Our GeSn PL study published on JVST B was selected as a featured article.
Our UHV-CVD system has the new capability of growing GeSn using precursor SnD4.
So far in year of 2014, our group has published 13 conference papers and 16 journal papers. We will continue the momentum and head towards a higher level achievement.
Our recent research on GeSn photodetector was published in Applied Physics Letter. The peak responsivity of 1.63 A/W exceeds that of comercial available InGaAs and Ge photovoltaic detectors. The work on material growth was accepted by Journal of Crystal Growth.
Congratulations for the graduation of two students from our research group. Ben Conley completed his Ph.D. degree with the work in GeSn optoelectronic devices. Yiyin Zhou complete his M.S with GeSn light-emitting devices. We appreciate their contribution in the group and wish them all the best.
We would like to welcome Alexis LaMott joining our group. Alexis is currently an undergraduate pursuing degree in EE and Phyiscs.
Our group teamed with University of Arkansas at Pine Bluff (UAPB) has received award from Air Force base on proposal “Growth and Characterization of SiGeSn. High Performance Optoelectronics Devices”.
We have firstly demonstrated the transition of GeSn from indirect to direct bandgap. This result was published in Applied Physics Letters. This was a great step on confirming the previous prediction. Also, it shows the great potential for this material to make a good optoelectronic device.
Congratulations to Aboozar Mosleh (Salman) and Yiyin Zhou for winning the poster competition in ASSET GREEN annual meeting.
Welcome to Huong Tran for joining our research group as a new Ph.D. student. She has completed her bachelor degree and moving on her graduate research.
We had a group picnic to celebrating the excellent achievement this year, especially for the GeSn deposition from CVD. Faculties and students who was involved also joined this event. We had a great time making delicious dishes and hanging out together.
Our group spinoff company Arktonics was awarded by SBIR Phase-I.
Dr. Fisher Yu was invited to give a presentation in NSF Workshop for CAREER Awardees in Photonics, CLEO 2014.
Congratulations to our growth team enable the home-built CVD machine depositing the first GeSn films. We are second research group in U.S. to have this capacity for growing GeSn using CVD.
We are glad to have two REU student joining our group for the summer, 2014. Josh M. Grant and Lucas Domulevicz are going to get involved into our researches on material growth and characterization. Plenty of scientific practices will enrich their knowledge and experience for their undergraduate life.
Congratulations to Dr. Fisher Yu for receiving the College of Engineering Research Award. He has also received tenure and got promoted to associate Professor. His outstanding work was recognized and appreciated by the college.
The group would like to congratulations to our Ph.D. student, Liang Huang, for pasting his dissertation defense and completing his Ph.D. His dissertation is “Nanofabrication of metallic nanostructures and integration with light detection devices”. We appreciate his great contribution to the group and wish him all the best on his future career.
Congratulations our Ph.D. students for passing their Ph.D. qualify exam: S.Amir Ghetmiri and P.C. Grant in MicroEP; Thach Pham and Wei Dou in EE. We are looking forward to their next success in the near future.
Congratulations to our group alumni, Dongsheng Fan, for his receiving manager award from his current employee—KLA Tencor. We are glad to hear his outstanding achievement and wish him all the best on his future career.
Farewell to our visit scholar, Dr. Hui Zhong. She completed her visiting and headed back to her institute-University of Electronic Science and Technology of China. We shared a great time working together and had a fruitful year. We really apprieciate her dedication and wish her all the best in the future.
Congratulations to Thach Pham passing his M.S. Thesis Defense in Electrical Engineering. His thesis is maily about the NW fabrication using EBL. He will continue his PhD and very likely study topics about photonic crystals.
Congratulations to P.C Grant passing his M.S. Thesis Defense! His thesis is about“Investigation of the effects of rapid thermal annealing on MBE grown GaAsBi/GaAs heterostructures for optoelectronic devices”. He will continue his work as PhD student on MBE Grown Bi compond materials and devices.
Our paper “Molecular beam epitaxial growth of Bi2Te3 and Sb2Te3 topological insulators on GaAs (111) substrates: a potential route to fabricate topological insulator p-n junction” was highlighted in American Institute of Physics (AIP) and chosen as Editor’s picks. Further, it was reported by Science Daily and EurekAlert.
We would like to welcome a new graduate student, Wei Dou. He comes from China with BS degree M.S. in Institute of Microelectronics of Chinese Academy of Sciences, China. He majored in Applied Physics. He will work on Bi material growth with MBE.
