@article{32296,
  author = {Rachel Woods-Robinson and Yanbing Han and John S Mangum and Celeste L Melamed and Brian P Gorman and Apurva Mehta and Kristin A Persson and Andriy Zakutayev},
  title = {Combinatorial Tuning of Structural and Optoelectronic Properties in Cu Zn1−S},
  abstract = {<p><span>P-type transparent conductors (TCs) are important enabling materials for optoelectronics and photovoltaics, but their performance still lags behind n-type counterparts. Recently, semiconductor Cu</span><span><em>x</em></span><span>Zn</span><span>1−<em>x</em></span><span>S has demonstrated potential as a p-type TC, but it remains unclear how properties vary with composition. Here, we investigate Cu</span><span><em>x</em></span><span>Zn</span><span>1−<em>x</em></span><span>S across the entire alloy space (0&nbsp;≤&nbsp;</span><em>x</em><span>&nbsp;≤ 1) using combinatorial sputtering and high-throughput characterization. First, we find a metastable wurtzite alloy at an intermediate composition between cubic endpoint compounds, contrasting with solid solutions or cubic composites (ZnS:Cu</span><span><em>y</em></span><span>S) from the literature. Second, structural transformations correlate with shifts in hole conductivity and absorption; specifically, conductivity increases at the wurtzite phase transformation (</span><em>x</em><span>&nbsp;≈ 0.19). Third, conductivity and optical transparency are optimized within a "TC regime" of 0.10&nbsp;&lt;&nbsp;</span><em>x</em><span>&nbsp;&lt; 0.40. This investigation reaffirms Cu</span><span><em>x</em></span><span>Zn</span><span>1−<em>x</em></span><span>S as a promising, tunable, multifunctional semiconductor alloy, provides new insight into composition-dependent evolution of structure and properties, and informs future research into device applications.</span></p>},
  year = {2019},
  journal = {Matter},
  volume = {1},
  pages = {862 - 880},
  month = {10/2019},
  issn = {25902385},
  doi = {10.1016/j.matt.2019.06.019},
  language = {eng},
}