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Dynamic electric field alignment of metal-organic framework micro- rods (2019)
Journal Article
Reithofer, M. R., Jaafar, A. H., Hall, C. H., Young, A. J., Cheng, F., Young, A. J., …Chin, J. M. (2019). Dynamic electric field alignment of metal-organic framework micro- rods. Journal of the American Chemical Society, 141(33), 12989-12993. https://doi.org/10.1021/jacs.9b06320

Alignment of Metal Organic Framework (MOF) crystals has previously been performed via careful control of oriented MOF growth on substrates, as well as by dynamic magnetic alignment. We show here that microrod crystals of the MOF NU-1000 can also be d... Read More about Dynamic electric field alignment of metal-organic framework micro- rods.

Probing the molecular orientation of a single conjugated polymer via nano-gap SERS (2019)
Journal Article
Marshall, A. R. L., Roberts, M., Gierschner, J., Bouillard, J. G., & Adawi, A. M. (2019). Probing the molecular orientation of a single conjugated polymer via nano-gap SERS. ACS applied polymer materials, 1(5), 1175-1180. https://doi.org/10.1021/acsapm.9b00180

Determining the molecular orientation at the single molecule level is of key importance for a wide range of applica-tions ranging from molecular electronic devices to biomedical applications. In this work Surface-Enhanced Raman Scattering (SERS) was... Read More about Probing the molecular orientation of a single conjugated polymer via nano-gap SERS.

Spectroscopy and single-molecule emission of a fluorene-terthiophene oligomer (2011)
Journal Article
Khalil, G. E., Adawi, A. M., Robinson, B., Cadby, A. J., Tsoi, W. C., Kim, J., …Lidzey, D. G. (2011). Spectroscopy and single-molecule emission of a fluorene-terthiophene oligomer. Journal of Physical Chemistry B, 115(42), (12028-12035). doi:10.1021/jp206368g. ISSN 1520-6106

We study the thiophene-based oligomer poly[2,7-(9,9-bis(2′-ethylhexyl)fluorene)-alt-2,5-terthiophene] (PF3T) in solution and when dispersed at low concentration into a polynorbornene matrix. We find that at high concentration in solution the 0&... Read More about Spectroscopy and single-molecule emission of a fluorene-terthiophene oligomer.

The optical properties of hybrid organic-inorganic L3 nanocavities (2010)
Journal Article
Murshidy, M. M., Adawi, A. M., Fry, P. W., Whittaker, D. M., & Lidzey, D. G. (2010). The optical properties of hybrid organic-inorganic L3 nanocavities. Journal of the Optical Society of America B, 27(2), 215-221. doi:10.1364/JOSAB.27.000215

We report the fabrication of L3 nanocavities defined into a free-standing silicon nitride (SiN) membrane coated with a thin (10 nm) film of fluorescent red-emitting conjugated polymer. We find that structures both with and without the conjugated poly... Read More about The optical properties of hybrid organic-inorganic L3 nanocavities.

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), doi:10.1063/1.3032912. ISSN 0003-6951

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.

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. doi: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). doi:10.1016/j.mseb.2007.10.005. ISSN 0921-5107

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.