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Article
Publication date: 28 February 2025

Junaid Munir, Saif M.H. Qaid, Faiza Firdous, Nassar N. Asemi, Abdullah Ahmed Ali Ahmed and Quratul Ain

To determine the electrical, structural, optical and transport properties calculated using WIEN2k code.

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Abstract

Purpose

To determine the electrical, structural, optical and transport properties calculated using WIEN2k code.

Design/methodology/approach

By employing the WIEN2k code, we have theoretically examined the physical properties of the full-Heusler Te2AcGa alloy. The FP-LAPW technique is utilized for theoretical calculations.

Findings

An indirect bandgap of 0.42 eV is seen with the GGA potential. An enhancement in bandgap with a value of 0.97 eV is observed with mBJ potential. The density of states is determined to verify the band structure profile. The dynamical and structural stability is attained through the computations. The electron density contour plot is utilized to explore the bonding nature of the compound. Optical properties have been calculated with respective potentials showing significant absorption in the visible region. Furthermore, thermoelectric properties have been evaluated to confirm the potential of Te2AcGa for thermoelectric devices. At elevated temperatures, the ZT with mBJ potential obtained a large value of 0.8.

Research limitations/implications

High absorption and ZT values make the Te2AcGa alloy have potential for optoelectronic and renewable energy devices.

Originality/value

In the submitted manuscript, first principle calculations are carried out for the first time to study the structural, dynamic, electronic, optical and thermoelectric properties of the full-Heusler Te2AcGa alloy. Modified Becke–Johnson (mBJ) exchange-correlation potential provides very accurate results. The bandgap profiles and related properties are calculated in the present work. The entire work gives useful results of fundamental importance, which can be utilized for the fabrication of optoelectronic and thermoelectric applications.

Details

Multidiscipline Modeling in Materials and Structures, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1573-6105

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Article
Publication date: 6 December 2024

Kailash Chand Sharma and Rishabh Shrivastava

This study aims to examine the current state of makerspaces in Indian academic libraries. The history of makerspace and its introduction in academic libraries have been elaborated…

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Abstract

Purpose

This study aims to examine the current state of makerspaces in Indian academic libraries. The history of makerspace and its introduction in academic libraries have been elaborated and analysed. Makerspaces of three different academic libraries in Northern India have been compared in the study.

Design/methodology/approach

The data was collected using a well-structured interview schedule as well as complemented from the website of the institutions in the study. Field visits to the makerspaces were also conducted for understanding how users are working in makerspaces and the different benefits they gained from such working environments. The different tools and facilities provided by the makerspaces were also analysed and it was found that a versatile group of users can easily collaborate with the help of such interactive and lively environment.

Findings

It was found that tools like 3D printers enhanced the benefits and enriched creativity amongst non-tech savvy users too, by giving them a chance of using such tools. Interaction between different groups of people belonging to different fields and having varied experiences and expertise was also reported to be an important aspect of makerspaces. These places also were found to support the “Do it Yourself” culture among youngsters using the libraries. The study concludes that makerspaces are innovative ways in which libraries can encourage more and more users towards the libraries.

Originality/value

To the best of the authors’ knowledge, this study is one of the first studies on makerspaces in academic libraries in context of a growing economy like India. Makerspaces can be significantly useful for proper space management and utilisation of resources for academic libraries.

Details

Library Hi Tech News, vol. 42 no. 1
Type: Research Article
ISSN: 0741-9058

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