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Journal Articles: 34 results
Modifying Optical Properties of ZnO Films by Forming Zn1-xCoxO Solid Solutions via Spray Pyrolysis  Anne K. Bentley, Gabriela C. Weaver, Cianán B. Russell, William L. Fornes, Kyoung-Shin Choi, and Susan M. Shih
Presents a simple experiment demonstrating the presence of an energy band gap in a semiconductor and its relationship to the material's composition through observed color and UVvis absorption.
Bentley, Anne K.; Weaver, Gabriela C.; Russell, Cianán B.; Fornes, William L.; Choi, Kyoung-Shin; Shih, Susan M. J. Chem. Educ. 2007, 84, 1183.
Materials Science |
Semiconductors |
Solid State Chemistry |
UV-Vis Spectroscopy
Preparation of CdS Nanoparticles by First-Year Undergraduates  Kurt Winkelmann, Thomas Noviello, and Steven Brooks
First-year undergraduate students prepare bulk and nanometer-sized cadmium sulfide clusters within water-in-oil micelles and calculate particle size using the effective mass model.
Winkelmann, Kurt; Noviello, Thomas; Brooks, Steven. J. Chem. Educ. 2007, 84, 709.
Colloids |
Materials Science |
Nanotechnology |
Micelles |
Semiconductors |
UV-Vis Spectroscopy
Chemistry of Electronic Gases  James R. Clark
The chemistry of electronic gases can be used in the classroom to provide many interesting examples of molecular structures, chemical reactions, periodic trends, and environmental chemistry.
Clark, James R. J. Chem. Educ. 2006, 83, 857.
Applications of Chemistry |
Gases |
Industrial Chemistry |
Semiconductors |
Solid State Chemistry
The Discovery and Development of Cisplatin  Rebecca A. Alderden, Matthew D. Hall, and Trevor W. Hambley
Cisplatin is currently one of the most widely used anticancer drugs in the world. The unlikely events surrounding the discovery of its anticancer activity, subsequent introduction into the clinic, and the continuing research into platinum compounds is the subject of this review.
Alderden, Rebecca A.; Hall, Matthew D.; Hambley, Trevor W. J. Chem. Educ. 2006, 83, 728.
Bioinorganic Chemistry |
Coordination Compounds |
Drugs / Pharmaceuticals |
Medicinal Chemistry |
Metallic Bonding |
Oxidation State |
Synthesis
Electronegativity and the Bond Triangle  Terry L. Meek and Leah D. Garner
The dependence of bond type on two parameters, electronegativity difference (??) and average electronegativity (?av), is examined. It is demonstrated that ionic character is governed by the partial charges of the bonded atoms, and metallic character by the HOMOLUMO band gap.
Meek, Terry L.; Garner, Leah D. J. Chem. Educ. 2005, 82, 325.
Atomic Properties / Structure |
Covalent Bonding |
Metallic Bonding |
Ionic Bonding |
Main-Group Elements
LEDs: New Lamps for Old and a Paradigm for Ongoing Curriculum Modernization  S. Michael Condren, George C. Lisensky, Arthur B. Ellis, Karen J. Nordell, Thomas F. Kuech, and Steve Stockman
Summary of the key points of a white paper on LEDs as potential replacements for a significant fraction of vehicle, display, home, and workplace lighting, with substantial safety and environmental conserving benefits.
Condren, S. Michael; Lisensky, George C.; Ellis, Arthur B.; Nordell, Karen J.; Kuech, Thomas F.; Stockman, Steve. J. Chem. Educ. 2001, 78, 1033.
Materials Science |
Nanotechnology |
Semiconductors |
Solid State Chemistry |
Applications of Chemistry
Electronegativity and Bond Type: Predicting Bond Type  Gordon Sproul
Important limitations with using electronegativity differences to determine bond type and recommendations for using electronegativities in general chemistry.
Sproul, Gordon. J. Chem. Educ. 2001, 78, 387.
Covalent Bonding |
Materials Science |
Periodicity / Periodic Table |
Ionic Bonding |
Atomic Properties / Structure |
Metallic Bonding
A Quantitative van Arkel Diagram  Jensen, William B.
Using van Arkel diagrams to schematically represent relationships between ionic, covalent, and metallic bonds.
Jensen, William B. J. Chem. Educ. 1995, 72, 395.
Covalent Bonding |
Ionic Bonding |
Metallic Bonding
Visualization of the Abstract in General Chemistry  Paselk, Richard A.
A series of software programs for beginning chemistry, including a series of modules addressing the fundamental phenomena associated with bonding, the microscopic phenomena underlying commonly observed systems, and a reference periodic table.
