Article Per Year (5 Year)
p-Index From 2019 - 2024
0.61
P-Index
This Author published in this journals
All Journal Wahana Fisika : Jurnal Fisika dan Terapannya
Endi Suhendi
Scopus ID : 56069603900 - Departemen Pendidikan Fisika - FPMIPA - UPI
Astronomy Earth & Planetary Sciences Engineering Materials Science & Nanotechnology Physics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Analisis Sifat Elektronik LaFeO3 co-doping Gd dan Co menggunakan Density Functional Theory dengan Generalized Gradient Approximation-Perdew--Burkew--Ernzerhof revised for solids untuk Aplikasi Sensor Gas Aseton Hendi Haryadi; Edi Suprayoga; Endi Suhendi
Wahana Fisika Vol 7, No 2 (2022): December
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/wafi.v7i2.51439

Abstract

An analysis of the electronic properties of the LaFeO3 couple doping Gd and Co for acetone gas sensors has been carried out using Density Functional Theory with Generalized Gradient Approximation-Perdew-Burkew-Ernzerhof revised for solids (GGA-PBEsol). Changes in the electronic properties resulting from the adsorption mechanism are discussed here. The simulation results show that the band gap energy for LaFeO3 co-doped Gd and Co before and when exposed to acetone gas molecules are ± 0.501 eV and ± 0.103 eV respectively, with adsorption energy of 0.458 eV. This change in band gap energy indicates that an adsorption-oxidation mechanism has occurred in the system, which is supported by the adsorption energy data. This mechanism is the basic mechanism for gas sensors to work. With this mechanism, LaFeO3 co-doping Gd and Co can be used as candidates for gas sensor applications, especially for acetone gas.
Pengaruh Penambahan Rgo Pada Lafeo3 Yang Didoping Co Terhadap Energi Adsorpsi Molekul Etanol Menggunakan Density Functional Theory Untuk Sensor Gas Alta Ridho Anugrah; Andhy Setiawan; Yuyu Rachmat Tayubi; Ahmad Aminudin; Lilik Hasanah; Siti Kudnie Sahari; Endi Suhendi
Wahana Fisika Vol 8, No 2 (2023): December
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/wafi.v8i2.62210

Abstract

LaFeO3 (LFO) material has been widely used as a gas sensor construction material. Although LFO has been widely applied to gas sensors, the selectivity and sensitivity as well as the working temperature of gas sensors are still not optimal. In this study, the LFO was Co-doped and coated with single layer rGO to analyze its sensitivity and selectivity based on adsorption energy using Density Functional Theory (DFT). Based on this research, it was found that the presence of Co doping and rGO coating could increase the adsorption energy on the LFO. The addition of the rGO layer to the LFO increased the adsorption energy by 23.58% from -2.38 eV for Co-doped LFO to -2.93 eV when rGO was added. This shows the potential of adding rGO layers to LFO materials for sensor materials.
Co-Authors Ahmad Aminudin Alta Ridho Anugrah Andhy Setiawan Edi Suprayoga Edi Suprayoga Hendi Haryadi Lilik Hasanah Siti Kudnie Sahari Yuyu Rachmat Tayubi