Insights into the LiMnO Cathode Stability in Aqueous Electrolytes.

LiMnO (LMO) cathodes present large stability when cycled in aqueous electrolytes, contrasting with their behavior in conventional organic electrolytes in lithium-ion batteries (LIBs). To elucidate the mechanisms underlying this distinctive behavior, we employ unconventional characterization techniques, including variable energy positron annihilation lifetime spectroscopy (VEPALS), tip-enhanced Raman spectroscopy (TERS), and macro-Raman spectroscopy (with tens of μm-size laser spot). These still rather unexplored techniques in the battery field provide complementary information across different length scales, revealing previously hidden features.

Structural and vibrational properties of SbS: Practical methodologies for accelerated research and application of this low dimensional material.

Recently, the interest for the family of low dimensional materials has increased significantly due to the anisotropic nature of their fundamental properties. Among them, antimony sulfide (SbS) is considered a suitable material for various solid-state devices. Although the main advantages and physicochemical properties of SbS are known, some doubtful information remains in literature and methodologies to easily assess its critical properties are missing.

Raman scattering and spectroscopic ellipsometry studies of SbS and SbSe bulk polycrystals.

Antimony sulfide (SbS) and antimony selenide (SbSe) compounds have attracted considerable attention for applications in different optoelectronic devices due to their notable optical and electrical properties, and due to the strong anisotropy of these properties along different crystallographic directions. However, the efficient use of these promising compounds still requires significant efforts in characterization of their fundamental properties. In the present study, Raman scattering and spectroscopic ellipsometry were used to investigate the vibrational and optical properties of SbSe and SbS bulk polycrystals grown by the modified Bridgman method.

Development of mobile compatible software for cognitive-communication disorder in individuals with Alzheimer's disease.

Background: Alzheimer's disease (AD) is a progressive neurodegenerative disease. Cognitive functions and communication skills worsen as the disease progresses, thereby reducing patients' independence levels. Therefore, recommending software that can be used at home may be a useful means of slowing down the cognitive and communicative decline in AD.