Paselk, Richard A. J. Chem. Educ. 1994, 71, 225.
Covalent Bonding |
Ionic Bonding |
Metallic Bonding |
Periodicity / Periodic Table
Classifying Substances by Electrical Character: An Alternative to Classifying by Bond Type  Nelson, P. G.
An alternative classification of substances based on their electrical properties.
Nelson, P. G. J. Chem. Educ. 1994, 71, 24.
Conductivity |
Covalent Bonding |
Ionic Bonding |
Metallic Bonding |
Semiconductors
Photodegradation of methylene blue: Using solar light and semiconductor (TiO2)  Nogueira, Raquel F. P.; Jardim, Wilson F.
An experiment that can be used to introduce or explore concepts such as photochemistry, semiconductors, and kinetics.
Nogueira, Raquel F. P.; Jardim, Wilson F. J. Chem. Educ. 1993, 70, 861.
Semiconductors |
Photochemistry |
Kinetics |
Catalysis |
MO Theory
Experiments illustrating metal-insulator transitions in solids  Keller, Steven W.; Mallouk, Thomas E.
Experiments and demonstrations to expose undergraduate students to electronic properties of solids.
Keller, Steven W.; Mallouk, Thomas E. J. Chem. Educ. 1993, 70, 855.
Crystals / Crystallography |
Semiconductors |
MO Theory |
Materials Science
A simple and reliable chemical preparation of YBa2Cu3O7-x superconductors: An experiment in high temperature superconductivity for an advanced undergraduate laboratory  Djurovich, Peter I.; Watts, Richard J.
The popular kits used to engage students in sythetic procedures contain pedagogical flaws. This article presents an alternative to the so-called "shake and bake" kits.
Djurovich, Peter I.; Watts, Richard J. J. Chem. Educ. 1993, 70, 497.
Semiconductors |
Materials Science |
Solid State Chemistry |
Superconductivity
Conducting midshipmen - A classroom activity modeling extended bonding in solids  Lomax, Joseph F.
Using the electron-hopping model (analogous to people sitting in chairs) to explain electron movement and conductivity in insulators, semiconductors, and metals.
Lomax, Joseph F. J. Chem. Educ. 1992, 69, 794.
Solids |
Solid State Chemistry |
Conductivity |
Metals |
Semiconductors
Periodic properties in a family of common semiconductors: Experiments with light emitting diodes  Lisensky, George C.; Penn, Rona; Geselbracht, Margret J.; Ellis, Arthur B.
The prevalence of LED's and their low cost make LED's ideal for classroom demonstrations or laboratory experiments showing the connection between periodic trends in physical/chemical properties and a common high tech device.
Lisensky, George C.; Penn, Rona; Geselbracht, Margret J.; Ellis, Arthur B. J. Chem. Educ. 1992, 69, 151.
Periodicity / Periodic Table |
Semiconductors
A model to illustrate the brittleness of ionic and metallic crystals  Birk, James P.
Uses magnetic strips to explain the difference in brittleness between ionic and metallic solids.
Birk, James P. J. Chem. Educ. 1985, 62, 667.
Ionic Bonding |
Metallic Bonding |
Metals |
Physical Properties |
Crystals / Crystallography
Photoelectrochemical solar cells  McDevitt, John T.
An introduction to photoelectrochemical cells and topics pertaining to solar energy conversion.
McDevitt, John T. J. Chem. Educ. 1984, 61, 217.
Photochemistry |
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Semiconductors |
Applications of Chemistry
"Holey" crystals!   Feinstein, H. I.
Nonstoichiometric compounds have a range of composition, often exhibit unusual color, luster, fluorescence, and semi-conductance. This makes them fascinating compounds for student study.
Feinstein, H. I. J. Chem. Educ. 1981, 58, 638.
Stoichiometry |
Semiconductors |
Crystals / Crystallography |
Physical Properties |
Isotopes
Physical and chemical properties and bonding of metallic elements  Myers, R. Thomas
137. Common textbook errors concerning the physical and chemical properties, conductivity and bonding of metals.
Myers, R. Thomas J. Chem. Educ. 1979, 56, 712.
Physical Properties |
Metallic Bonding |
Metals |
Covalent Bonding
A simple and inexpensive solar energy experiment  Evans, J. H.; Pedersen, L. G.
Uses solid state technology to demonstrate the direct generation of electricity and the electrochemical generation of hydrogen.
Evans, J. H.; Pedersen, L. G. J. Chem. Educ. 1979, 56, 339.
Solid State Chemistry |
Semiconductors |
Electrochemistry
Solar energy  J. Chem. Educ. Staff
Information summarizing a variety of topics related to solar energy.
