Can anyone tell me the chemical method for the Growth of CdS and CdSe Nanofilms?
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The use of chemical deposition (CBD) of the CdS thin films prepared by Cubic. The experiments show that in the absence of mixing, citric acid as a complexing agent satisfied that the conditions, the formula for the solution of cadmium 0.02. 0.02 sodium citrate, 0.05md/L CS (NH2) 2 system, When the pH wanted. 5, the temperature of 80 ° C, ITO glass of CdS thin films deposition precursors. then the precursor 3.5 ℃ After two hours under nitrogen treatment by X-ray diffraction (XRD) and scanning electron microscope analysis, Film is a good surface crystallization, a cubic phase, the smooth surface of CdS thin films. Along with the increase of temperature. CdS thin films are much higher degree of crystallization of the grain grown up obviously, there has been a great improvement in their optical properties. \n\n\n\nCBD used in the semiconductor cadmium acetate solution of CdS thin films were prepared. The group studied the solution concentration of CdS crystal structure. increase the concentration of acetate. raise the pH value is beneficial to the establishment of the orthorhombic CdS, Instead it is easy to create hexagomal CdS. Whether cubic or hexagonal CdS thin films Ω-cm resistivity at 104-105, Crystallization uniform meticulous. six cubic crystal and the crystal with the preparation of CdS thin solar maximum efficiency 12.10% and 12.17% respectively. \n\nWhen trying the followinf source do not forgot to translate it.
905772
Carbon (diamond) Silicon Germanium.\nMany more with doping and compounds\n\nhttp://en.wikipedia.org/wiki/List_of_semiconductor_materials
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Here you have a free downloable PDF presentation from the 28 Sep 05 Conference Micro & Nano Technology (MNT) Measurement Club. I think it's worth to have a look.\n\n"Measuring Nanoparticle Surface Area and Porosity by Gas Sorption"\nMike Tucker, Quantachrome UK\nThe technique of gas sorption has long been used for the determination of surface area and pore size distribution of particulate systems and porous solids. While traditional sorption systems have proved adequate for the majority of tasks, the latest generation of ultra-fine materials, often coupled with microporosity offer new challenges to the sorption scientist. To meet these challenges many new developments have been made in the fields of analytical instrumentation and software modelling. The presentation will review some of the new techniques available, and provide examples to illustrate their applicability to the field of nanotechnology.\nDownload presentation: http://www.npl.co.uk/php/docs/download.php?area=metrology_clubs&path_name=/metrology_clubs/mnt/meetings/28sep05/presentations/connagh.pdf
750811
Your question makes no sense.\nIf I understand correctly you are making artificial sea water by making a solution of KCl, HNO3,Hg(+2), then you are adding Pb(+2) and Cd(+2) to known concentrations... measuring potential (what method?) and you want to determine the concentration of...what? You know the concentrations of all species (unless a reaction is taking place)
814611
CdSo4+NH4OH ---->Cd(OH)2 + (NH4)2SO4
959066
Try Wikipedia.org...Qualitative inorganic analysis. I was just there.
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check out hydroponics, soilless growth, with sodium halide lamps. Amazing growth rate but expensive for electricity. you can find the right kit on ebay. happy growing, man:)
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See source.\n\nY Jiang, Y Wu, Y Xie, Y-T Qian, 2000, Synthesis and Characterization of Nanocrystalline Lanthanide Oxysulfide via a La(OH)3 Gel Solvothermal Route. J. Am. Ceram. Soc. v 83 p 2628 \n\nAbstract:\n\nA La(OH)3 gel solvothermal process has been developed for the preparation of nanocrystalline lanthanide oxysulfide (La2O2S) in polar solvents at 300°C through a reaction between a La(OH)3 gel and K2S. X-ray powder diffraction (XRD) indicated that the product was hexagonal La2O2S with cell parameters a = 4.046 Å and c = 6.951 Å. Transmission electronic microscopy (TEM) showed that different morphology nanocrystallites were formed, including particles with diameters of about 10 nm and nanorods about 10 nm in diameter and 300 nm in length, depending on the solvent.
