Dear Colleagues,
Welcome to the 9th Annual CdTe Photovoltaics Workshop, sponsored by US-MAC and hosted by the Wright Center for Photovoltaics at The University of Toledo’s Brady Center. This year’s organizing committee includes: Jim Sites (CSU); Matt Reese and Lorelle Mansfield (NREL), Jim Becker (FSLR); and Ambalanath Shan, Ebin Bastola, Vijay Karade, Randy Ellingson, and Mike Heben (UT).
A light breakfast will be available both Thursday and Friday morning, with the understanding that many attendees will eat at their hotel prior to coming to the conference.
A hot lunch will be provided on Thursday and box lunches will be available on Friday. Both will have a vegan/vegetarian option.
Thursday Evening Banquet (at no charge, will be catered by Grape Leaf Diner with a variety of food options including vegetarian and vegan) for all of you attending in person, to celebrate the CdTe PV community as well as our past and future successes. Dinner will follow immediately after the close of the Thursday afternoon schedule and will be held at Wildwood Metropark, at the Ward Pavillion. Transportation will be via carpools (UToledo will have several additional drivers available for transport). The drive takes about 10 minutes, and we strongly encourage a prompt departure from UT so we'll ideally have time for a beverage and/or networking.
Looking forward to a great workshop!
The US-MAC CdTe Workshop team
| Start | Duration (min) | Presenter | Event |
|---|---|---|---|
| 8:00 AM | 30 | Gather, coffee, name tags, some food | Brady Center |
| 8:30 AM | 5 | Mike Heben | Welcome Announcements |
| 8:35 AM | 5 | CTAC Leadership (Becker, Dhere, Heben, Mansfield, Reese, Sites) | Progress Highlights Since Inception |
| Session 1: Doping | Randy Ellingson | ||
| 8:40 AM | 20 | Tim Nagle | CTAC Absorber Round Robin Results Review |
| 9:00 AM | 20 | Eric Colegrove | Single Crystal Model System Working Group Update |
| 9:20 AM | 20 | Jim Sites | Doping Tradeoffs in CdTeSe/CdTe Cells |
| 9:40 AM | 20 | Yanfa Yan | Stability of Bi– and Sb–doped CdSeTe solar cells under stress tests |
| 10:00 AM | 20 | Feng Yan | Phosphorus Vapor doped CdSeTe Solar Cells |
| 15 | Coffee Break | ||
| Session 2: Modeling, Characterization, Defect Analysis | Mike Heben | ||
| 10:45 AM | 20 | Thomas Fiducia | Local Changes in ERE Accompanying Light Soaking of CdSeTe Solar Sells |
| 11:05 AM | 20 | Arun Mannodi Kanakkithodi | Computational Library of Defect Complexes in CdSeTe |
| 11:25 AM | 20 | Rachel Kurchin | Bayesian Parameter Estimation for Device and Materials Characterization |
| 11:45 AM | 20 | Tyler Brau | Radiative defects in chloride-activated CdSe thin films |
| 12:05 PM | 20 | Mariana Bertoni | Activation Studies in CdSeTe Polycrystals and Single Crystals: Where Is the Arsenic and Where Is It Sitting? |
| 45 | Lunch at Brady Center | ||
| Session 3: Contacts, Interfaces & More on Defects | Matt Reese | ||
| 1:10 PM | 20 | Michael Walls | Analysis of the front buffer/absorber interface using High Resolution TEM and Cathodoluminescence (CL). |
| 1:30 PM | 20 | Mikhail Zamkov | Development of low-cost photon down-conversion nanomaterials for high-efficiency CdTe photovoltaic devices |
| 1:50 PM | 20 | Nick Carpenteria | Novel Solid State Cation Exchange to Fabricate CdZnTe Layers |
| 15 | Break (Photo Session) | ||
| Session 4: Materials, Modelling, and Space PV | Jim Becker | ||
| 2:25 PM | 20 | Kevin Dobson | Halide Activation of CdZnTe Solar Cells |
| 2:45 PM | 20 | Marco Nardone | Modeling Hysteresis in Cd(Se,Te) Devices |
