Journal article
Pyrolyzer Assisted Vapor Transport Deposition of Antimony-Doped Cadmium Telluride
IEEE journal of photovoltaics, pp 1-10
05 Dec 2025
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
In this study, we developed a new method for in situ Sb doping of CdTe thin films combining vapor transport deposition with a Group V pyrolyzer to address Sb doping concentration and doping efficiency. The Sb doped CdSeTe (CdSeTe:Sb) films were deposited in solar cell structures under variations of Sb dopant source heater, vapor pyrolyzer temperature, and Cd vapor excess. Results indicate that although these parameters do not affect the CdTe morphology or crystal structure, they critically influence doping efficiency and trap concentration. Capacitance-voltage measurements show that a higher dopant heater (T D ) or pyrolyzer (T P ) temperature leads to higher net carrier concentration, achieving a net carrier concentration of 10 16 cm −3 and 20% doping efficiency with a T D /T P combination of 600 °C/1100 °C. By tuning the Cd/Sb flux ratio during CdSeTe:Sb deposition, the lowest defect concentration is achieved at Cd/Sb of 1.4:1, which produced the best V OC CdSeTe:Sb cell. This demonstrates a path to produce high net carrier concentration polycrystalline CdTe thin film with a low concentration of dopant-induced defects.
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Details
- Title
- Pyrolyzer Assisted Vapor Transport Deposition of Antimony-Doped Cadmium Telluride
- Creators
- Bin Du - University of DelawareGregory A. Manoukian - Drexel UniversityHarvey Guthrey - National Laboratory of the RockiesAayush Nahar - The Ohio State UniversityAntonio J. N. Oliveira - International Iberian Nanotechnology LaboratoryKevin D. Dobson - University of DelawareBrian McCandless - University of DelawareAaron Arehart - The Ohio State UniversityJason B. Baxter - Drexel University, Philadelphia, PA, USAWilliam N. Shafarman - University of Delaware
- Publication Details
- IEEE journal of photovoltaics, pp 1-10
- Publisher
- IEEE
- Number of pages
- 10
- Grant note
- DE-EE0009344 / Solar Energy Technologies Office (10.13039/100011883) U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy National Renewable Energy Laboratory (10.13039/100006233) Alliance for Sustainable Energy, LLC DE-AC36-08GO28308 / U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Solar Energy Technologies U.S. Department of Energy (10.13039/100000015)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering; College of Engineering
- Web of Science ID
- WOS:001632001000001
- Scopus ID
- 2-s2.0-105024134822
- Other Identifier
- 991022145427504721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Energy & Fuels
- Materials Science, Multidisciplinary
- Physics, Applied