Search Results - "Qasim, Malik M"

Formation of physical-gel redox electrolytes through self-assembly of discotic liquid crystals: Applications in dye sensitized solar cells by Khan, Ammar A., Kamarudin, Muhammad A., Qasim, Malik M., Wilkinson, Timothy D.

“…The self-assembly of small molecules into ordered structures is of significant interest in electronic applications due to simpler device fabrication and better…”
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Colorimetric-based detection of TNT explosives using functionalized silica nanoparticles by Idros, Noorhayati, Ho, Man Yi, Pivnenko, Mike, Qasim, Malik M, Xu, Hua, Gu, Zhongze, Chu, Daping

“…This proof-of-concept study proposes a novel sensing mechanism for selective and label-free detection of 2,4,6-trinitrotoluene (TNT). It is realized by surface…”
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Spontaneous induction of the uniform lying helix alignment in bimesogenic liquid crystals for the flexoelectro-optic effect by Gardiner, Damian J., Morris, Stephen M., Hands, Philip J. W., Castles, Flynn, Qasim, Malik M., Kim, Wook-Sung, Seok Choi, Su, Wilkinson, Timothy D., Coles, Harry J.

“…Using in-plane electric fields, the electrical induction of the uniform lying helix (ULH) alignment in chiral nematic liquid crystals is reported. This process…”
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Photonic Nanosensor for Colorimetric Detection of Metal Ions by Yetisen, Ali K, Montelongo, Yunuen, Qasim, Malik M, Butt, Haider, Wilkinson, Timothy D, Monteiro, Michael J, Yun, Seok Hyun

“…The real-time sensing of metal ions at point of care requires integrated sensors with low energy and sample consumption, reversibility, and rapid recovery…”
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Reusable, Robust, and Accurate Laser-Generated Photonic Nanosensor by Yetisen, Ali K, Montelongo, Yunuen, da Cruz Vasconcellos, Fernando, Martinez-Hurtado, J.L, Neupane, Sankalpa, Butt, Haider, Qasim, Malik M, Blyth, Jeffrey, Burling, Keith, Carmody, J. Bryan, Evans, Mark, Wilkinson, Timothy D, Kubota, Lauro T, Monteiro, Michael J, Lowe, Christopher R

“…Developing noninvasive and accurate diagnostics that are easily manufactured, robust, and reusable will provide monitoring of high-risk individuals in any…”
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Electrically Switchable and Permanently Stable Light Scattering Modes by Dynamic Fingerprint Chiral Textures by Cheng, Ko-Ting, Lee, Po-Yi, Qasim, Malik M., Liu, Cheng-Kai, Cheng, Wen-Fa, Wilkinson, Timothy D.

“…Negative dielectric nematic liquid crystals (LCs) doped with two azobenzene materials provide electrically switchable and permanently stable scattering mode…”
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Composite liquid crystal-polymer electrolytes in dye-sensitised solar cells: effects of mesophase alkyl chain length by Kamarudin, Muhammad Akmal, Khan, Ammar A., Said, Suhana Mohd, Qasim, Malik M., Wilkinson, Timothy D.

“…The doping of polymer electrolytes (PEs) with liquid crystal (LC) materials has been shown to improve the performance of dye-sensitised solar cells (DSSCs)…”
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Self-assembled liquid crystalline nanotemplates and their incorporation in dye-sensitised solar cells by Kamarudin, Muhammad Akmal, Khan, Ammar A., Williams, Calum, Rughoobur, Girish, Said, Suhana Mohd, Nosheen, Shabeena, Flewitt, Andrew J., Qasim, Malik M., Wilkinson, Timothy D.

“…Liquid junction dye-sensitised solar cells (DSSCs) suffer from solvent evaporation and leakage which limit their large-scale production. Here, we have prepared…”
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Flexoelectric and elastic coefficients of odd and even homologous bimesogens by Atkinson, Katie L, Morris, Stephen M, Castles, Flynn, Qasim, Malik M, Gardiner, Damian J, Coles, Harry J

“…It is known that bimesogenic liquid crystals exhibit a marked "odd-even" effect in the flexoelastic ratio (the effective flexoelectric coefficient to the…”
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Synthesis and reactivity of dimethoxy-functionalised Tröger’s base analogues by Malik, Qasim M., Ijaz, Sadia, Craig, Donald C., Try, Andrew C.

