Iron-Chalcogenide Based Solar Absorbers

ORAL

Abstract

Earth abundant, non-toxic solar absorbers are greatly desirable to reduce solar cell production cost. FeS$_{2}$ pyrite, with a band gap of $\sim $0.9 eV, is well known for outstanding absorption properties, yet significant photoconversion has never been achieved. Our computational and experimental study recognizes the failure mechanism of iron pyrite as an instability with respect to other Fe$_{x}$S (0.5$<$x$\le $1) metallic compositions. A set of design rules emerges for the realization of high absorption transition metal-chalcogenide absorbers. Fe$_{2}$MS$_{4}$ (M=Si,Ge) are proposed as viable candidates, and merit for solar absorber application discussed.

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Authors

  • Robert Kykyneshi

    Department of Chemistry, Oregon State University, Corvallis, OR

  • A. Knecht

    Oregon State University, University of Idaho, Department of Chemistry, Oregon State University, Corvallis, OR, School of EECS, Oregon State University, Corvallis, OR, National Renewable Energy Laboratory, Golden, CO, Oregon Health and Science University, Linfield College, Purdue University, National Institute of Standards and Technology, Montana State University, University of British Columbia, University of Washington, Cornell University, Philipps-University, 35032 Marburg, Germany, University of Arizona, Tucson, Arizona 85721, Oregon State University, Corvallis, OR 97331, Physics Department, SUNY Binghamton, Physics Department, Oregon State University, Argonne National Laboratory

  • A. Knecht

    Oregon State University, University of Idaho, Department of Chemistry, Oregon State University, Corvallis, OR, School of EECS, Oregon State University, Corvallis, OR, National Renewable Energy Laboratory, Golden, CO, Oregon Health and Science University, Linfield College, Purdue University, National Institute of Standards and Technology, Montana State University, University of British Columbia, University of Washington, Cornell University, Philipps-University, 35032 Marburg, Germany, University of Arizona, Tucson, Arizona 85721, Oregon State University, Corvallis, OR 97331, Physics Department, SUNY Binghamton, Physics Department, Oregon State University, Argonne National Laboratory

  • A. Knecht

    Oregon State University, University of Idaho, Department of Chemistry, Oregon State University, Corvallis, OR, School of EECS, Oregon State University, Corvallis, OR, National Renewable Energy Laboratory, Golden, CO, Oregon Health and Science University, Linfield College, Purdue University, National Institute of Standards and Technology, Montana State University, University of British Columbia, University of Washington, Cornell University, Philipps-University, 35032 Marburg, Germany, University of Arizona, Tucson, Arizona 85721, Oregon State University, Corvallis, OR 97331, Physics Department, SUNY Binghamton, Physics Department, Oregon State University, Argonne National Laboratory

  • A. Knecht

    Oregon State University, University of Idaho, Department of Chemistry, Oregon State University, Corvallis, OR, School of EECS, Oregon State University, Corvallis, OR, National Renewable Energy Laboratory, Golden, CO, Oregon Health and Science University, Linfield College, Purdue University, National Institute of Standards and Technology, Montana State University, University of British Columbia, University of Washington, Cornell University, Philipps-University, 35032 Marburg, Germany, University of Arizona, Tucson, Arizona 85721, Oregon State University, Corvallis, OR 97331, Physics Department, SUNY Binghamton, Physics Department, Oregon State University, Argonne National Laboratory

  • A. Knecht

    Oregon State University, University of Idaho, Department of Chemistry, Oregon State University, Corvallis, OR, School of EECS, Oregon State University, Corvallis, OR, National Renewable Energy Laboratory, Golden, CO, Oregon Health and Science University, Linfield College, Purdue University, National Institute of Standards and Technology, Montana State University, University of British Columbia, University of Washington, Cornell University, Philipps-University, 35032 Marburg, Germany, University of Arizona, Tucson, Arizona 85721, Oregon State University, Corvallis, OR 97331, Physics Department, SUNY Binghamton, Physics Department, Oregon State University, Argonne National Laboratory

  • A. Knecht

    Oregon State University, University of Idaho, Department of Chemistry, Oregon State University, Corvallis, OR, School of EECS, Oregon State University, Corvallis, OR, National Renewable Energy Laboratory, Golden, CO, Oregon Health and Science University, Linfield College, Purdue University, National Institute of Standards and Technology, Montana State University, University of British Columbia, University of Washington, Cornell University, Philipps-University, 35032 Marburg, Germany, University of Arizona, Tucson, Arizona 85721, Oregon State University, Corvallis, OR 97331, Physics Department, SUNY Binghamton, Physics Department, Oregon State University, Argonne National Laboratory

  • A. Knecht

    Oregon State University, University of Idaho, Department of Chemistry, Oregon State University, Corvallis, OR, School of EECS, Oregon State University, Corvallis, OR, National Renewable Energy Laboratory, Golden, CO, Oregon Health and Science University, Linfield College, Purdue University, National Institute of Standards and Technology, Montana State University, University of British Columbia, University of Washington, Cornell University, Philipps-University, 35032 Marburg, Germany, University of Arizona, Tucson, Arizona 85721, Oregon State University, Corvallis, OR 97331, Physics Department, SUNY Binghamton, Physics Department, Oregon State University, Argonne National Laboratory

  • A. Knecht

    Oregon State University, University of Idaho, Department of Chemistry, Oregon State University, Corvallis, OR, School of EECS, Oregon State University, Corvallis, OR, National Renewable Energy Laboratory, Golden, CO, Oregon Health and Science University, Linfield College, Purdue University, National Institute of Standards and Technology, Montana State University, University of British Columbia, University of Washington, Cornell University, Philipps-University, 35032 Marburg, Germany, University of Arizona, Tucson, Arizona 85721, Oregon State University, Corvallis, OR 97331, Physics Department, SUNY Binghamton, Physics Department, Oregon State University, Argonne National Laboratory