Production of manganese-doped ZnO-based NTC thermistor via combustion reaction

IF 1.8 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

MRS Communications Pub Date : 2024-03-18 DOI:10.1557/s43579-024-00542-7

Wictor Magnus Patrício Araújo de Lima, Iris Kemilly Duarte Vieira, Joélcio Lopes de Oliveira Júnior, Danniel Ferreira de Oliveira, Ramon Alves Torquato

引用次数: 0

Abstract

This study examines the effects of Mn²⁺ doping on the microstructure, morphology, and thermoresistive properties of the Zn_x-1Mn_xO system (x = 0.8, 0.15 mol), synthesized via a combustion reaction. After uniaxial pressing (191 MPa) and sintering (1373 K), the samples exhibited NTC thermistor characteristics without a second phase. The decrease in the energy gap to 2.9 eV (Mn08) and 2.69 eV (Mn15), along with average particle sizes of 8.79 µm and 2.91 µm, respectively. The parameters α, β, A, B, C, and SF highlight the influence of Mn²⁺ doping on the properties of these materials, with potential applications in NTC thermistor devices.

Graphical abstract

Abstract Image

查看原文本刊更多论文

通过燃烧反应生产掺锰氧化锌基 NTC 热敏电阻

本研究探讨了掺杂 Mn2+ 对通过燃烧反应合成的 Znx-1MnxO 体系（x = 0.8, 0.15 mol）的微观结构、形态和热阻特性的影响。经过单轴压制（191 兆帕）和烧结（1373 K）后，样品显示出无第二相的 NTC 热敏电阻特性。能隙分别降至 2.9 eV（Mn08）和 2.69 eV（Mn15），平均粒径分别为 8.79 µm 和 2.91 µm。参数α、β、A、B、C和SF突显了掺杂Mn2+对这些材料性能的影响，具有在NTC热敏电阻器件中应用的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

2.60

自引率

10.50%

发文量

166

审稿时长

>12 weeks

期刊介绍： MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.