Intricately patterned biosilica obtained from the shell of unicellular algae called diatoms serve as novel templates for fabrication of optoelectronic nanostructures. In this study, the surface of diatom frustules that possessed hierarchical architecture ordered at the micro and nanoscale was coated with a nanostructured polycrystalline cadmium sulphide (CdS) thin film using a chemical bath deposition technique. The CdS thin film was composed of spherical nanoparticles with a diameter of about 75 nm. The CdS nanoparticle thin film imparted new photoluminescent properties to the intricately patterned diatomnanostructure. The imparted photoluminescent properties were dependent on the CdS coverage onto the frustules surface. The intrinsic photoluminescent properties of the frustules were strongly quenched by the deposited CdS. The origin of PL spectra was discussed on the basis of the band theory and native defects. Copyright (C) 2009 Timothy Gutu et al.
Weatherspoon Michael R., Dickerson Matthew B., Wang Guojie, Cai Ye, Shian Samuel, Jones Simon C., Marder Seth R., Sandhage Kenneth H., Thin, Conformal, and Continuous SnO2 Coatings on Three-Dimensional Biosilica Templates through Hydroxy-Group Amplification and Layer-By-Layer Alkoxide Deposition, 10.1002/anie.200701297
Xia Younan, Halas Naomi J., Shape-Controlled Synthesis and Surface Plasmonic Properties of Metallic Nanostructures, 10.1557/mrs2005.96
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Schilling J., White J., Scherer A., Stupian G., Hillebrand R., Gösele U., Three-dimensional macroporous silicon photonic crystal with large photonic band gap, 10.1063/1.1842855
Zhang Genqiang, Zhang Tao, Lu Xiaoli, Wang Wei, Qu Jifeng, Li Xiaoguang, Controlled Synthesis of 3D and 1D Nickel Nanostructures Using an External Magnetic Field Assisted Solution-Phase Approach, 10.1021/jp073075z
Qin Tian, Gutu Timothy, Jiao Jun, Chang Chih-hung, Rorrer Gregory L., Biological Fabrication of Photoluminescent Nanocomb Structures by Metabolic Incorporation of Germanium into the Biosilica of the Diatom Nitzschia frustulum, 10.1021/nn800114q
Sumper M., Brunner E., Learning from Diatoms: Nature's Tools for the Production of Nanostructured Silica, 10.1002/adfm.200500616
Jeffryes Clayton, Gutu Timothy, Jiao Jun, Rorrer Gregory L., Peptide-mediated deposition of nanostructured TiO2 into the periodic structure of diatom biosilica, 10.1557/jmr.2008.0402
Dudley Shannon, Kalem Tugba, Akinc Mufit, Conversion of SiO2 Diatom Frustules to BaTiO3 and SrTiO3, 10.1111/j.1551-2916.2006.01091.x
Losic Dusan, Triani Gerry, Evans Peter J., Atanacio Armand, Mitchell James G., Voelcker Nicolas H., Controlled pore structure modification of diatoms by atomic layer deposition of TiO2, 10.1039/b610188g
Weatherspoon Michael R., Allan Shawn M., Hunt Eden, Cai Ye, Sandhage Kenneth H., Sol-gel synthesis on self-replicating single-cell scaffolds: applying complex chemistries to nature's 3-D nanostructured templates, 10.1039/b409466b
Townley Helen E, Woon Kai Lin, Payne Frank P, White-Cooper Helen, Parker Andrew R, Modification of the physical and optical properties of the frustule of the diatomCoscinodiscus wailesiiby nickel sulfate, 10.1088/0957-4484/18/29/295101
