文章基本信息

标题：Heterojunction Hybrid Devices from Vapor Phase Grown MoS₂
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作者：Chanyoung Yim ; Maria O'Brien ; Niall McEvoy 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2014
卷号：4
DOI：10.1038/srep05458
出版社：Springer Nature
摘要：We investigate a vertically-stacked hybrid photodiode consisting of a thin n-type molybdenum disulfide (MoS₂) layer transferred onto p-type silicon. The fabrication is scalable as the MoS₂ is grown by a controlled and tunable vapor phase sulfurization process. The obtained large-scale p-n heterojunction diodes exhibit notable photoconductivity which can be tuned by modifying the thickness of the MoS₂ layer. The diodes have a broad spectral response due to direct and indirect band transitions of the nanoscale MoS₂. Further, we observe a blue-shift of the spectral response into the visible range. The results are a significant step towards scalable fabrication of vertical devices from two-dimensional materials and constitute a new paradigm for materials engineering.