Kevin D. Dobson
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View article: Correction to “Flexible Cation Exchange Environment via Ligand-Free Metal Chalcogenide Thin Films”
Correction to “Flexible Cation Exchange Environment via Ligand-Free Metal Chalcogenide Thin Films” Open
[This corrects the article DOI: 10.1021/acsnanoscienceau.4c00023.].
View article: Effects of Antimony Doping on CdTe Solar Cell Performance
Effects of Antimony Doping on CdTe Solar Cell Performance Open
Effects of Antimony Doping on CdTe Solar Cell Performance
View article: Development of an Optical Library for Coevaporated CdSe<i> <sub>x</sub> </i>Te<sub>1−</sub> <i> <sub>x</sub> </i>
Development of an Optical Library for Coevaporated CdSe<i> <sub>x</sub> </i>Te<sub>1−</sub> <i> <sub>x</sub> </i> Open
The conversion efficiency of CdTe solar cells may be improved by bandgap engineering, i.e., changing the bandgap value through the addition of Se in the absorber. The Se alloying enables a short-circuit current density improvement, as it l…
View article: Flexible Cation Exchange Environment via Ligand-Free Metal Chalcogenide Thin Films
Flexible Cation Exchange Environment via Ligand-Free Metal Chalcogenide Thin Films Open
Cation exchange (CE) has emerged as a premier postsynthetic method to carefully tune the chemical composition and properties of nanocrystals with excellent morphology retention. However, reaction conditions are typically dictated by the ub…
View article: Cd-excess and CdCl2 treatment effects on Sb-doped CdTe devices
Cd-excess and CdCl2 treatment effects on Sb-doped CdTe devices Open
Cd-excess and CdCl2 treatment effects on Sb-doped CdTe devices
View article: Sb doping via drive-in diffusion as an alternative to in-situ doping in VTD
Sb doping via drive-in diffusion as an alternative to in-situ doping in VTD Open
Group-V doping can enhance the efficiency of CdTe photovoltaic devices by increasing the open-circuit voltage (Voc), if long lifetimes can be retained and radiative voltage loss can be avoided. In this preliminary study, ex-situ Sb doping …
View article: Optical Characterization of Sb-doped CdTe and CST Thin Films
Optical Characterization of Sb-doped CdTe and CST Thin Films Open
Optical Characterization of Sb-doped CdTe and CST Thin Films
View article: Investigation of properties of CdSeTe/Sb and Sb/CdSeTe stacks
Investigation of properties of CdSeTe/Sb and Sb/CdSeTe stacks Open
Investigation of properties of CdSeTe/Sb and Sb/CdSeTe stacks. Effects of incorporating Sb layers before and after CdSeTe alloy were examined. Cu(In,Ga)Se2 films showed significantly increased grain size with inclusion of an Sb.
View article: Defects and doping of Sb-doped CdTe
Defects and doping of Sb-doped CdTe Open
Hall measurements in bulk single crystals, and in contrast to much larger values from previous calculations. We also find that the Sb-related AX centers are not major compensation centers in Sb-doped CdTe.
View article: Antimony‐doping approaches for Vapor Transport CdSeTe
Antimony‐doping approaches for Vapor Transport CdSeTe Open
a hole concentration of 1016 cm-3 and 10% doping efficiency when the dopant heater is 600C and the pyrolyzer temperature is 1100C. This demonstrates a path to produce high hole concentration polycrystalline CdTe film with a low concentrati…
View article: Pyrolyzer assisted Sb-doped CdTe deposition
Pyrolyzer assisted Sb-doped CdTe deposition Open
a hole concentration of 1016 cm-3 and 10% doping efficiency when the dopant heater is 600C and the pyrolyzer temperature is 1100C. This demonstrates a path to produce high hole concentration polycrystalline CdTe film with a low concentrati…
View article: Methylamine Post-Deposition Treatments of Vapor-Deposited Perovskite Thin Films
Methylamine Post-Deposition Treatments of Vapor-Deposited Perovskite Thin Films Open
While the development of methylammonium lead iodide (MAPbI(3)) perovskite for photovoltaics has grown rapidly, the growth of high-quality material from vapor processes continues to be difficult due to challenges including crystallinity con…
View article: Thin Films as Versatile Substrates for Cation Exchange Reactions Under a Broad Range of Conditions
Thin Films as Versatile Substrates for Cation Exchange Reactions Under a Broad Range of Conditions Open
View article: The growth of methylammonium lead iodide perovskites by close space vapor transport
The growth of methylammonium lead iodide perovskites by close space vapor transport Open
This is the first demonstration of an all-vapor close space vapor transport process to deposit methylammonium lead iodide perovskites.
View article: Electroplating of Sn Film on Nb Substrate for Generating Nb₃Sn Thin Films and Post Laser Annealing
Electroplating of Sn Film on Nb Substrate for Generating Nb₃Sn Thin Films and Post Laser Annealing Open
Controlling film quality of Nb₃Sn is critical to its SRF cavity performance. The state-of-the-art vapor diffusion approach for Nb₃Sn deposition observed surface roughness, thin grain regions, and misfit dislocations which negatively affect…
View article: Analysis of silicon wafer surface preparation for heterojunction solar cells using X-ray photoelectron spectroscopy and effective minority carrier lifetime
Analysis of silicon wafer surface preparation for heterojunction solar cells using X-ray photoelectron spectroscopy and effective minority carrier lifetime Open
View article: The promise of solution-processed Fe2GeS4 thin films in iron chalcogenide photovoltaics
The promise of solution-processed Fe2GeS4 thin films in iron chalcogenide photovoltaics Open
View article: High-efficiency Thin-film Fe<sub>2</sub>SiS<sub>4</sub> and Fe<sub>2</sub>GeS<sub>4</sub>-based Solar Cells Prepared from Low-Cost Solution Precursors. Final Report
High-efficiency Thin-film Fe<sub>2</sub>SiS<sub>4</sub> and Fe<sub>2</sub>GeS<sub>4</sub>-based Solar Cells Prepared from Low-Cost Solution Precursors. Final Report Open
The project aimed to provide solar energy education to students from underrepresented groups and to develop a novel, nano-scale approach, in utilizing Fe2SiS4 and Fe2GeS4 materials as precursors …
View article: Sulvanite (Cu3VS4) nanocrystals for printable thin film photovoltaics
Sulvanite (Cu3VS4) nanocrystals for printable thin film photovoltaics Open
View article: Diffusion of sodium in single crystal CuInSe2
Diffusion of sodium in single crystal CuInSe2 Open
The incorporation of sodium from sodium fluoride in single-crystal CuInSe2 (CIS) is investigated to provide insight into the intra-granular aspects of sodium incorporation in CIS-based thin films. Sodium was incorporated by evaporating NaF…
View article: Understanding the Effect of Na in Improving the Performance of CuInSe<sub>2</sub> Based Photovoltaics
Understanding the Effect of Na in Improving the Performance of CuInSe<sub>2</sub> Based Photovoltaics Open
Cu(In,Ga)Se2 (CIGS) thin film photovoltaic technology is in the early stages of commercialization with an annual manufacturing capacity over 1 GW and has demonstrated the highest module efficiency of any of the thin film technol…