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Research Output 1900 2018

2018

Development of low-fluorine solution route and UV photolysis process for YBa2Cu3O7-x coated conductors

Chen, Y., Qu, W., Bian, W., Li, L., Yerramilli, A. S., Li, N., Song, Y., Wu, H., Wang, A., Theodore, N. D. & Alford, T. L., Jan 1 2018, (Accepted/In press) In : MRS Communications.

Research output: Contribution to journalArticle

Photolysis
Fluorine
Superconducting films
Water vapor
Carbon
5 Citations

Effect of excessive Pb content in the precursor solutions on the properties of the lead acetate derived CH3NH3PbI3 perovskite solar cells

Chen, Y., Yerramilli, A., Shen, Y., Zhao, Z. & Alford, T., Jan 1 2018, In : Solar Energy Materials and Solar Cells. 174, p. 478-484 7 p.

Research output: Contribution to journalArticle

Lead
Conversion efficiency
Perovskite
Perovskite solar cells
lead acetate
1 Citations

Fabrication of PZT/CuO composite films and their photovoltaic properties

Song, Y., Li, L., Chen, Y., Li, F., Qu, W., Wu, H., Yerramilli, A. S., Alford, T. L. & Zheng, H., Jun 23 2018, (Accepted/In press) In : Journal of Sol-Gel Science and Technology. p. 1-7 7 p.

Research output: Contribution to journalArticle

Sulfur hexafluoride circuit breakers
Composite films
Photocurrents
Fabrication
fabrication

Impact of excess lead on the stability and photo-induced degradation of lead halide perovskite solar cells

Yerramilli, A. S., Chen, Y., Sanni, D., Asare, J., Theodore, N. D. & Alford, T. L., Aug 1 2018, In : Organic Electronics: physics, materials, applications. 59, p. 107-112 6 p.

Research output: Contribution to journalArticle

halides
Lead
solar cells
degradation
Degradation

Implementing a 'design for online' approach for engineering courses

Mansfield, J. M., Alford, T. L. & Theodore, N. D., Jun 23 2018, In : ASEE Annual Conference and Exposition, Conference Proceedings. 2018-June

Research output: Contribution to journalConference article

Students
Materials science
Education
Blueprints
Studios

Mathematical model of the effects of government intervention and rehabilitation of prostitution

Lanz, A., White, Z. & Alford, T. L., Mar 9 2018, (Accepted/In press) In : International Journal of Biomathematics.

Research output: Contribution to journalArticle

Epidemiology
Rehabilitation
Patient rehabilitation
Mathematical Model
Mathematical models

Misconception clarification in online graduate courses

Mansfield, J., Alford, T. L. & Theodore, N. D., Jun 23 2018, In : ASEE Annual Conference and Exposition, Conference Proceedings. 2018-June

Research output: Contribution to journalConference article

Students
Feedback
Materials science

Self-Powered, Inkjet Printed Electrochromic Films on Flexible and Stretchable Substrate for Wearable Electronics Applications

Azhar, E. A., Alford, T. & Yu, H., Aug 7 2018, Proceedings - IEEE 68th Electronic Components and Technology Conference, ECTC 2018. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-May, p. 131-138 8 p. 8429541

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electrochromic devices
Substrates
Ink
Nanoparticles
Size determination
2017
traveling ionospheric disturbances
selenides
Radiation
Electrodes
electrodes

Ag-chalcogenide glass flexible radiation sensor: Impact of atomic ratio of Se on the TID influenced lateral diffusion of Ag

Mahmud, A., Gonzalez-Velo, Y., Taggart, J., Bamaby, H. J., Kozicki, M. N., Holbert, K. E., Mitkova, M., Alford, T. L., Goryll, M. & Chen, W., Oct 31 2017, 2016 16th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2016. Institute of Electrical and Electronics Engineers Inc., Vol. 2016-September, p. 1-3 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Germanium compounds
Selenium compounds
germanium compounds
selenium compounds
Radiation shielding

Comparison of scanning laser annealing and microwave annealing for As+ implanted Si

Zhao, Z., Hilman, J., Oropeza, M., Nian, Q. & Alford, T. L., Jan 1 2017, In : Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics. 35, 1, 011202

Research output: Contribution to journalArticle

laser annealing
Microwaves
Annealing
Scanning
microwaves
2 Citations

Resistive Switching Characteristics of Flexible TiO₂ Thin Film Fabricated by Deep Ultraviolet Photochemical Solution Method

Chen, Y., Li, L., Yin, X., Yerramilli, A., Shen, Y., Song, Y., Bian, W., Li, N., Zhao, Z., Qu, W., Theodore, N. D. & Alford, T. L., Sep 23 2017, (Accepted/In press) In : IEEE Electron Device Letters.

