Dr. Gerardo Gutiérrez Heredia

Dr. Gutierrez received his B.E. degree in Electrical Engineering (2005), M.S. degree in Physics (2010) both from the University of Sonora (Mexico) and his Ph.D. in Materials Science (2014) from the Centro de Investigación en Materiales Avanzados-Monterrey (Mexico). He developed his graduate research work at the University of Texas at Dallas (UTD), focusing in the design, development and characterization of thin film electronic devices based on organic semiconductors and oxides. In 2015, he joined UTD as a postdoctoral fellow where he worked with thin film transistors based in oxide semiconductors on flexible substrates for biomedical applications. Dr. Gutiérrez currently holds a position at the Centro de Investigaciones en Optica, A.C (CIO) since August 2017.

Research Interests:

• Optoelectronic Devices
• Flexible Electronics
• Transparent Electronic Circuits
• Light Sensors
• Solar Cells

Publications:

2018-2019:

• From softening polymers to multimaterial based bioelectronic devices, M. Ecker, A. Joshi-Imre, R. Modi, C. L. Frewin, A. Garcia-Sandoval, J. Maeng, G. Gutierrez-Heredia, J. J. Pancrazio and W. E. Voit, Multifunctional Materials 2, 012001 (2019).
• Low-temperature thin film transistors based on pulsed laser deposited CdS active layers, V. H. Martinez-Landeros, N. Hernandez-Como, G. Gutierrez-Heredia, R. Ramirez-Bon, M. A. Quevedo-Lopez and F. S. Aguirre-Tostado, Semiconductor Science and Technology 34, 025008 (2019).
• Lifetime of hafnium oxide dielectric in thin-film devices fabricated on deformable softening polymer substrate, G. Gutierrez-Heredia, H. A. Pineda-Leon, A. Carrillo-Castillo, O. Rodriguez-Lopez, M. Tishechkin, K. M. Ong, J. S. Castillo and W. E. Voit, Materials Science in Semiconductor Processing 88, 273-277 (2018).
• Low-temperature sol-gel ZrHfO2-PMMA hybrid dielectric thin-films for metal oxide TFTs, M. G. S. Rao, M. A. Pacheco-Zuñiga, G. Gutierrez-Heredia, J. A. Torres Ochoa, M. A. Quevedo-Lopez and R. Ramirez-Bon Journal of Non-Crystalline Solids 502, 152-158 (2018).
• Synthesis and characterization of molybdenum sulfide nanoparticles by a new chemical reaction formulation, H. A. Pineda-Leon, A. Carrillo-Castillo, A. Ochoa-Landin, M. C. Acosta-Enriquez, G. Gutierrez-Heredia, S. G. Ruvalcaba-Mazo and S. J. Castillo, Chalcogenide Letters 15, 8 (2018).
• Solution-processed oxide thin film transistors on shape memory polymer enabled by photochemical self-patterning, T. B. Daunis, D. Barrera G. Gutierrez-Heredia, O. Rodriguez-Lopez, J. Wang, W. E. Voit and J. W. P. Hsu, Journal of Materials Research 33, 17 (2018).
• Effect of annealing atmosphere on IGZO thin film transistors on a deformable softening polymer substrate, G. Gutierrez-Heredia, J. Maeng, J. Conde, O. Rodriguez-Lopez and W. E. Voit, Semiconductor Science and Technology 33, 9 (2018).
• Specific contact resistance of IGZO thin film transistors with metallic and transparent conductive oxides electrodes and XPS study of the contact/semiconductor interfaces, M. E. Rivas-Aguilar, N. Hernandez-Como, G. Gutierrez-Heredia, A. Sanchez-Martinez, M. Mireles Ramirez, I. Mejia and M. A. Quevedo-Lopez, Current Applied Physics 18, 7 (2018).
• Sol-gel derived low temperature HfO2-GPTMS hybrid gate dielectric for a-IGZO thin-film transistors (TFTs), M. G. Syamala Rao, A. Sanchez-Martinez, G. Gutierrez-Heredia, M. A. Quevedo-Lopez and R. Ramirez-Bon, Ceramics International 44, 16428-16434 (2018).
• Chronic softening spinal cord stimulation arrays, A. Garcia-Sandoval, A. Pal, S. Sherman, A. R. Parikh, A. Joshi-Imre, D. Arreaga-Salas, G. Gutierrez-Heredia, A. C. Duran-Martinez, J. Nathan, S. Mahmoud Hosseini, J. B. Carmel and W. E. Voit, Journal of Neural Engineering 15, 4 (2018).

