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Research Output

2020

Experimental methods in chemical engineering: X-ray diffraction spectroscopy—XRD

Khan, H., Yerramilli, A. S., D'Oliveira, A., Alford, T. L., Boffito, D. C. & Patience, G. S., Jun 1 2020, In : Canadian Journal of Chemical Engineering. 98, 6, p. 1255-1266 12 p.

Research output: Contribution to journalReview article

2019

An approach to optimize pre-annealing aging and anneal conditions to improve photovoltaic performance of perovskite solar cells

Sanni, D. M., Chen, Y., Yerramilli, A. S., Ntsoenzok, E., Asare, J., Adeniji, S. A., Oyelade, O. V., Fashina, A. A. & Alford, T., Mar 1 2019, In : Materials for Renewable and Sustainable Energy. 8, 1, 3.

Research output: Contribution to journalArticle

2 Scopus citations

Effect of excessive Pb on the stability and performance of Pb-halide perovskite solar cells against photo-induced degradation

Yerramilli, A. S., Chen, Y. & Alford, T., Mar 1 2019, In : MRS Communications. 9, 1, p. 189-193 5 p.

Research output: Contribution to journalArticle

Enhanced power conversion efficiency and preferential orientation of the MAPbI3 perovskite solar cells by introduction of urea as additive

Li, Y., Li, L., Yerramilli, A. S., Chen, Y., Fang, D., Shen, Y. & Alford, T. L., Oct 2019, In : Organic Electronics. 73, p. 130-136 7 p.

Research output: Contribution to journalArticle

3 Scopus citations

Improved performance of inverted perovskite solar cells due to the incorporation of zirconium acetylacetonate buffer layer

Yerramilli, A. S., Chen, Y., Knight, A., Gogoi, B., Li, L., Song, Y., Shen, Y. & Alford, T., Sep 15 2019, In : Solar Energy Materials and Solar Cells. 200, 109927.

Research output: Contribution to journalArticle

2 Scopus citations

Introduction of nitrogen gas flow and precursor aging process to improve the efficiency of the lead acetate derived CH3NH3PbI3 perovskite solar cells

Chen, Y., Li, L., Yerramilli, A. S., Qu, W., Song, Y., Li, N., Shen, Y. & Alford, T., Feb 1 2019, In : Solar Energy Materials and Solar Cells. 190, p. 49-56 8 p.

Research output: Contribution to journalArticle

3 Scopus citations
2018

Control of the Nucleation and Growth of the Lead Acetate Solution Derived CH 3 NH 3 PbI 3 Films Leads to Enhanced Power Conversion Efficiency

Chen, Y., Yerramilli, A. S., Li, L., Qu, W., Shen, Y., Song, Y. & Alford, T., Jun 25 2018, In : ACS Applied Energy Materials. 1, 6, p. 2898-2906 9 p.

Research output: Contribution to journalArticle

1 Scopus citations

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., Jan 1 2018, (Accepted/In press) In : MRS Communications.

Research output: Contribution to journalArticle

1 Scopus 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

17 Scopus 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. & Zheng, H., Aug 1 2018, In : Journal of Sol-Gel Science and Technology. 87, 2, p. 285-291 7 p.

Research output: Contribution to journalArticle

5 Scopus citations

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., Aug 1 2018, In : Organic Electronics: physics, materials, applications. 59, p. 107-112 6 p.

Research output: Contribution to journalArticle

3 Scopus citations

Implementing a 'design for online' approach for engineering courses

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

Research output: Contribution to journalConference article

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

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

Research output: Contribution to journalArticle

Misconception clarification in online graduate courses

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

Research output: Contribution to journalConference article

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

4 Scopus citations
2017

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., Holbert, K., Mitkova, M., Alford, T., 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

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

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

Research output: Contribution to journalArticle

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., Sep 23 2017, (Accepted/In press) In : IEEE Electron Device Letters.

Research output: Contribution to journalArticle

10 Scopus citations
2016

A percolative approach to investigate electromigration failure in printed Ag structures

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

Research output: Contribution to journalArticle

7 Scopus 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., Kozicki, M., Holbert, K., Mitkova, M., Alford, T., 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

3 Scopus 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. & Johnson, S., Oct 14 2016, In : Journal of Applied Physics. 120, 14, 145704.

Research output: Contribution to journalArticle

7 Scopus citations

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., Jan 1 2016, EPD Congress 2015. Springer International Publishing, p. 141-148 8 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

20 Scopus citations
2015

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., Jan 1 2015, In : ECS Journal of Solid State Science and Technology. 4, 4, p. P3001-P3009

Research output: Contribution to journalArticle

19 Scopus 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., Choi, H. W., Tsow, F. & Forzani, E., May 2015, In : Sensors and Actuators, B: Chemical. 211, p. 25-32 8 p.

Research output: Contribution to journalArticle

10 Scopus citations

A Method for Efficient Transmittance Spectrum Prediction of Transparent Composite Electrodes

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

Research output: Contribution to journalArticle

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

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

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

Research output: Contribution to journalArticle

2 Scopus 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. & Soboyejo, W. O., 2015, In : Optics Letters. 40, 16, p. 3914-3917 4 p.

Research output: Contribution to journalArticle

3 Scopus citations

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

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

Research output: Contribution to journalArticle

1 Scopus citations

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

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

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

Research output: Contribution to journalArticle

4 Scopus citations
7 Scopus citations

Fabrication of periodic silicon nanopillars in a two-dimensional hexagonal array with enhanced control on structural dimension and period

Choi, J. Y., Alford, T. & Honsberg, C., Mar 17 2015, In : Langmuir. 31, 13, p. 4018-4023 6 p.

Research output: Contribution to journalArticle

16 Scopus citations

Optimization of flexible Ag-chalcogenide glass sensors for radiation detection

Mahmud, A., Gonzalez Velo, Y., Saremi, M., Barnaby, H., Kozicki, M., Holbert, K., Mitkova, M., Alford, T., 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

4 Scopus citations

Optimization of the zinc oxide electron transport layer in P3HT:PC61BM based organic solar cells by annealing and yttrium doping

Das, S. & Alford, T., Jan 1 2015, In : RSC Advances. 5, 57, p. 45586-45591 6 p.

Research output: Contribution to journalArticle

11 Scopus citations

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

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

Research output: Contribution to journalArticle

38 Scopus 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

27 Scopus 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., Nov 28 2015, In : Journal of Applied Physics. 118, 20, 205304.

Research output: Contribution to journalArticle

4 Scopus citations

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., 2015, EPD Congress 2015 - Held During TMS 2015 144th Annual Meeting and Exhibition. Yurko, J. A., Yurko, J. A., Allanore, A., Bartlett, L., Bartlett, L., Lee, J., Zhang, L., Zhang, L., Zhang, L., Tranell, G., Meteleva-Fischer, Y., Ikhmayies, S., Ikhmayies, S., Budiman, A. S., Tripathy, P. & Fredrickson, G. L. (eds.). January ed. Minerals, Metals and Materials Society, p. 141-148 8 p. (TMS Annual Meeting; vol. 2015-January, no. January).

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

1 Scopus citations

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

Krause, S., Baker, D. R., Carberry, A., Alford, T., 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

2 Scopus citations
2014

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

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

Research output: Contribution to journalArticle

3 Scopus citations

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

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

Research output: Contribution to journalArticle

4 Scopus citations

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

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

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

3 Scopus citations
5 Scopus citations
7 Scopus 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. & Li, J., Oct 2014, In : Organic Electronics. 15, 10, p. 2414-2419 6 p.

Research output: Contribution to journalArticle

6 Scopus citations