Our group would like to thank Dr. Amjad Nazzal for his generous help on building our new optical characterization setups. We wish him all the best in his future work.
Our group would like to welcome a new research scientist, Dr. Wei Du. Dr. Du has his Ph.D. Institute of Semiconductors, Chinese Acedemy of Science, Beijing, China. He specializes in semiconductor device physics and fabrication.
Our group would like to welcome a new undergraduate student, Huong Tran. Huong is pursuing her B.S. degree in Department of Electrical Engineering at University of Arkansas. She will work on her honor thesis jointly in our group and Dr. El-Shenawee’s group.
Congratulations to Dr. Yu on receiving DARPA MTO award based on his proposal “GeSn/Si Avalanche Photodetectors on Si substrates”.
Congratulations to Dr. Yu on receiving NSF Conference support for 4th International Workshop on Bismuth-Containing Semiconductors: Growth, Properties and Devices. This workshop will be hosted in University of Arkansas in July 2013. Dr. Yu is the co-chair of organizing committee organizing this Workshop. Workshop link
Congratulations to Ben Conley passing his Ph.D. candidacy research proposal public presentation in Program of MicroEP! He will continue his work on GeSn Devices for Group IV Optoelectronics.
Our new UHV-CVD system dedicated to SiGeSn epitaxy growth was finally approved and start running to grow Si and Ge epitaxy layers.
Our group would like to welcome a new visiting scholar, Dr. Hui Zhong. Dr. Zhong comes from University of Electronic Science and Technology of China and specializes in FBAR for RF Filters and Oscillators. We appreciate her bringing expertise and experience to our group.
Congratulations to Dr. Yu on receiving William D. Brown and Margaret A. Brown Faculty Excellence Award from Department of Electrical Engineering at University of Arkansas. Our group will receive extra support fundings from College of Engineering to support our future research.
Our group would like to thank Dr. Zafar Waqar for his many contributions to our group and wish him the best in his future career.
Congratulations to Dongsheng Fan passing his Ph.D. dissertation defense in Department of Electrical Engineering! His fantastic dissertation is entitled as “III-V bismide optoelectronic devices”. He will start working as Senior Applications Engineer at KLA-Tencor, Albany, NY in March 2013. Our group would like to thank Dr. Dongsheng Fan for his many contributions to our group and congratulate him on his advancement in career. We wish him prosperity in his future career.
We would like to welcome a new Ph.D student, Sattar Al-Kabi. He comes from Iraq with B.S and M.S degrees in Physics/Molecular and Laser at University of Baghdad.
We would like to welcome a new graduate student, Yiyin Zhou. He comes from China with BS degree in Tianjin University of Technology. He majored in Applied Physics. He will work on GeSn optoelectronic devices fabrication and characterization.
Dr. Yu will organize the 4th International Bismuth Workshop to be hosted in University of Arkansas in 2013 Summer. It will provide a chance to bring the experimentalists and theoreticians who work on Bi-containing materials for optoelectronics and thermoelectrics. Workshop link
Congratulations to Dongsheng Fan on passing his Ph.D. candidacy research proposal public presentation in Department of Electrical Engineering!
Arkansas NSF EPSCoR annual meeting was held in Springdale, AR on August 13th. Dr. Fisher Yu gave one presentation about our research for this EPRCoR project. Our group presented two posters on nanofabrication and innovative material development, respectively.
Our group presented five papers at 38th photovoltaic specialists conference (PVSC). Liang Huang presented the fabrication and characterization of integrating metallic nanostructures on c-Si solar cells. Ben Conley presented the high efficiency multijunction solar cells and thermal photovoltaic using SiGeSn materials.
Congratulations to Dr. Yu on receiving NSF CAREER award based on his proposal “High Performance III-V-Bismide Mid-Infrared Semiconductor Lasers”. He is the first faculty member receiving this award in Department of Electrical Engineering. Press release:NSF, NWAonline, U of A newswire. Our group had a great picnic at Lake Fayetteville jointed with Dr. El-Ghazaly’s and Dr. Naseem’s groups celebrating this award.
Congratulations to Liang Huang on passing his Ph.D. candidacy research proposal public presentation in MicroEP program!
One dedicated JEOL JBX-5500ZD electron beam lithography writer purchased by our NSF EPSCoR project was installed in High Density Electronics Center (HiDEC) at University of Arkansas, Fayetteville. This will greatly enhance our nano-fabrication capability in campus.
Congratulations to Ben Conley on passing Ph.D. candidacy exam in MicroEP program!
