Former Group Members
Group founder
Prof. Dr. Roland Weingärtner
Dr. Roland Weingärtner founded the Materials Science Group of the Physics Section at the Pontificia Universidad Católica del Perú (PUCP) in 2005 in the frame work of a research project funded for 5 years by the Deutsche Forschungsgemeinschaft (DFG) in collaboration with the Friedrich Alexander Universität (FAU). The DFG project in 2005 included the setup of a new laboratory, installing a RF-sputtering deposition system. This enabled the deposition and study of the light emission properties of amorphous wide-bandgap semiconductors SiC, SiN and AlN doped with rare earths (RE). During his leadership, the group has expanded its activities covering wider research topics which have been supported by different projects in recent years. In 2018, after 13 years of pioneering work in Peru, Dr. Weingärtner returned to Germany to continue his career. For both his professional and private future, the Materials Science Group wishes Dr. Weingärtner all the best and continued success.
roland.weingaertner@freenet.de
MSc. Julian Lich
Development of an optomechanical system to enable in-situ spectroscopy of luminescent thin-films doped with rare earths during deposition by RF magnetron sputtering.
julian-andreas.lich@tu-ilmenau.de
Lic. MSc. Liz Margarita Montañez
Synthesis and optical characterization of amorphous silicon carbide (a-SiC) thin films and related materials.
BSc. Wilson Aponte Huamantinco
Investigation of thermal treatments for thin films of SiC and AlN doped with Tb and deposited on different substrates.
Dr. Ing. Oliver Erlenbach
In 2005, Oliver Erlenbach student at the Friedrich-Alexander University Erlangen-Nuremberg came to the PUCP in order to perform his PhD in materials science, financed by the DAAD. This PhD has been carried out within the framework of cooperation with the PUCP and University of Erlangen. A major part of the scientific research for this PhD took place in Lima, Peru, where Oliver Erlenbach participated in establishing a new material research laboratory for the production of thin films using RF magnetron sputtering deposition in the framework of a DFG/BMZ project. In his PhD thesis, he focused on the optical characterization of lanthanide doped (SiC)1-x(AlN)x-films in particular.
MSc. Gonzalo Galvez
Setup and improvements of the trial rf- magnetron sputtering system. Preparation of (SiC)1-x(AlN)x thin filmsand their structural and optical characterization.
MSc. Katia Zegarra
Optical and vibrational properties of amorphous silicon nitrite thin films (a-SiN) grown by rf magnetron sputtering.
Jose Antonio Beccera
Effect of the oxidation on stability of amorphous silicon nitrite thin films (a-SiN).
MSc. Johan Llamoza
The spectra generated from thin films in the order of nanometers (200-500 nm) produce additional spectrum fringes that impede the analysis of samples, furthermore it produces fictitious transmittance greater than 100%. This work aims to mathematically describe these fringes, to implement the Hodrick-Prescott algorithm, which estimates the cyclical part of a data sequence, baseline data in our case. With the specter corrected estimate the number bonds of the sample, and percentage of crystallinity. Finally study the degradation of the samples.
MSc. Sandro Espinoza
Synthesis and characterization of hydrogenated aluminum nitride (AlN:H) thin films for photovoltaic applications.
MSc. Luis Conde
Electrical characterization of semiconductor thin films, metal sheets, metal-semiconductor contacts, field effect transistors and solar cells. Designed, developed, and installed the custom applications & automation of measurement systems and atmospheric sensors in LabView.
MSc. Paul Llontop
Electrical characterization of passivating AlN thin films on silicon for applications in silicon solar cells. Low temperature generation for electrical characterization of semiconductor thin films.
MSc. Carlos Enrique Torres
Fabrication of indium tin oxide (ITO) thin films doped with Tb rare earths by RF magnetron sputtering and study of theirs optical, electrical and luminescence properties.
Lic. MSc. Betty Mercedes Flores Mariños
I am currently working on the synthesis and characterization of different polymeric structures for applications in perovskite solar cells and evaluate the effect on the efficiency and stability of the devices.