| 3:05 PM | 20 | Randy Ellingson | Radiation Resilience of CdSeTe/CdTe PV Cells For Space Applications |
| 3:25 PM | Poster Session at PVIC | ||
| Poster Session | ||
|---|---|---|
| Ebin Bastola | Cadmium Chloride Treatment of Group-V doped Cadmium Telluride Photovoltaics | |
| Magesh Murugesan | CdSeTe crystal growth, Optical and Electrical characterization | |
| J. Drew | Bayesian Parameter Estimation (BPE) for Photovoltaic Materials Investigation | |
| Ian Glass | 2D Modeling of Inhomogeneities of Se-rich regions of CdSeTe Solar Cells | |
| Alex Ashley | CST and CdSe Front Stack and their interaction with CdCl2 Treatments | |
| Luis Carlos | Silicon carbide back buffer layers CdTe solar cells. | |
| Walajabad Sampath | CdSeTe absorber with uniform composition | |
| Andrea Mathew | Importance of CdCl2 Contamination Screening for CdTe-based Photovoltaics | |
| Aesha Patel | Identifying Suitable Front Contacts for Cd(Se,Te) Solar Cells on Space-qualified Cover Glass | |
| Scott Lambright | Remarkable Radiation Tolerance Exhibited by CdSeTe:As and CdSeTe:Cu Photovoltaic Devices | |
| Scott Wenner | Photoluminescence study of CdSe thin films | |
| Sabin Neupane | Ex-situ arsenic doping for highly efficienct CdSeTe Solar cells | |
| Manoj Jamarkattel | Study of CdSe Thin Films Deposited by Close-Spaced Sublimation | |
| Sanjeeb Budhathoki | Assessing Proton Radiation Hardness Test of Cu and Bi-doped CdSeTe Solar Cells | |
| Kiran Lamichhane | Low-Temperature Photoluminescence Study of Unitern CdSeTe Alloys | |
| Ujjwal Dhakal | Enhancing CdTe Solar Cell Performance through Optimization of Selenium Alloying and Defect Passivation | |
| Anthony Nicholson | ZnTe Back Contact Study for CdTe-Based PV | |
| Samuel S. Erickson | Effects of Space-Relevant Electron Radiation on Industry-Grade CdSeTe/CdTe Devices | |
| Vijay C. Karade | Activation Energy of “Waking-Up” Group V-doped CdSeTe through Light Soaking | |
| Aparajita Dixit | Consideration for a CdTe/CdSeTe two-terminal tandem solar cell. | |
| Daniel Shaw | Bias Dependence of Photoluminescence to Evaluate Diode Fields | |
| Niranjana Mohan Kumar | Nanoscale Insights into As Environment and Charge Collection : A close look at the CdSeTe back contact interface (TBC with FS) | |
| Wei Wang | Transparent ZnSexTe1-x Windows for n-CdTe Solar Cells | |
| Ben Montag | Single crystal growth of arsenic doped and phosphorus doped cadmium selenium telluride (CdSexTe1-x) for fundamental material characterization to improve CdTe photovoltaics | |
| Prabodika N. Kaluarachchi | Point contact for CdTe Photovoltaics using the composite of Aluminum Gallium Oxide (AlGaOx) and Single-walled Carbon Nanotubes (SWCNT)s. | |
| Mayank Mate | Preferential doping of the back surface with As to improve device performance | |
| Arun Basnet | Towards CdTe–Perovskite Tandem Solar Cells | |
| Joe Becker | Characterizing recombination inhomogeneity and its impact on Voc in CdSeTe solar cells | |
| Max Liggett | Multiscale Investigation of Defects and Failure Modes in CdTe Photovoltaics | |
| Alexander Goldstone | MBE Growth of Single-crystal p-type CdSeTe | |
| Nicholas Carpentieri | Novel Solid State Cation Exchange to Fabricate CdZnTe LayersNo | |
| Noah Kamm | Characterization of Native Oxide Layers on CdTe and MgxCd1-xTe | |
| Minhal Hasham | Rapid, Multimodal Characterization of Emergent PV Materials | |
| Gregory Manoukian | Carrier Dynamics and Photoluminescence of Sb-doped CdTe and CdSeTe | |
