Journal article

Machine Learning Optimization of p-Type Transparent Conducting Films

Lingfei Wei, Xiaojie Xu, undefined Gurudayal, James Bullock, Joel W Ager

Chemistry of Materials | American Chemical Society | Published : 2019

Abstract

p-Type transparent conducting materials (p-TCMs) are important components of optoelectronic devices including solar cells, photodetectors, displays, and flexible sensors. Cu–Zn–S thin films prepared by chemical bath deposition (CBD) can have both high transparency in the visible range (>80%) as well as excellent hole conductivity (>1000 S cm–1). However, the interplay between the deposition parameters in the CBD process (metal and sulfur precursor concentrations, temperature, pH, complexing agents, etc.) creates a multidimensional parameter space such that optimization for a specific application is challenging and time-consuming. Here we show that strategic design of experiment combined with..

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Grants

Awarded by Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division of the U.S. Department of Energy - Division of Materials Science, Office of Science, DOE


Awarded by U.S. Department of Energy, National Nuclear Security Administration


Funding Acknowledgements

Chemical bath deposition and electronic characterization were performed in the Electronic Materials Program, which is supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division of the U.S. Department of Energy under contract no. DE-AC02-05CH11231, which is supported by the Division of Materials Science, Office of Science, DOE. Lawrence Livermore National Laboratory is operated by Lawrence Livermore National Security, LLC, for the U.S. Department of Energy, National Nuclear Security Administration under contract DE-AC52-07NA27344. We appreciate technical support from Jilin Hu on Python programming and helpful scientific discussions with Mark Hettick, Zemin Zhang, Eric Sirott, Jiancheng Zhou, and Quanhao Shen. L.W. acknowledges fellowship support from the Chinese Scholarship Council.