MSc. Jorge Dulanto C
Study of optical and electronic properties of passivation materials for silicon solar cells. Characterization of MIS (metal-insulator-semiconductor) devices using the High Frequency Capacitance-Voltage method. Investigation of implementation of rare earth into passivation materials for up-/down-conversion
Lic. MSc. Karem Yoli Tucto
Development of wide band gap semiconductors doped with rare earths for applications in opto-electronics and photovoltaics.
MSc. Loreley Flores
Study of the optical emission properties of Tb rare earths in different matrix materials (SiC, AlN, TiO2).
MSc. María del Carmen Mejia
Study and characterization of Photoelectrochemical Cells (PEC) for solar water splitting, based on Hydrogenated Amorphous Silicon Carbide Semiconductor.
MSc. Carlos Enrique Torres
Fabrication of indium tin oxide (ITO) thin films doped with Tb rare earths by RF magnetron sputtering and study of theirs optical, electrical and luminescence properties
MSc. Luis Jonathan Pretell
Electrical Characterization of aluminum contacts manufactured by physical vapor deposition on silicon wafers of different doping.
BSc. Rafael Pulido Del Pino
BSc. Enrique Ventura Ponce
Estudy of the optical properties of thin films of silicon nitrite (SiN): Change of optical parameters with the concentration of nitrogen.
BSc. Miguel Sevillano
Study of AlN:H single layers as a passivation material for silicon wafers in photovoltaic applications by means mainly of high frequency capacitance-voltage measurements.
BSc. José Luis León
Investigation of optical properties of thin films using variable transmittance spectrum in order to optimize the thickness and the complex refraction index of finite series type.
BSc. Aissa Muñoz
Study of optical and structural properties of thin multilayers of a-SiC and / or a-AlN doped with Tb-Yb and / or Er-Yb. Characterized by the techniques of dispersive energy spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), UV-Vis spectroscopy and X-ray reflectometry (XRR).
Sebastian Gomez
Optical properties of amorphous hydrogenated SiC thin films: study of the behavior of the vibrational modes of the compounds of thin films exposed to heat treatments.
MSc. Paul Llontop
Electrical characterization of passivating AlN thin films on silicon for applications in silicon solar cells. Low temperature generation for electrical characterization of semiconductor thin films.
List of former Master students – Lista de antiguos alumnos de máster
- Barbara Reinartz, Institut für Werkstoffwissenschaften VI der Universität Erlangen-Nürnberg, 2012.
reinartz.barbara@googlemail.com
- Sabine Zitzelsberger, Institut für Werkstoffwissenschaften VI der Universität Erlangen-Nürnberg, 2010.
zitzlsberger-sabine@gmx.de
- Andreas Münch, Institut für Werkstoffwissenschaften VI der Universität Erlangen-Nürnberg, 2008.
andym2110@googlemail.com
List of former Bachelor students – Lista de antiguos alumnos de licenciatura
- Stefan Kreppel, Institut für Werkstoffwissenschaften VI der Universität Erlangen-Nürnberg, 2011.
- Stefan Möckel, Institut für Werkstoffwissenschaften VI der Universität Erlangen-Nürnberg, 2011.
- Max Shiefbahn, Institut für Werkstoffwissenschaften VI der Universität Erlangen-Nürnberg, 2011.
- Anja Winterstein, Institut für Werkstoffwissenschaften VI der Universität Erlangen-Nürnberg, 2010.
- Thomas Hupfer, Institut für Werkstoffwissenschaften VI der Universität Erlangen-Nürnberg, 2010.
- Matthias Steidl, Institut für Werkstoffwissenschaften VI der Universität Erlangen-Nürnberg, 2010.
- Nam Gutzeit, Fakultätsübergreifendes Institut für Werkstofftechnik der Technischen Universität Ilmenau, 2009.
- Stefan Woetzel, Fakultätsübergreifendes Institut für Werkstofftechnik der Technischen Universität Ilmenau, 2008.
- David Lorenz, Fakultätsübergreifendes Institut für Werkstofftechnik der Technischen Universität Ilmenau, 2008
- Rolf Grieseler, Fakultätsübergreifendes Institut für Werkstofftechnik der Technischen Universität Ilmenau, 2008