Nature plays a significant role in the evolution of surfaces and interfaces in solids. Corrosion of metals1 is one such example. Interfaces are ubiquitous in almost all engineered materials2 and devices3,4 and have been known to affect the properties of interfaced materials and films.5 While the study of solid–solid interfaces represents an important and diverse area of research in materials science and engineering,6 the understanding and control7 of interfacial morphology are critical in a number of applications including nanotechnology and energy.8,9

Recent advancements in electronics and photonics have led to an evolution in bandgap-engineered structures as well as the choice of material candidates.10 While these structures utilize a variety of semiconductors, interfacial stress becomes an inherent issue.11 Methods that address interfacial stress and the associated strain12 as well as the chemistry,13 thermodynamics14 and roughness15 have been illustrated in a number of studies in the literature.

In general, processes such as annealing, diffusion, ion implantation, oxidation and thin/thick film deposition techniques/epitaxy are some of the methods that lead to stress/strain in solid–solid interfaces. Examples of well-studied solid–solid interfaces in the literature include Si-SiO216,17 and Ge-Si.18,19 Recent developments in the bandgap engineering of strained monolayer and bilayer 2D materials20 make the study of interfaces and films even more interesting and challenging.

To read or download any of the papers, follow the URL http://link.springer.com/journal/11837/71/10/page/1 to the table of contents page for the October 2019 issue (vol. 71, no. 10). The second part of the focused topic of JOM, Properties of Interfaced Materials and Films: Part II, will be published in December 2019.

  • “Antibacterial Silver Nanoparticles Supported on Graphene Oxide with Reduced Cytotoxicity” by Carolina Angulo-Pineda, Patricia Palma, Julian Bejarano, Ana Riveros, Marcelo Kogan, and Humberto Palza.

  • “A ‘Press and Go’ Thin Biofuel Cell Patch for Power Generation” by Biao Leng, Kavya Vanamamulai, Qin Zhong, Iqbal Sherif, Nuggehalli M. Ravindra, and Zafar Iqbal.

  • “Effect of Interface Structure on the Hydrophobicity, Mechanical and Optical Properties of HfO2/Mo/HfO2 Multilayer Films” by P. Dubey, Anil K. Battu, V. Shutthanandan, and C.V. Ramana.

  • “Optical and Electrical Properties of Transparent Conductive NTTO/Cu/NTTO Multilayer Films Deposited by Magnetron Sputtering” by Uang Liu, Siming Zhu, and Baokun Song.

  • “Nitrogen Incorporation Induced Soft-to-Hard Transition Observed in the Mechanical Properties of Amorphous Niobium Oxide Films” by C. Orozco, O. R. Nunez, N. R. Murphy, J.G. Jones, and C.V. Ramana.

  • “Strain Rate Sensitivity of the Nanoindendation Creep of Ag, Cu, & Ni Thin Films” by Y. S. Mohammed, D.S. Stone, and A.A. Elmustafa.

  • “Comparative Study on the Oxidation Behavior of Austenitic and Ferritic Heat-Resistant Stainless Steels at High Temperatures” by Yuqing Zhou, Dening Zou, Yang Pang, Tongyu Wei, Wei Zhang, Yingbo Zhang, Libo Tong, Xiang Lv, and WanWan Chen.