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research article
High Photovoltaic Quantum Efficiency in Ultrathin van der Waals Heterostructures
2017
We report experimental measurements for ultrathin (<15 nm) van der Waals heterostructures exhibiting external quantum efficiencies exceeding 50% and show that these structures can achieve experimental absorbance >90%. By coupling electromagnetic simulations and experimental measurements, we show that pn WSe2/MoS2 heterojunctions with vertical carrier collection can have internal photocarrier collection efficiencies exceeding 70%.
Type
research article
Authors
Wong, Joeson
•
Jariwala, Deep
•
•
Tat, Kevin
•
Davoyan, Artur R.
•
Sherrott, Michelle C.
•
Atwater, Harry A.
Publication date
2017
Published in
Volume
11
Issue
7
Start page
7230
End page
7240
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
May 9, 2019
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