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Try this at home: toss a CD or DVD in the dishwasher. You will have a perfectly clear disk and a wad of metalized film when the cycle finishes.\n\nYou can find the nearest place to take them with Earth 911's locator at http://www.earth911.org.
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is this your school homework,  are there suppossed to be other questions before these because my computer shows them starting from No. 4.\nnway,\n4.  filter the solution while still hot because as the soltion cools crystallization occurs, and you will nloose your product on the fiolter paper.\n5. crystallization can be induced by reduction in temperature i.e put in an ice bath or you can use a technique called seeding where you put a few crystals of the expected substance in the solution, the other method is to increase the concentration of the solution by evaporating it, to saturation point, ensure you do not evaporate it dry.\n6.i do not know what you started with so i can not tell.\n7.slow cooling will definately give bigger crystalls.\n8.sodium chloride reacts with silver nitrate to form a white precipitate, actually silver nitrate solution is used to analyse NaCl in industrial setting.\n\nope you will find these information sufficient.
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A team from Los Alamos National Laboratory found that quantum dots produce as many as three electrons from one high energy photon of sunlight. When today's photovoltaic solar cells absorb a photon of sunlight, the energy gets converted to at most one electron, and the rest is lost as heat. This could boost the efficiency from today's 20-30% to 65%. This work was reproduced one year later by an NREL team.\n\nFor detailed information on Quantum Dots, visit http://en.wikipedia.org/wiki/Quantum_dots\n\n-\nWWW - Weird & Wonderful Web - http://www.kudige.blogspot.com/
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ChemDraw from CambridgeSoft Corporation may be help you. Look at www.cambridgesoft.com
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Probably not on the web.  Do a web search on the final product, read the hits, and see if the journals mentioned are on line or contact the authors (be very polite!!! if you want feedback).  If not you will need the library.  The book series Inorganic Syntheses should have it.
768677
Gallium based semi-conductor right now is too expensive to deploy. \n\nIf you want completely out of the left field, I'd go for optical processing.
22153
this is basically what is nanotechnology.........\n\nNanotechnology is defined as fabrication of devices with atomic or molecular scale precision. Devices with minimum feature sizes less than 100 nanometers (nm) are considered to be products of nanotechnology. A nanometer is one billionth of a meter (10-9 m) and is the unit of length that is generally most appropriate for describing the size of single molecules. The nanoscale marks the nebulous boundary between the classical and quantum mechanical worlds; thus, realization of nanotechnology promises to bring revolutionary capabilities. Fabrication of nanomachines, nanoelectronics and other nanodevices will undoubtedly solve an enormous amount of the problems faced by mankind today.\n\nNanotechnology is currently in a very infantile stage. However, we now have the ability to organize matter on the atomic scale and there are already numerous products available as a direct result of our rapidly increasing ability to fabricate and characterize feature sizes less than 100 nm. Mirrors that don't fog, biomimetic paint with a contact angle near 180°, gene chips and fat soluble vitamins in aqueous beverages are some of the first manifestations of nanotechnology. However, immenant breakthroughs in computer science and medicine will be where the real potential of nanotechnology will first be achieved.\n\nNanoscience is an interdisciplinary field that seeks to bring about mature nanotechnology. Focusing on the nanoscale intersection of fields such as physics, biology, engineering, chemistry, computer science and more, nanoscience is rapidly expanding. Nanotechnology centers are popping up around the world as more funding is provided and nanotechnology market share increases. The rapid progress is apparent by the increasing appearance of the prefix "nano" in scientific journals and the news. Thus, as we increase our ability to fabricate computer chips with smaller features and improve our ability to cure disease at the molecular level, nanotechnology is here.\nregards\nram
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Best bet would be physics, chemistry, and engineering for your undergrad training, followed by materials science and any specific nanotech courses in grad school-a master's or better would be needed.  Cal tech is tops in this field.
817601
try the local chemist....