APL Materials -
High Impact Open Access Journal
in Functional Materials Science
APL Materials is a new open access journal featuring original research on significant topical issues within the field of materials science. The journal emphasizes very high quality, timely work. Our vision is to be the foremost, rapid publication, high impact Materials journal.
Validity of rigid band approximation of PbTe thermoelectric materials
Yoshiki Takagiwa, Yanzhong Pei, Gregory Pomrehn, and G. Jeffrey Snyder
The tuning of carrier concentration through chemical doping is very important for the optimization of thermoelectric materials. Traditionally, a rigid band model is used to understand and guide doping in such semiconductors, but it is not clear whether such an approximation is valid. This letter focuses on the changes in the electronic density of states (DOS) near the valence band maximum for different p-type dopants (Na, K, Tl, or vacancy on Pb site) maintaining the high symmetry of the NaCl structure. Na- and K-doped, and vacancy-introduced PbTe show a clear rigid-band like change in DOS unlike that concluded from supercell based calculations.
Transparent, flexible, and solid-state supercapacitors based on graphene electrodes
Y. Gao, Y. S. Zhou, W. Xiong, L. J. Jiang, M. Mahjouri-samani, P. Thirugnanam, X. Huang, M. M. Wang, L. Jiang, and Y. F. Lu
In this study, graphene-based supercapacitors with optical transparency and mechanical flexibility have been achieved using a combination of poly(vinyl alcohol)/phosphoric acid gel electrolyte and graphene electrodes. An optical transmittance of ∼67% in a wavelength range of 500-800 nm and a 92.4% remnant capacitance under a bending angle of 80° have been achieved for the supercapacitors. The decrease in capacitance under bending is ascribed to the buckling of the graphene electrode in compression. The supercapacitors with high optical transparency, electrochemical stability, and mechanical flexibility hold promises for transparent and flexible electronics.
High quality transparent TiO2/Ag/TiO2 composite electrode films deposited on flexible substrate at room temperature by sputtering
Aritra Dhar and T. L. Alford
Multilayer structures of TiO2/Ag/TiO2 have been deposited onto flexible substrates by room temperature sputtering to develop indium-free transparent composite electrodes. The effect of Ag thicknesses on optical and electrical properties and the mechanism of conduction have been discussed. The critical thickness (tc) of Ag mid-layer to form a continuous conducting layer is 9.5 nm and the multilayer has been optimized to obtain a sheet resistance of 5.7 Ω/sq and an average optical transmittance of 90% at 590 nm. The Haacke figure of merit (FOM) for tc has one of the highest FOMs with 61.4 × 10−3 Ω−1/sq.
Spatial mapping of exciton lifetimes in single ZnO nanowires
J. S. Reparaz, G. Callsen, M. R. Wagner, F. Güell, J. R. Morante, C. M. Sotomayor Torres, and A. Hoffmann
The authors investigate the spatial dependence of the exciton lifetimes in single ZnO nanowires. We have found that the free exciton and bound exciton lifetimes exhibit a maximum at the center of nanowires, while they decrease by 30% towards the tips. This dependence is explained by considering the cavity-like properties of the nanowires in combination with the Purcell effect. The authors show that the lifetime of the bound-excitons scales with the localization energy to the power of 3/2, which validates the model of Rashba and Gurgenishvili at the nanoscale.
Introduction from the Editor
Letter from the Editor: http://aplmaterials.aip.org/about/letter_editor
Professor Judith L. MacManus-Driscoll
University of Cambridge
Chang-Beom Eom (University of Wisconsin-Madison, WI, USA)
Seunghun Hong (Seoul National University, Seoul, Korea)
Brian LeRoy (University of Arizona, AZ, USA)
Zhongfan Liu (Peking University, Beijing, China)
Lukas Schmidt-Mende (University of Konstanz, Konstanz, Germany)
Yusuke Yamauchi (National Institute for Materials Science (NIMS), Ibaraki, Japan)
APL Materials Offers
- Fair, fast, rigorous and constructive peer review
- Rapid publication
- Free and permanent online access to your article
- Article level metrics; analytics to measure reader-interest in your article
- Worldwide media coverage for your work
- Creative Commons licensing so you retain copyright
- Hosting on AIP’s Scitation platform making your work highly discoverable
Scope of the Journal
- Nanomaterials and Nanostructures
- Electronic, Magnetic & Optical Materials
- Organic Materials
- Energy and Environment Materials
- Carbon and Amorphous Materials
- General Functional Materials
and more on Scope and Coverage
How it works
We charge an article processing fee of $2,200*, which can be covered by your institution or grant funding body. This fee covers the costs of reviewing, producing, hosting and archiving your article.
- Authors will not be charged a processing fee for the first 100 papers accepted for publication.
*Waivers or reduced fees may be available for certain authors, for example, from low GDP countries.
News and Announcements
- AIP is proud to announce Stuart S. P. Parkin, Frances M. Ross, William Carter, Meicheng Li, and Gyu-Chul Yi joining the Editorial Board.
- AIP welcomes Chang-Beom Eom, Seunghun Hong, Brian LeRoy, Zhongfan Liu, Lukas Schmidt-Mende and Yusuke Yamauchi to join APL Materials as Associate Editors
- AIP is pleased to announce the appointment of Judith MacManus-Driscoll as editor of its new open access, rapid publication journal, APL Materials. Read Press Release.
The 55th Electronic Materials Conference (EMC)
26 -27 June, South Bend, IN
ICMAT 2013 – 7th International Conference on Materials for Advanced Technology
30 June- 5 July 2013, Suntec, Singapore
Workshop on Programmable Self-assembly of Matter
30 June – 3 July, New York City, NY
ISPSA 2013 - The 16th International Symposium on the Physics of Semiconductors and Applications
2 -5 July 2013, Jeju, Korea