Theodore O. Poehler


		Faculty


Theodore O. Poehler Research Professor of Materials Science and Engineering Vice Provost for Research, The Johns Hopkins University Ph.D. Electrical Engineering, The Johns Hopkins University, 1961 M.S. Electrical Engineering, The Johns Hopkins University, 1958 B.S. Electrical Engineering, The Johns Hopkins University, 1956
Dr. Poehler's primary research interests are in the structure, transport, and optical properties of inorganic compound semiconductors and in the electrical and optical properties of organic complexes and polymers. A program aimed at controlling and optimizing the electronic and materials properties of organic conductors and semiconductors uses a combination of synthesis, physical experiment, and theory to develop new organic solids and understand their basic electrical and optical properties. He is also exploring the physics and chemistry of electronically conducting polymers, focusing on specific polymers for charge storage applications that include batteries, electrochromic devices, and supercapacitors. Recent advances in preparation techniques and improvements in architecture have provided significant opportunities to fabricate semiconductor devices and arrays to meet advanced sensor requirements. Research in this area has two components. The first physically characterizes group II-VI compound materials and evaluates the materials as infrared detectors or sources. The second part explores a new family of group III-V semiconducting detectors capable of operating as sensors from the visible into the ultraviolet region of the spectrum.


		Selected Publications Coffey, B., P. V. Madsen, T.O. Poehler and P.C. Searson. "High Charge Density Conducting Polymer/Graphite Fiber Composite Electrodes for Battery Applications." J Electrochemical Soc, 141 (1995): 321. Collins, B., T.O. Poehler and W.A. Bryden. "EPR Persistence Measurements of UV-Induced Melanin Free Radicals in Whole Skin." Photochemistry and Photobiology, 62 (1995): 557. Killian, J. G., B. M. Coffey, T. O. Poehler and P. C. Searson. "Fabrication of a Polymer Battery Based on Polypyrrole Electrodes and a Polymer Gel Electrolyte." Materials Research Society Symposium Proceedings, Vol. 393 (1995): 177.		Killian, J. G., B. M. Coffey, F. Gao, T. O. Poehler and P. C. Searson. "Polypyrrole Composite Electrodes in an All-Polymer Battery System." J. Electrochem. Soc., Vo. 143, No. 3 (March 1996). Ong, I. W., D. C. Cowan and T. O. Poehler. "Surface Enhanced Raman Spectroscopy of AgTCNQ Formed From Ag Micellar and Inverse Micellar Collodial Systems." Materials Research Society Symposium Proceedings, Vo. 413 (1996): 601. Kutcher, S. W., T. O. Poehler, S. Trivedi, Z. Yu, H. R. Vydyanath and P. Becla. "Annealing Studies of Undoped Hg1-xMnxTe Bulk Crystals at High Temperatures." Journal of Electronic Materials, Vol. 25, No. 8 (1996). Sarker, H., Y. Gofer, J. G. Killian, T. O. Poehler and P. C. Searson. "Synthesis and characterization of fluoro-substituted polyphenylthiophenes for charge storage applications." Synthetic Metals, Vol. 88 (1997): 179. Gofer, Y., H. Sarker, J. G. Killian, J. Giacca, T. O. Poehler and P. C. Searson. "An All Polymer Battery." Applied Phys Letters, Vol. 71 (11) (1997): 1582.