K
Kaifeng Chen
Researcher at Stanford University
Publications - 32
Citations - 4409
Kaifeng Chen is an academic researcher from Stanford University. The author has contributed to research in topics: Light-emitting diode & Thermophotovoltaic. The author has an hindex of 15, co-authored 28 publications receiving 2376 citations.
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Proceedings ArticleDOI
Graph Convolutional Neural Networks for Web-Scale Recommender Systems
TL;DR: A novel method based on highly efficient random walks to structure the convolutions and a novel training strategy that relies on harder-and-harder training examples to improve robustness and convergence of the model are developed.
Proceedings ArticleDOI
Graph Convolutional Neural Networks for Web-Scale Recommender Systems.
TL;DR: In this paper, a data-efficient graph convolutional network (GCN) algorithm PinSage is proposed to generate embeddings of nodes that incorporate both graph structure as well as node feature information.
Journal ArticleDOI
A Comprehensive Photonic Approach for Solar Cell Cooling
TL;DR: In this article, the authors proposed a photonic approach by simultaneously performing radiative cooling while also selectively utilizing sunlight and showed that applying this photonic cooler to a solar panel can lower the cell temperature by over 5.7 °C.
Journal ArticleDOI
Robust Pinhole-free Li3N Solid Electrolyte Grown from Molten Lithium.
Yanbin Li,Yongming Sun,Allen Pei,Kaifeng Chen,Arturas Vailionis,Yuzhang Li,Guangyuan Zheng,Jie Sun,Yi Cui,Yi Cui +9 more
TL;DR: A novel synthesis method by reacting clean molten lithium foil directly with pure nitrogen gas is reported to generate instantaneously a pinhole-free and ionically conductive α-Li3N film directly bonded onto Li metal foil, which is chemically stable, isolating the reactive metallic lithium from liquid electrolyte, and prevents continuous electrolyte consumption during battery cycling.
Journal ArticleDOI
Self-adaptive radiative cooling based on phase change materials
TL;DR: This work designs a photonic structure that can adaptively turn 'on' and 'off' radiative cooling, depending the ambient temperature, without any extra energy input for switching.