., Iraqi, A., & Lidzey, D. G. (2009). Single molecule spectroscopy of red- and green-emitting fluorene-based copolymers. The Journal of chemical physics, 130(4), 044903. https://doi.org/10.1063/1.3054142

Single molecule fluorescence spectroscopy is used to study the optical properties of two polymers: a fluorene-based statistical copolymer that contains a low fraction (10%) of a red-emitting thiophene group, and the green-emitting polymer poly(9,9-di... Read More about Single molecule spectroscopy of red- and green-emitting fluorene-based copolymers.

Optical nanolithography using a scanning near-field probe with an integrated light source (2008)
Journal Article
Kingsley, J. W., Ray, S. K., Adawi, A. M., Leggett, G. J., & Lidzey, D. G. (2008). Optical nanolithography using a scanning near-field probe with an integrated light source. Applied physics letters, 93(21), Article 213103. https://doi.org/10.1063/1.3032912

An ultracompact near-field optical probe is described that is based on a single, integrated assembly consisting of a gallium nitride (GaN) light-emitting diode (LED), a microlens, and a cantilever assembly containing a hollow pyramidal probe with a s... Read More about Optical nanolithography using a scanning near-field probe with an integrated light source.

A design for an optical-nanocavity optimized for use with surface-bound light-emitting materials (2008)
Journal Article
Adawi, A. M., & Lidzey, D. G. (2008). A design for an optical-nanocavity optimized for use with surface-bound light-emitting materials. New Journal of Physics, 10(6), 065011. https://doi.org/10.1088/1367-2630/10/6/065011

We model the modification in the spontaneous emission (SE) rate of an emitting dipole placed on the surface of a two-dimensional (2D) L3 optical nanocavity using 3D FDTD calculations. We show that by introducing a concave region into the cavity-surfa... Read More about A design for an optical-nanocavity optimized for use with surface-bound light-emitting materials.

Observation of the β-phase in two short-chain oligofluorenes (2008)
Journal Article
Tsoi, W. C., Charas, A., Cadby, A. J., Khalil, G., Adawi, A. M., Iraqi, A., …Lidzey, D. G. (2008). Observation of the β-phase in two short-chain oligofluorenes. Advanced Functional Materials, 18(4), 600-606. https://doi.org/10.1002/adfm.200700530

The polymer poly(9,9-dioctylfluorene) (PF8) can be driven into a morphological form termed the β-phase that has enhanced planarity and increased structural rigidity. We show that the β-phase can be generated in two different fluorene oligomers; a flu... Read More about Observation of the β-phase in two short-chain oligofluorenes.

Enhancing the radiative decay rate of fluorescent organic molecules using micropillar microcavities and optical nanocavities (2007)
Journal Article
Adawi, A. M., & Lidzey, D. G. (2008). Enhancing the radiative decay rate of fluorescent organic molecules using micropillar microcavities and optical nanocavities. Materials Science and Engineering: B, 149(3), 266-269. https://doi.org/10.1016/j.mseb.2007.10.005

We discuss the enhancement of spontaneous emission of fluorescent organic dyes when placed in micropillar microcavities and also in an optical nanocavity. We show experimentally that an enhancement in the spontaneous-emission rate of 1.78 +/- 0.04 ti... Read More about Enhancing the radiative decay rate of fluorescent organic molecules using micropillar microcavities and optical nanocavities.