Our new UHV-CVD system dedicated to SiGeSn epitaxy growth was successfully completed and approved to start running.
Congratulations to Ben Conley on defensing his master thesis “Group IV alloy growth on silicon via ultra high vacuum chemical vapor deposition”. He will continue pursuing his Ph.D degree in our group.
Our group had a great picnic at Lake Wedington jointed with Dr. El-Ghazaly’s and Dr. Naseem’s groups celebrating the completion of our UHV-CVD machine.
We would like to welcome two new graduate students Marzia Zaman and Seyed Amir Ghetmiri. Marzia Zaman comes from Bangladesh with BS degree in University of Dhaka. She majored in Applied Physics, Electronics and Communication Engineering. Seyed Amir Ghetmiri got his bachelor degree from Physics at Shiraz University in Iran.
Our group would like to welcome two research scientists Dr. Zafar Waqar, Dr. Husam Abu-Safe and two new graduate students Perry C. Grant and Thach Pham. Dr. Zafar Waqar brings his expertise in UHVCVD, surface studies and materials characterization to our group. Dr. Husam Abu-Safe specializes in fabrication and characterization of Si based devices. Perry C. Grant got his bachelor’s degree at Southern Arkansas Univeristy and continues his Ph.D study here. Thach Pham earned his bachelor degree here at University of Arkansas, Fayetteville in Electrical Engineering and will be pursuing a Master’s degree.
2011 Arkansas NSF EPSCoR Annual Meeting is held at Heber Springs, AR. Dr. Fisher Yu gave two presentations about the fabrication facilities on campus and group research for this EPRCoR project. Liang Huang presented a poster about his nanofabrication work using E-beam lithography and focus ion beam.
Our group has been awarded one research grant from Arkansas Bioscience Institute to develop an ultra-compact, ultra-light-weight, biocompatible, embedded, and passive laser-neuron-stimulator. This device will offer a unique opportunity to test a completely new laser neuron stimulation mechanism using extremely low power.
Congratulations on Dr. Shui-Qing (Fisher) Yu for receiving the EE Outstanding Researcher Award from the University of Arkansas College of Engineering. This award is given to only one faculty member within the department each year.
Congratulations to Xianchuang Zhu for the completion of his master studies in our group.
Congratulations to our group member Ben Conley! He has been awarded a SMART Fellowship (see http://smart.asee.org/ for more information). The SMART Scholarship for Service Program has been established by the Department of Defense (DoD) to support undergraduate and graduate students pursuing degrees in Science, Technology, Engineering and Mathematics (STEM) disciplines. The program aims to increase the number of civilian scientists and engineers working at DoD laboratories. The fellowship awards payments for tuition, fees, full health insurance, $1,000 yearly cash allowance for books, and a yearly stipend based on highest level of education earned.
Our group would like to welcome a new graduate student Alan Hickerson. He got his bachelor’s degree in Electrical Engineering from Arkansas State University, Jonesboro, AR (December 2009).
Teamed with other five faculty members from UAF, NCSU and UFL, our proposal “High Frequency Devices and Circuits for Nanotubes and Nanowires” is funded by Army Research Lab. The UA tem members include Prof. Samir El-Ghazaly, Prof. Hameed Naseem, and Prof. Shui-Qing (Fisher) Yu.
Our group would like to welcome Benjamin Conley. He got his bachelor’s degree in Physics from Arkansas Tech University, Russellville, AR (May 2010).
Teamed with Dr. Naseem, Dr Yu won one Army Research Office Defense University Research Instrumentation Program (DURIP) award. This award will support Dr. Yu to develop Ultra-high Vacuum Chemical Vapor Deposition (UHVCVD) for novel Sn based group-IV optoelectronic devices fabrication.
Teamed with other 7 faculty members from UAF and UALR, our proposal “Arkansas Center for Generating Renewable Energy with Efficient Nanoplasmonics (GREEN) Solar Cells” is funded by NSF EPSCOR program. One dedicated Electron beam lithography machine and several other testing equipments will be established. This will greatly enhance the nano-fabrication capability in campus. >>Press release 1, 2 <<
Congratulations to Dongsheng Fan and Liang Huang on passing Ph.D. candidacy exam in Electrical Engineering department and MicroEP program!
Teamed with Dr. Jingbiao Cui, Dr. Yu won one Arkansas NASA EPSCOR RID award. This award will support Dr. Yu to develop ZnO nanowire based solar blind focal plane array detectors and with expectation to be followed by a major NASA EPSCOR program in next year.
