Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook
By Deep Jariwala, Artur R. Davoyan, Joeson Wong, Harry A. Atwater. 2017
298 citations recorded by the source corpus.
Two-dimensional (2D) semiconductors provide a unique opportunity for optoelectronics due to their layered atomic structure and electronic and optical properties. To date, a majority of the application-oriented research in this field has been focused on field-effect electronics as well as photodetectors and light emitting diodes. Here we present a perspective on the use of 2D semiconductors for photovoltaic applications. We discuss photonic device designs that enable light trapping in nanometer-thickness absorber layers, and we also outline schemes for efficient carrier transport and collection. We further provide theoretical estimates of efficiency indicating that 2D semiconductors can indeed be competitive with and complementary to conventional photovoltaics, based on favorable energy bandgap, absorption, external radiative efficiency, along with recent experimental demonstrations. Photonic and electronic design of 2D semiconductor photovoltaics represents a new direction for realizing ultrathin, efficie...
Subfields: Biomedical Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/c724fb248d8b5f113242c220c0eb6081708d30a9
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In Biomedical Engineering
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Citations in the corpus
- A roadmap for electronic grade 2D materials (2019, background): “[29] Jariwala D, Davoyan A R, Wong J and Atwater H A 2017 Van”
- Exciton physics and device application of two-dimensional transition metal dichalcogenide semiconductors (2018, background): “validate the lasing action in TMDs. Photovoltaic solar cells. Owing to their strong optical absorption in the solar spectral region [59], favorable band gaps for both single-junction and tandem cells [127] and high internal radiative efficiencies [42], TMDs provide an opportunity for the realization”