Research output: Contribution to journalArticle

Thin films
Polyethylene Terephthalates
Tin oxides
Polyethylene terephthalates
Indium
Indium
Tin oxides
Anodes
Electrodes
Styrene
2016
1 Citations

A percolative approach to investigate electromigration failure in printed Ag structures

Zhao, Z., Mamidanna, A., Lefky, C., Hildreth, O. & Alford, T. L., Sep 28 2016, In : Journal of Applied Physics. 120, 12, 125104

Research output: Contribution to journalArticle

electromigration
inks
silver
microelectronics
life (durability)
2 Citations

Flexible Ag-ChG Radiation Sensors: Limit of Detection and Dynamic Range Optimization Through Physical Design Tuning

Mahmud, A., Gonzalez-Velo, Y., Saremi, M., Barnaby, H. J., Kozicki, M. N., Holbert, K. E., Mitkova, M., Alford, T. L., Goryll, M., Yu, W., Mahalanabis, D., Chen, W., Chamele, N. & Taggart, J., Jul 18 2016, (Accepted/In press) In : IEEE Transactions on Nuclear Science.

Research output: Contribution to journalArticle

dynamic range
Tuning
tuning
Radiation
optimization
3 Citations

Measurement of InAsBi mole fraction and InBi lattice constant using Rutherford backscattering spectrometry and X-ray diffraction

Shalindar, A. J., Webster, P. T., Wilkens, B. J., Alford, T. L. & Johnson, S. R., Oct 14 2016, In : Journal of Applied Physics. 120, 14, 145704

Research output: Contribution to journalArticle

backscattering
diffraction
spectroscopy
x rays
sidebands

The extent of dopant activation after microwave and rapid thermal anneals using similar heating profiles

Gunawansa, T., Zhao, Z., Theodore, N. D., Lanz, A. R. & Alford, T. L., Jan 1 2016, EPD Congress 2015. Springer International Publishing, p. 141-148 8 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Chemical activation
Microwaves
Doping (additives)
Heating
Annealing
9 Citations
Electrodes
Indium
Tin oxides
Deposition rates
Conversion efficiency
2015
10 Citations

Advances in 2D/3D printing of functional nanomaterials and their applications

Choi, J. Y., Das, S., Theodore, N. D., Kim, I., Honsberg, C., Choi, H. W. & Alford, T. L., 2015, In : ECS Journal of Solid State Science and Technology. 4, 4, p. P3001-P3009

Research output: Contribution to journalArticle

Nanostructured materials
Printing
Functional materials
Ointments
Ink
8 Citations

Aging effect of a molecularly imprinted polymer on a quartz tuning fork sensor for detection of volatile organic compounds

Deng, Y., Chen, C., Qin, X., Xian, X., Alford, T. L., Choi, H. W., Tsow, F. & Forzani, E. S., 2015, In : Sensors and Actuators, B: Chemical. 211, p. 25-32 8 p.

Research output: Contribution to journalArticle

Volatile Organic Compounds
forks
Quartz
volatile organic compounds
Volatile organic compounds

A Method for Efficient Transmittance Spectrum Prediction of Transparent Composite Electrodes

Zhao, Z., Dhar, A. & Alford, T. L., Jul 1 2015, In : JOM. 67, 7, p. 1612-1616 5 p.

Research output: Contribution to journalArticle

Metals
Electrodes
Composite materials
Oxides
Indium

As-doped Si's complex permittivity and its effects on heating curve at 2.45 GHz frequency

Varadan, S., Pan, G., Zhao, Z. & Alford, T., Jun 29 2015, 2015 Joint Conference of the IEEE International Frequency Control Symposium and the European Frequency and Time Forum, FCS 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., p. 111-116 6 p. 7138802

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Silicon wafers
Permittivity
Doping (additives)
Heating
Silicon
1 Citations

Carrier recombination lifetime measurement in silicon epitaxial layers using optically excited MOS capacitor technique

Elhami Khorasani, A., Schroder, D. K. & Alford, T. L., May 1 2015, In : IEEE Transactions on Electron Devices. 62, 5, p. 1553-1560 8 p., 7067362

Research output: Contribution to journalArticle

MOS capacitors
Epitaxial layers
Silicon
Solid state devices
MOS devices
2 Citations

Computational modeling of optical properties in aluminum nanolayers inserted in ZnO for solar cell electrodes

Rwenyagila, E. R., Agyei-Tuffour, B., Onogu, K. O., Akin-Ojo, O., Zebaze Kana, M. G., Alford, T. L. & Soboyejo, W. O., 2015, In : Optics Letters. 40, 16, p. 3914-3917 4 p.