The third batch of equipments arrived. They include one Nicolet 8700 FTIR, 2 cryostats, pump station, and low temperature controller. The FTIR currently can cover wavelength range from 1um to 16um and will be used for Mid-IR laser and detector characterizations. The low temperature system (down to 10 K, purchased by Dr. Ji) is essential to material and device characterizations.
Teamed with other 7 faculty members from UAF and UALR, our proposal “Arkansas Center for Generating Renewable Energy with Efficient Nanoplasmonics (GREEN) Solar Cells” is selected by Arkansas State to be submitted to 2009 NSF EPSCOR program. If it funded, UAF campus will get one dedicated Electron beam lithography machine and several other testing equipments. This will greatly enhance the in campus nano-fabrication capability.
Dr. Yu, Dr. Naseem, and Dr. Ji have decided to consolidate the optical/electrical characterization facilities for maximum use by three groups. The characterization facilities from Dr. Naseem’s group include two solar simulators, one spectrophotometer, several source meters. They will be used to construct solar cell quantum efficiency testing system, solar cell I-V testing system, and Hall measurement system. Dr. Yu’s second batch of equipments arrived and a small microbiogology lab was built.
Dr. Yu won two research grants from Arkansas Bioscience Institute. The first one is “Selective Inactivation of Virus Using Low-Power Continuous-Wave Lasers”. This program will develop advanced lasers techniques using stimulus Raman effect to selectively kill virus. The second one is “Non-(100) Based Nanostructure Superluminescent Diodes for Biomedical Imaging Application”. In this program, Dr. Yu will team with Prof. Greg Salamo and Prof. Zhiming Wang in Physics department to develop novel SLED devices for biomedical imaging applications.
Dr. Yu won “2009-10 EXTERNAL FACULTY MENTOR AWARD” sponsored by College of Engineering. The external faculty mentor award program is designed to provide newly-hired, untenured faculty with resources so that they can be mentored by established, nationally-known, off-campus researchers that can not only guide their career development but also facilitate research collaboration and submission of competitive proposals and initiation of an externally recognized and funded research program. Researchers from external institutions will be invited to UA to give seminar and discuss the potential collaboration opportunities.
Our lab renovation was finished and the first batch of equipments arrived. The first group equipments include two 4feet by 8feet optical tables, one pulsed Nd:YAG laser with 1064 nm, 532 nm, 355 nm, and 266 nm laser output, and a high resolution spectrometer equipped with extended UV CCD and PMT detectors. The equipments will be used to construct UV-VIS-NIR PL system for nanomaterial characterizations. The second group equipments include a fiber based optical spectrum analyzer, pulsed power supply, power meter, probe station. They will be used to construct a semiconductor laser characterization system.
The lab space of the Applied Nano & Bio Photonics Group is officially located in Engineering Research Center, Room 2933.
In 9/1/2009, Siddhant Ramaswamy joined the Applied Nano & Bio Photonics Group. He will be working on “Laser inactivation virus” project for his M.S. degree and also helps Dr. Yu to set up the lab.
In 8/18/2008, Dr. Shui-Qing Yu joined Electrical Engineering department at University of Arkansas as an assistant professor. He started the Applied Nano & Bio Photonics Group there and currently his research fields are Compound semiconductor optoelectronic devices, Group IV photonics, Renewable energy devices, Applied nano & biophotonics, Nanopackaging. The group webpage was launched in 9/1/2008. Thanks for the help of Dr. Ding Ding in ASU.
Asu MBE optoelectronics group has been awarded a multimillion dollar program from AFRL to study the feasibility of using monolithically integrated II/VI and II/V materials on novel substrates for ultrahigh efficiency multijunction solar cells. Dr. Shui-Qing Yu is one of the co-PIs in this research project and one of the co-inventors for this invention.
The work of Dr. Shui-Qing Yu, was recognized Feb. 9 with an award from the Waves and Devices Chapter of the Phoenix Section of the Institute for Electrical and Electronics Engineers. Yu was honored for “Technical contributions to the fabrication and development of high-efficiency light-emitting diodes for optical refrigeration applications.”
Dr. Shui-Qing Yu designed and sucessfully demonstrated the processing flow for an novel optical refrigeration device in MBE optoelectronics group, arizona state university. His contribution is the most critical step towards a practical optical refrigeration device.
Dr. Shui-Qing Yu was awarded the 2005-2006 Palais Outstanding Doctoral Student Award in department of Electrical Engineering, Arizona State University.