“…Tröger’s base analogues were prepared bearing methoxy groups in the 1,7-, 2,8-, 3,9- or 4,10-positions. These compounds were converted to their dihydroxy…”
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Electrically switchable random to photonic band-edge laser emission in chiral nematic liquid crystals by Morris, Stephen M., Gardiner, Damian J., Hands, Philip J. W., Qasim, Malik M., Wilkinson, Timothy D., White, Ian H., Coles, Harry J.

“…Using a chiral nematic liquid crystal with a negative dielectric anisotropy, it is possible to switch between band-edge laser emission and random laser…”
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Polymer stabilized chiral nematic liquid crystals for fast switching and high contrast electro-optic devices by Gardiner, Damian J., Morris, Stephen M., Castles, Flynn, Qasim, Malik M., Kim, Wook-Sung, Choi, Su Seok, Park, Hyun-Jin, Chung, In-Jae, Coles, Harry J.

“…A fast switching electro-optic device, based upon the in-plane addressing of very short pitch polymer stabilized chiral nematic liquid crystals, is presented…”
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Enhanced reflection from inverse tapered nanocone arrays by Kong, Xiang-Tian, Butt, Haider, Yetisen, Ali K., Kangwanwatana, Chuan, Montelongo, Yunuen, Deng, Sunan, Cruz Vasconcellos, Fernando da, Qasim, Malik M., Wilkinson, Timothy D., Dai, Qing

“…We computationally and experimentally demonstrate enhanced reflection effects displayed by silicon-based inverted nanocone arrays. A 3D finite element model is…”
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Electrically Tunable Scattering from Devitrite–Liquid Crystal Hybrid Devices by Butt, Haider, Yetisen, Ali K., Khan, Ammar A., Knowles, Kevin M., Qasim, Malik M., Yun, Seok Hyun, Wilkinson, Timothy D.

“…Devitrite is normally an unwanted crystalline impurity in the soda‐lime‐silica glass making process. Thin needles formed by heterogeneous nucleation of…”
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Increasing the flexoelastic ratio of liquid crystals using highly fluorinated ester-linked bimesogens by Atkinson, Katie L, Morris, Stephen M, Qasim, Malik M, Castles, Flynn, Gardiner, Damian J, Hands, Philip J W, Choi, Su Seok, Kim, Wook-Sung, Coles, Harry J

“…We present experimental results on the bulk flexoelectric coefficients e and effective elastic coefficients K of non-symmetric bimesogenic liquid crystals when…”
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Reaction of Tröger’s base analogues with Vilsmeier reagents by Malik, Qasim M., Mahon, Andrew B., Craig, Donald C., Try, Andrew C.

“…As part of a program aimed at introducing functionality onto the Tröger’s base framework post-synthesis, we investigated the formylation reaction of Tröger’s…”
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Liquid crystalline chromophores for photonic band-edge laser devices by Morris, Stephen M., Qasim, Malik M., Gardiner, Damian J., Hands, Philip J.W., Castles, Flynn, Tu, Gouli, Huck, Wilhelm T.S., Friend, Richard H., Coles, Harry J.

“…► Liquid crystalline chromophores have been synthesized for photonic band-edge laser devices. ► These are bimesogenic compounds consisting of the repeating…”
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Homologous binary mixtures and improved hole conduction of self-assembled discotic liquid crystals by Khan, Ammar A., Rughoobur, Girish, Kamarudin, Muhammad A., Sepe, Alessandro, Dolan, James A., Flewitt, Andrew J., Qasim, Malik M., Wilkinson, Timothy D.

“…Discotic liquid crystals (DLCs) are considered promising materials for organo-electronic applications. Columnar alignment of DLCs leads to anisotropic charge…”
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Improving the stability of organosiloxane smectic A liquid crystal random lasers using redox dopants by Khan, Ammar A., Morris, Stephen M., Gardiner, Damian J., Qasim, Malik M., Wilkinson, Timothy D., Coles, Harry J.

“…•Light-scattering devices based on binary mixtures of smectic A and nematic LC.•Induced clear state requires less applied electric filed for high dielectric…”
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Ultra-fast-switching flexoelectric liquid-crystal display with high contrast by Castles, Flynn, Morris, Stephen M., Gardiner, Damian J., Malik, Qasim M., Coles, Harry J.

“…— The flexoelectro‐optic effect provides a fast‐switching mechanism (0.01–0.1 msec), suitable for use in field‐sequential‐color full‐motion‐video displays. An…”
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