Definition of barrier layer
: the surface of contact between a semiconductor (such as cuprous oxide) and a metal (such as copper) that acts as an alternating current rectifier or photovoltaic cell when included in a circuit
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“Barrier layer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/barrier%20layer. Accessed 16 May. 2022.
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