Cai Ye, Allan Shawn M., Sandhage Kenneth H., Zalar Frank M., Three-Dimensional Magnesia-Based Nanocrystal Assemblies Via Low-Temperature Magnesiothermic Reaction of Diatom Microshells, 10.1111/j.1551-2916.2005.00388.x
Lee D.-H., Gutu T., Jeffryes C., Rorrer G. L., Jiao J., Chang C.-H., Nanofabrication of Green Luminescent Zn[sub 2]SiO[sub 4]:Mn Using Biogenic Silica, 10.1149/1.2732075
Lee Doo-hyoung, Wang Wei, Gutu Timothy, Jeffryes Clayton, Rorrer Gregory L., Jiao Jun, Chang Chih-hung, Biogenic silica based Zn2SiO4:Mn2+ and Y2SiO5:Eu3+ phosphor layers patterned by inkjet printing process, 10.1039/b806812g
Jeffryes Clayton, Gutu Timothy, Jiao Jun, Rorrer Gregory L., Two-stage photobioreactor process for the metabolic insertion of nanostructured germanium into the silica microstructure of the diatom Pinnularia sp., 10.1016/j.msec.2007.01.002
Chang Y.-J., Mugdur P. H., Han S.-Y., Morrone A. A., Ryu S. O., Lee T.-J., Chang C.-H., Nanocrystalline CdS MISFETs Fabricated by a Novel Continuous Flow Microreactor, 10.1149/1.2183847
Parkinson John, Brechet Yves, Gordon Richard, Centric diatom morphogenesis: a model based on a DLA algorithm investigating the potential role of microtubules, 10.1016/s0167-4889(99)00116-0
Eaglesham D. J., Cerullo M., Dislocation-free Stranski-Krastanow growth of Ge on Si(100), 10.1103/physrevlett.64.1943
Kaushik Diksha, Singh Ragini Raj, Sharma Madhulika, Gupta D.K., Lalla N.P., Pandey R.K., A study of size dependent structure, morphology and luminescence behavior of CdS films on Si substrate, 10.1016/j.tsf.2007.02.093
Qin Tian, Gutu Timothy, Jiao Jun, Chang Chih-Hung, Rorrer Gregory L., Photoluminescence of Silica Nanostructures from Bioreactor Culture of Marine Diatom Nitzschia frustulum, 10.1166/jnn.2008.241
Aguilar-Hern ndez J, Contreras-Puente G, Morales-Acevedo A, Vigil-Gal n O, Cruz-Gandarilla F, Vidal-Larramendi J, Escamilla-Esquivel A, Hern ndez-Contreras H, Hesiquio-Gardu o M, Arias-Carbajal A, Chavarr a-Casta eda M, Arriaga-Mej a G, Photoluminescence and structural properties of cadmium sulphide thin films grown by different techniques, 10.1088/0268-1242/18/2/308
Archbold M.D., Halliday D.P., Durose K., Hase T.P.A., Boyle D.S., Mazzamuto S., Romeo N., Bosio A., Development of low temperature approaches to device quality CdS: A modified geometry for solution growth of thin films and their characterisation, 10.1016/j.tsf.2006.09.005
Andsager D., Hilliard J., Hetrick J. M., AbuHassan L. H., Plisch M., Nayfeh M. H., Quenching of porous silicon photoluminescence by deposition of metal adsorbates, 10.1063/1.354350
Lozada-Morales R., Zelaya-Angel O., Torres-Delgado G., On the yellow-band emission in CdS films : , 10.1007/s003390100828
Subba Ramaiah Kodigala, Pilkington R.D, Hill A.E, Tomlinson R.D, Bhatnagar A.K, Structural and optical investigations on CdS thin films grown by chemical bath technique, 10.1016/s0254-0584(00)00281-9
Tsai C. T., Chuu D. S., Chen G. L., Yang S. L., Studies of grain size effects in rf sputtered CdS thin films, 10.1063/1.362645
Bibliographic reference
Gutu, Timothy ; Gale, Debra K. ; Jeffryes, Clayton ; Wang, Wei ; Chang, Chih-hung ; et. al. Electron Microscopy and Optical Characterization of Cadmium Sulphide Nanocrystals Deposited on the Patterned Surface of DiatomBiosilica. In: Journal of Nanomaterials, Vol. 2009, p. 860536 (2009)