Research output: Contribution to journalArticle

solar cells
aluminum
optical properties
electrodes
transmittance
1 Citations

Controlled Microwave Processing of IGZO Thin Films for Improved Optical and Electrical Properties

Dhar, A. & Alford, T. L., Jul 1 2015, In : JOM. 67, 7, p. 1624-1628 5 p.

Research output: Contribution to journalArticle

Zinc Oxide
Gallium
Indium
Zinc oxide
Oxide films

Determination of complex permittivity for low- and high-loss materials at microwave frequencies

Varadan, S. K., Zhang, L., Pan, G. & Alford, T., May 7 2015, 2014 IEEE 23rd Conference on Electrical Performance of Electronic Packaging and Systems, EPEPS 2014. Institute of Electrical and Electronics Engineers Inc., p. 219-222 4 p. 7103638

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Microwave frequencies
Polychlorinated biphenyls
Permittivity
Copper
Bessel functions
4 Citations

Effect of Different Substrates on the Wettability and Electrical Properties of Au Thin Films Deposited by Sputtering

Dhar, A., Zhao, Z. & Alford, T. L., Mar 10 2015, In : JOM. 67, 4, p. 845-848 4 p.

Research output: Contribution to journalArticle

Sputtering
Wetting
Electric properties
Thin films
Substrates
6 Citations
Gold
Multilayers
Electric properties
Optical properties
Annealing
10 Citations
Nanospheres
Silicon
Silicon Dioxide
Metals
Silica
4 Citations

Optimization of flexible Ag-chalcogenide glass sensors for radiation detection

Mahmud, A., Gonzalez-Velo, Y., Saremi, M., Barnaby, H. J., Kozicki, M. N., Holbert, K. E., Mitkova, M., Alford, T. L., Goryll, M., Mahalanabis, D., Yu, W., Chen, W. & Taggart, J., Dec 24 2015, 2015 15th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2015. Institute of Electrical and Electronics Engineers Inc., Vol. 2015-December, 7365644

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Radiation
Glass
optimization
glass
sensors
6 Citations
Zinc Oxide
Yttrium
Zinc oxide
Doping (additives)
Annealing
26 Citations

P3HT: PC61BM based solar cells employing solution processed copper iodide as the hole transport layer

Das, S., Choi, J. Y. & Alford, T. L., 2015, In : Solar Energy Materials and Solar Cells. 133, p. 255-259 5 p.

Research output: Contribution to journalArticle

Iodides
Copper
Solar cells
Butyric acid
X ray diffraction analysis
15 Citations

Photocurrent enhancements of organic solar cells by altering dewetting of plasmonic Ag nanoparticles

Fleetham, T., Choi, J. Y., Choi, H. W., Alford, T., Jeong, D. S., Lee, T. S., Lee, W. S., Lee, K. S., Li, J. & Kim, I., Sep 21 2015, In : Scientific Reports. 5, 14250

Research output: Contribution to journalArticle

drying
photocurrents
solar cells
nanoparticles
ITO (semiconductors)
3 Citations

Prediction of transmittance spectra for transparent composite electrodes with ultra-thin metal layers

Zhao, Z., Khorasani, A. E., Theodore, N. D., Dhar, A. & Alford, T. L., Nov 28 2015, In : Journal of Applied Physics. 118, 20, 205304

Research output: Contribution to journalArticle

transmittance
composite materials
electrodes
predictions
metals

The extent of dopant activation after microwave and rapid thermal anneals using similar heating profiles

Gunawansa, T., Zhao, Z., Theodore, N. D., Lanz, A. R. & Alford, T. L., 2015, TMS Annual Meeting. January ed. Minerals, Metals and Materials Society, Vol. 2015-January, p. 141-148 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chemical activation
Microwaves
Doping (additives)
activation
Heating
2 Citations

The impact of two-way formative feedback and web-enabled resources on student resource use and performance in materials courses

Krause, S. J., Baker, D. R., Carberry, A. R., Alford, T. L., Ankeny, C. J., Brooks, B. J., Koretsky, M. & Gibbons, B. J., 2015, 122nd ASEE Annual Conference and Exposition: Making Value for Society. American Society for Engineering Education

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Students
Feedback
Textbooks
Teaching
Warehouses
2014
2 Citations

A fast I-V screening measurement for tddb assessment of ultra-thick inter-metal dielectrics

Khorasani, A. E., Griswold, M. & Alford, T. L., Jan 2014, In : IEEE Electron Device Letters. 35, 1, p. 117-119 3 p., 6680596

Research output: Contribution to journalArticle

Screening
Metals
Electric breakdown
Oxides
Electric potential
4 Citations

A fast technique to screen carrier generation lifetime using DLTS on MOS capacitors