| Start | Duration (min) | Presenter | Event |
|---|---|---|---|
| 8:30 AM | 30 | Gather, light breakfast | Brady Center |
| Session 5: Synthesis & Doping | Jim Sites | ||
| 9:00 AM | 20 | Jim McCamy | Vitro Flat Glass CdTe PV Update |
| 9:20 AM | 20 | Amit Munshi | Understanding behavior of arsenic doping in CdTe devices with varying device structures. |
| 9:40 AM | 20 | Arivazhagan Valluvar Oli | Strain measurements in CdTe Thin Films |
| 10:00 AM | 20 | Minhal Hasham | Rapid, Multimodal Characterization of Emergent PV Materials |
| 10:20 AM | 20 | Noah Kamm | Characterization of Native Oxide Layers on CdTe and MgxCd1-xTe |
| 15 | Coffee Break | ||
| Session 6: Doping, Disorder, Hystersis & Surface Science | Adam Phillips | ||
| 10:55 AM | 20 | Hongling Lott | Experimental Investigation of Cd and Te Overpressure Effects on Arsenic Doping in CdTe |
| 11:15 AM | 20 | Chun-Sheng Jiang | Potential and doping nonuniformity of Gr-V doped CdSeTe devices by nanoelectrical probes |
| 11:35 AM | 20 | Ryan Muzzio | Effects of Oxidation and Metallization on CdTe-Based PV |
| 11:55 AM | 20 | Ed Sartor | Light hysteresis modified by front interface Se |
| 12:15 PM | 20 | Darius Kuciauskas | Electronic disorder in CdSeTe: band tails and hole traps have distinct origin, impact, interactions with dopants, and mitigation |
The workshop will be held at the Brady Center at Nitschke Hall on UT Campus, which is next door to PVIC’s research labs in the R1 Building (Research and Technology Complex 1). The closest parking lot is labeled "Area 20" on the maps shown below.
Brady Center
1610 N Westwood Ave.
Toledo, OH 43606
Research and Technology Complex 1 “R1”
2600 Dorr St., Toledo, OH 43606
Google map directions to the Brady Center at Nitschke Hall
Campus map
You are welcome to park on UT’s main campus during the CdTe PV Workshop, but you must register for a permit prior to arriving on campus to avoid a hefty fine (about $75 per day). To do so, please click on the parking icon below and fill out the form no later than Thursday morning (October 23rd), and indicate which days your vehicle will be on campus.
Your license plate must be visible to the camera-equipped parking enforcement cars that patrol the lots on a regular basis. To avoid a ticket, if your car does not have a front plate, do not back into a location where your plate will be obscured. If your license plate is not visible, you will receive a ticket.
We have reserved a block of rooms at the rate of $114 plus tax. To make a reservation call the hotel and ask for a reservation under the “University of Toledo CdTe Workshop” or reserve room by clicking this link: Hampton Inn, Toledo Westgate. Amenities include hot breakfast, free parking, and free wifi. Please keep in mind that reservations by attendees must be received on or before 10/20/25 to take advantage of the workshop rates.
Hampton Inn and Suites, Toledo Westgate
3434 Secor Road
Toledo, OH 43606
phone: 419.214.5555
The most practical airport is Detroit Metropolitan (DTW) – approx. 1hr by ground transportation.
Rental
vehicles, Uber/Lyft, and taxi are all options to consider (unfortunately there’s no dedicated shuttle).
A presentation laptop will be available, as will a laser pointer. Attendees are required to load their presentations onto a shared presentation laptop ahead of their assigned sessions.
Breakfast pastries and lunch will be served each day.
Please contact us at the following e-mail address for assitance and general questions:
cdte-workshop@utoledo.edu