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Integrated Pristine van der Waals Homojunctions for Self‐Powered Image Sensors

open access: yesAdvanced Materials, EarlyView.
Pristine van der Waals homojunctions consisting of 2H‐MoTe2 layers with asymmetric thickness are constructed to eliminate heterogenous interfaces and obtain clean boundaries. The layer‐engineered energy bands of 2H‐MoTe2 layers induce a built‐in electric field at the interface, enabling self‐powered photodetection. Furthermore, a 10 × 10 array based on
Yunxia Hu   +12 more
wiley   +1 more source

Tractable Relaxations of Composite Functions

Mathematics of Operations Research, 2022
In this paper, we introduce new relaxations for the hypograph of composite functions assuming that the outer function is supermodular and concave extendable. Relying on a recently introduced relaxation framework, we devise a separation algorithm for the graph of the outer function over P, where P is a special polytope to capture the structure of each ...
Taotao He, Mohit Tawarmalani
openaire   +2 more sources

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