Wen Hui (Sophia) Cheng

Graduate Student



Sophia Cheng began pursing her Ph.D. in Materials Science at Caltech in 2014 after finishing her M.S. and B.S. degrees at National Cheng Kung University, Taiwan. Her previous work includes the researches of thin film transistor (TFT), organic photovoltaics (OPV) and resistive memory device (RRAM) in Professor Jen-Sue Chen’s lab. As a member in the Atwater Group, she will focus on mesoscale design of photoelectrochemical fuel cells with JCAP.

Available Publications


Monolithic Photoelectrochemical Device for Direct Water Splitting with 19% Efficiency

Wen-Hui Cheng, Matthias H. Richter, Matthias M. May, Jens Ohlmann, David Lackner, Frank Dimroth, Thomas Hannappel, Harry A. Atwater, and Hans-Joachim Lewerenz
ACS Energy Letters (2018) - Photocatalysis

Hot Hole Collection and Photoelectrochemical CO2 Reduction with Plasmonic Au/p-GaN Photocathodes

Joseph S. DuChene, Giulia Tagliabue, Alex J. Welch, Wen-Hui Cheng and Harry A. Atwater
Nano Letters (2018) - Photocatalysis

Dynamically controlled Purcell enhancement of visible spontaneous emission in a gated plasmonic heterostructure

Yu-Jung Lu, Ruzan Sokhoyan, Wen-Hui Cheng, Ghazaleh Kafaie Shirmanesh, Artur R. Davoyan,
Ragip A. Pala, Krishnan Thyagarajan & Harry A. Atwater
Nature Communications (2017) - Metamaterials Plasmonics

Near-Unity Unselective Absorption in Sparse InP Nanowire Arrays

Katherine T. Fountaine, Wen-Hui Cheng, Colton R. Bukowsky, and Harry A. Atwater
ACS Photonics (2016) - Nanowire Photovoltaics