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All Journal Jurnal Spektra INDONESIAN JOURNAL OF APPLIED PHYSICS Adi Widya : Jurnal Pengabdian Masyarakat
Yofentina Iriani
Jurusan Fisika FMIPA Universitas Sebelas Maret, 2Program Studi Fisika FKIP Universitas Sebeles Maret Jl. Ir. Sutami No 36A Surakarta
Astronomy Energy Materials Science & Nanotechnology Physics Social Sciences Other

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STUDI PEMBALIKAN POLARISASI DAN MODEL HISTERISIS PADA MATERIAL LAPISAN TIPIS BARIUM STRONSIUM (Ba0,5 Sr 0,5TiO3 ) DIDADAH Pb, Mg dan Cu Yoga Raksa, Teguh; Hikam, Muhammad; Iriani, Yofentina
Jurnal Spektra Vol 15, No 1 (2014): Spektra: Jurnal Fisika dan Aplikasinya
Publisher : Jurnal Spektra

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Abstract

Switching phenomenon inBIST thin film will be studiedusing bulk ferroelectric material approach. Static and dynamic  approach will be formulated by combination of Landau – Devonshire (LD) and Landau – Kalatnikov (LK) equation to determined maximum and minimum of switching current. Hysteresis loop was developed using sinusoidal electrical field  response by variation in frequency and amplitude of electrical field to describe hysteresis model of BST. Keywords: Switching Phenomenon , Hysterisis Model, Landau Theory,BST
Pengaruh Waktu terhadap Efisiensi Dye-Sensitized Solar Cell (DSSC) Ridha Alfidharisti, Sistha; Nurosyid, Fahru; Iriani, Yofentina
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 8, No 1 (2018) : IJAP Volume 8 ISSUE 01 YEAR 2018
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v8i1.14462

Abstract

Penelitian ini mengkaji pengaruh waktu terhadap effisiensi Dye Sensitized Solar Cell (DSSC). Jarak elektroda divariasi sebesar 76 µm dan 114 µm. Karakterisasi sifat listrik menggunakan Keithley I-V meter yang dilakukan selama 21 hari dengan selang 7 hari untuk mengetahui kestabilannya. Karakterisasi I-V dengan selang waktu pengukuran menunjukkan bahwa DSSC dengan jarak elektroda 76 µm stabil hingga hari ke-7 dengan efisiensi 0,0347%. Pada jarak 114 µm stabil hingga hari ke-14 dengan efisiensi 0,0117%.
PELATIHAN PEMANFAATAN ALAT PERAGA BAGI GURU SD MUHAMMADIYAH DI SUKOHARJO DALAM MENGHADAPI ERA REVOLUSI INDUSTRI 4.0 Anwar, Fuad; Kusumandari, Kusumandari; Iriani, Yofentina; Yunianto, Mohtar
ADI WIDYA : JURNAL PENGABDIAN MASYARAKAT Vol 4, No 1 (2020): ADIWIDYA
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (485.6 KB) | DOI: 10.33061/awpm.v4i1.3135

Abstract

Community service activities for Muhammadiyah Elementary School Teachers in Polokarto Subdistrict, Sukoharjo Regency have been carried out. The background of this activity is the information obtained that the teachers in the school still use books and blackboards especially for subjects related to Science so that students become less creative and innovative thinking. activities carried out in the form of ongoing activities, namely training in the use of props style, motion and energy as many as 10 kits, presentation of the results of the practice of using props and the process of dissemination to students. The results obtained that all participants in understanding the teaching aids that have been trained, seen from the activeness of the participants, the ability of participants in the presentation and the results of dissemination to students in their respective schools
Co-Authors Anwar, Fuad Fahru Nurosyid Kusumandari, Kusumandari Mohtar Yunianto, Mohtar Muhammad Hikam, Muhammad Ridha Alfidharisti, Sistha Teguh Yoga Raksa, Teguh