Ray L Withers
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Explore the profile of Ray L Withers including associated specialties, affiliations and a list of published articles.
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21
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211
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Recent Articles
1.
Liu X, Zhang F, Long P, Lu T, Zeng H, Liu Y, et al.
Adv Mater
. 2018 Dec;
30(44):e1801619.
PMID: 30589463
The anomolous photovoltaic (APV) effect is an intriguing phenomenon and rarely observed in bulk materials that structurally have an inversion symmetry. Here, the discovery of such an APV effect in...
2.
Photovoltaic Effect of a Ferroelectric-Luminescent Heterostructure under Infrared Light Illumination
Mai H, Lu T, Li Q, Sun Q, Vu K, Chen H, et al.
ACS Appl Mater Interfaces
. 2018 Aug;
10(35):29786-29794.
PMID: 30088753
In this report, a ferroelectric-luminescent heterostructure is designed to convert infrared light into electric power. We use BiFeO (BFO) as the ferroelectric layer and YO:Yb,Tm (YOT) as the upconversion layer....
3.
Mai H, Lu T, Li Q, Liu Z, Li Y, Kremer F, et al.
ACS Appl Mater Interfaces
. 2018 Mar;
10(15):12781-12789.
PMID: 29521082
The effect of above-band gap photons on the domains of the BiFeO (BFO) thin film was investigated via piezoresponse force microscopy and Kelvin probe force microscopy. It is found that...
4.
Sun Q, Zheng C, Huston L, Frankcombe T, Chen H, Zhou C, et al.
J Phys Chem Lett
. 2017 Jun;
8(14):3249-3255.
PMID: 28661671
Ionic codoping offers a powerful approach for modifying material properties by extending the selection of potential dopant ions. However, it has been a major challenge to introduce certain ions that...
5.
Sun Q, Cortie D, Zhang S, Frankcombe T, She G, Gao J, et al.
Adv Mater
. 2017 Jan;
29(11).
PMID: 28112832
Highly efficient visible-light catalysts are achieved through forming defect-pairs in TiO nanocrystals. This study therefore proposes that fine-tuning the chemical scheme consisting of charge-compensated defect-pairs in balanced concentrations is a...
6.
Lu T, Studer A, Cortie D, Lau K, Yu D, Feng Y, et al.
ACS Appl Mater Interfaces
. 2016 May;
8(23):14313-7.
PMID: 27214052
This work systematically investigated the structure and property of the near-surface and bulk regions of Pb0.99(Nb0.02Zr0.73Sn0.21Ti0.04)O3 ceramics using a combination of X-ray and neutron diffraction, piezoresponse force microscopy, and conventional...
7.
Lu T, Studer A, Noren L, Hu W, Yu D, McBride B, et al.
Sci Rep
. 2016 Mar;
6:23659.
PMID: 27025685
Electric-field-induced, antiferroelectric-ferroelectric (AFE-FE) phase transitions are common for AFE materials. To date, the strain and preferred orientation evolution as well as the role of the intermediate FE state during the...
8.
Wind J, Auckett J, Withers R, Piltz R, Maljuk A, Ling C
Acta Crystallogr B Struct Sci Cryst Eng Mater
. 2015 Dec;
71(Pt 6):679-87.
PMID: 26634724
The Type II phase in the Bi1 - xWxO1.5 + 1.5x system is shown to have a (3 + 3)-dimensional modulated δ-Bi2O3-related structure, in which the modulation vector ℇ `locks...
9.
Dong W, Hu W, Berlie A, Lau K, Chen H, Withers R, et al.
ACS Appl Mater Interfaces
. 2015 Oct;
7(45):25321-5.
PMID: 26512874
Stimulated by the excellent colossal permittivity (CP) behavior achieved in In+Nb co-doped rutile TiO2, in this work we investigate the CP behavior of Ga and Nb co-doped rutile TiO2, i.e.,...
10.
Zhu Y, Withers R, Bourgeois L, Dwyer C, Etheridge J
Nat Mater
. 2015 Sep;
14(11):1142-9.
PMID: 26322717
Self-assembled nanostructures with periodic phase separation hold great promise for creating two- and three-dimensional superlattices with extraordinary physical properties. Understanding the mechanism(s) driving the formation of such superlattices demands an...