Elhami Khorasani, A., Schroder, D. K. & Alford, T. L., 2014, In : IEEE Transactions on Electron Devices. 61, 9, p. 3282-3288 7 p., 6867334

Research output: Contribution to journalArticle

MOS capacitors
Deep level transient spectroscopy
Screening
Capacitors
Metals
3 Citations

Characterizing and addressing student learning issues and misconceptions (SLIMs) in materials science with muddiest point reflections and fast formative feedback

Krause, S. J., Baker, D. R., Carberry, A. R., Alford, T. L., Ankeny, J., Koretsky, M., Brooks, B. J., Waters, C., Gibbons, B. J., Maass, S. & Chan, C. K., 2014, ASEE Annual Conference and Exposition, Conference Proceedings. American Society for Engineering Education

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Materials science
Students
Feedback
Monitoring
Warehouses
Indium
Zinc Oxide
Gallium
Electric properties
Optical properties
5 Citations
Transport properties
Indium
Optical properties
solar cells
transport properties
6 Citations

Enhanced power conversion efficiency of organic solar cells by embedding Ag nanoparticles in exciton blocking layer

Kim, I., Fleetham, T., Choi, H. W., Choi, J. Y., Lee, T. S., Jeong, D. S., Lee, W. S., Lee, K. S., Lee, Y. K., Alford, T. L. & Li, J., 2014, In : Organic Electronics: physics, materials, applications. 15, 10, p. 2414-2419 6 p.

Research output: Contribution to journalArticle

Excitons
embedding
Conversion efficiency
solar cells
excitons
7 Citations

Flexible sensors based on radiation-induced diffusion of ag in chalcogenide glass

Dandamudi, P., Mahmud, A., Gonzalez-Velo, Y., Kozicki, M. N., Barnaby, H. J., Roos, B., Alford, T. L., Ailavajhala, M., Mitkova, M. & Holbert, K. E., Dec 1 2014, In : IEEE Transactions on Nuclear Science. 61, 6, p. 3432-3437 6 p., 6949157

Research output: Contribution to journalArticle

Radiation
Glass
glass
sensors
Sensors
6 Citations

Gate-controlled reverse recovery for characterization of LDMOS body diode

Khorasani, A. E., Griswold, M. & Alford, T. L., Nov 1 2014, In : IEEE Electron Device Letters. 35, 11, p. 1079-1081 3 p., 6895242

Research output: Contribution to journalArticle

Diodes
Recovery
MOSFET devices
Monitoring
Electric potential
10 Citations

Improved efficiency of P3HT: PCBM solar cells by incorporation of silver oxide interfacial layer

Das, S. & Alford, T. L., Jul 28 2014, In : Journal of Applied Physics. 116, 4, 044905

Research output: Contribution to journalArticle

silver oxides
solar cells
shunts
ITO (semiconductors)
equivalent circuits
1 Citations

JTF web-enabled faculty and student tools for more effective teaching and learning through two-way, Frequent Formative Feedback

Krause, S. J., Baker, D. R., Carberry, A. R., Alford, T. L., Ankeny, C. J., Koretsky, M., Brooks, B. J., Gilbuena, D. M., Waters, C., Gibbons, B. J., Stuart, W. J., Maass, S. & Chan, C. K., 2014, ASEE Annual Conference and Exposition, Conference Proceedings. American Society for Engineering Education

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Teaching
Students
Feedback
Textbooks
Warehouses
3 Citations

Optically excited mos-capacitor for recombination lifetime measurement

Khorasani, A. E., Schroder, D. K. & Alford, T. L., Oct 1 2014, In : IEEE Electron Device Letters. 35, 10, p. 986-988 3 p., 6878420

Research output: Contribution to journalArticle

MOS capacitors
Epitaxial layers
Capacitors
Impurities
Monitoring
28 Citations
Multilayers
Electrodes
Multilayer films
Sheet resistance
Composite materials
10 Citations

Self-assembled monolayer modified ITO in P3HT: PC61BM organic solar cells with improved efficiency

Das, S., Joslin, J. & Alford, T. L., May 2014, In : Solar Energy Materials and Solar Cells. 124, p. 98-102 5 p.

Research output: Contribution to journalArticle

Self assembled monolayers
Tin oxides
Short circuit currents
Indium
Solar cells
17 Citations

Solvent-controlled spin-coating method for large-scale area deposition of two-dimensional silica nanosphere assembled layers

Choi, J. Y., Alford, T. L. & Honsberg, C. B., May 27 2014, In : Langmuir. 30, 20, p. 5732-5738 7 p.

Research output: Contribution to journalArticle

Nanospheres
Spin coating
Silicon Dioxide
Dimethylformamide
coating