J. Chem. Educ. Staff J. Chem. Educ. 1979, 56, 264.
Applications of Chemistry |
Solid State Chemistry |
Semiconductors
Strength of chemical bonds  Christian, Jerry D.
Demonstrating the strength of chemical bonds by scaling a molecule up to a macroscopic size.
Christian, Jerry D. J. Chem. Educ. 1973, 50, 176.
Covalent Bonding |
Molecular Properties / Structure |
Metallic Bonding
An introduction to principles of the solid state. Extrinsic semiconductors  Weller, Paul F.
Includes a previous analogy is extended to cover n- and p-type semiconductors and discussions of the concepts of donors and acceptors, donor and acceptor activation energies and the corresponding charge carrier production at various temperatures, and the effects of the presence of both donors and acceptors.
Weller, Paul F. J. Chem. Educ. 1971, 48, 831.
Solid State Chemistry |
Solids |
Semiconductors
Integrated circuits in the instrumental laboratory  Scherer, George A.
A brief introduction to integrated circuits that exemplifies their use in instrumentation through the construction of a square wave generator, audio amplifier, decimal counting unit, and operational amplifier.
Scherer, George A. J. Chem. Educ. 1969, 46, 399.
Laboratory Equipment / Apparatus |
Instrumental Methods |
Semiconductors
Crystal models  Olsen, Robert C.
This short note illustrates a model designed to demonstrate the number of particles in a crystal that can be assigned to a unit cell.
Olsen, Robert C. J. Chem. Educ. 1967, 44, 728.
Crystals / Crystallography |
Molecular Modeling |
Solids |
Metals |
Metallic Bonding
An analogy for elementary band theory concepts in solids  Weller, Paul F.
The author presents analogies to help students understand insulators and metals, semiconductors, and the p-n junction.
Weller, Paul F. J. Chem. Educ. 1967, 44, 391.
Semiconductors |
Solid State Chemistry |
Metals
An analogy for the band theory of metals  van Reuth, E. C.
Presents a useful analogy for teaching students the band theory of metals.
van Reuth, E. C. J. Chem. Educ. 1966, 43, 484.
Metals |
Solid State Chemistry |
Semiconductors
Tangent-sphere models of molecules. III. Chemical implications of inner-shell electrons  Bent, Henry A.
While a study of atomic core sizes might seem to hold little promise of offering interesting insights into the main body of chemical theory, it is demonstrated here that from such a study emerges a picture of chemical bonding that encompasses as particular cases covalent, ionic, and metallic bonds.
Bent, Henry A. J. Chem. Educ. 1965, 42, 302.
Atomic Properties / Structure |
Molecular Properties / Structure |
Molecular Modeling |
Covalent Bonding |
Ionic Bonding |
Metallic Bonding
Principles of chemical reaction  Sanderson, R. T.
The purpose of this paper is to examine the nature of chemical change in the hope of recognizing and setting forth the basic principles that help us to understand why they occur.
Sanderson, R. T. J. Chem. Educ. 1964, 41, 13.
Reactions |
Thermodynamics |
Mechanisms of Reactions |
Kinetics |
Synthesis |
Covalent Bonding |
Ionic Bonding |
Metallic Bonding
A classical electrostatic view of chemical forces  Jaffe, H. H.
This paper reviews the different types of forces involved in the formation of chemical compounds, solids and liquids.
Jaffe, H. H. J. Chem. Educ. 1963, 40, 649.
Covalent Bonding |
Ionic Bonding |
Metallic Bonding |
Noncovalent Interactions
Conduction and semiconduction  Juster, Norman J.
Reviews the conductors and semiconductors, the p-n junction, and transistors.
Juster, Norman J. J. Chem. Educ. 1963, 40, 489.
Conductivity |
Semiconductors
Demonstrations of simple bonding using magnets  Baker, Wilbur L.
Demonstrates a variety of bonding using iron washers, magnets, and steel balls.
Baker, Wilbur L. J. Chem. Educ. 1962, 39, 131.
Covalent Bonding |
Ionic Bonding |
Metallic Bonding
Principles of chemical bonding  Sanderson, R. T.
Develops, through 25 statements, the basic principles of chemical bonding.
Sanderson, R. T. J. Chem. Educ. 1961, 38, 382.
Covalent Bonding |
Metallic Bonding |
Ionic Bonding |
Atomic Properties / Structure |
Molecular Properties / Structure
A chart of chemical compounds based on electronegativities  Yeh, Ping-Yuan
This short note presents a chart of chemical compounds based on the relative electronegativities of the elements.
Yeh, Ping-Yuan J. Chem. Educ. 1956, 33, 134.
Covalent Bonding |
Metallic Bonding |
Ionic Bonding