2010-2017:

• Highly Stable Indium-Gallium-Zinc-Oxide Thin-Film Transistors on Deformable Softening Polymer Substrates, G. Gutierrez-Heredia, O. Rodriguez-Lopez, A. Garcia-Sandoval and W. E. Voit, Advanced Electronic Materials (in progress/accepted) (2017).
• Solution-deposited Al2O3 dielectric towards fully-patterned thin film transistors on shape memory polymer, T. B. Daunis, G. Gutierrez-Heredia, O. Rodriguez-Lopez, J. Wang, W. E. Voit and J. W. P. Hsu, Proc. of SPIE, vol. 10105, 10105X-1 (2017).
• Comparative Study of PbS Thin Films Growth by Two Different Formulations using Chemical Bath Deposition, H. Pineda-Leon, G. Gutierrez-Heredia, A. De Leon, R. Ochoa- Landin, R. Ramirez-Bon, M. Flores-Acosta and J. S. Castillo, Chalcogenide Letters vol. 13, 4, pp.161-168 (2016).
• Solution-Based CdS on HfO2 Thin Films for High-Gain and Low-Voltage Unipolar Inverters, I. Mejia, G. Gutierrez-Heredia, A. L. Salas-Villasenor, C. G. Alvarado-Beltran, C. Avila-Avendano and M. A. Quevedo-Lopez, IEEE Transactions on Electron Device vol.63, 4, 1437-1443 (2016).
• Temperature dependence of the electrical characteristics of low-temperature processed zinc oxide thin film transistors, M. Estrada, G. Gutierrez-Heredia, A. Cerdeira, J. Alvarado, I. Garduño, J. Tinoco, I. Mejia and M. Quevedo-Lopez, Thin Solid Films 573, pp. 18-21 (2014).
• Fully Patterned and Low Temperature Transparent ZnO-Based Inverters, G. Gutierrez- Heredia, I. Mejia, M. E. Rivas-Aguilar, N. Hernandez-Como, V. H. Martinez-Landeros, F. S. Aguirre-Tostado and M. A. Quevedo-Lopez, Thin Solid Films 545, pp. 458-461 (2013).
• ZnO-Based Inverters for Flexible Electronics, G. Gutierrez-Heredia, I. Mejia, M. E. Rivas- Aguilar, F. S. Aguirre-Tostado and M. A. Quevedo-Lopez, Technical Proceedings of the NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013 2, pp. 103-106 (2013).
• Low temperature ZnO TFTs Fabrication with Al and AZO Contacts for Flexible Transparent Applications, G. Gutierrez-Heredia, I. Mejia, N. Hernandez-Como, M. E. Rivas-Aguilar, V. H. Martinez-Landeros, F. S. Aguirre-Tostado, B. E. Gnade and M. A. Quevedo-Lopez, MRS Proceedings vol. 1494, pp. 299-303 (2013).
• Degradation of pentacene deposited on gold, aluminum and parylene surface: impact of pentacene thickness, V. H. Martinez, G. Gutierrez-Heredia, F. S. Aguirre-Tostado, B. E. Gnade, M. Sotelo-Lerma and M. A. Quevedo-Lopez, Thin Solid Films 531, pp. 398-403 (2013).
• Full bridge circuit based on pentacene Schottky diodes fabricated on plastic substrates, G. Gutierrez-Heredia, V. H. Martinez-Landeros, F. S. Aguirre-Tostado, P. Shah, B. E. Gnade, M. Sotelo-Lerma and M. A. Quevedo-Lopez, Semicond. Sci. Technol. 27, 085013 (2012).
• Integration and electrical characterization of organic thin film transistor for an active matrix of OLEDs, G. Gutierrez-Heredia, L. A. Gonzalez, A. Avendano, D. Berman, H. N. Alshareef, B. E. Gnade and M. Quevedo-Lopez, Rev. Mex. Fis. 57 (2), 19-21 (2011).
• A flexible organic active matrix circuit fabricated using novel organic thin film transistors and organic light-emitting diodes, G. Gutierrez-Heredia, L. A. Gonzalez, H. N. Alshareef, B. E. Gnade and M. Quevedo-Lopez, Semicond. Sci. Technol. 25, 115001 (2010).