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All Journal POSITRON Jurnal Mechanical ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Rekayasa Mesin JRST (Jurnal Riset Sains dan Teknologi) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Barometer Jurnal Teknik Mesin Jurnal Teknik Mesin Indonesia Jurnal Ilmiah Matematika dan Pendidikan Matematika (JMP) Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Wahana Pendidikan Relativitas : Jurnal Riset Inovasi Pembelajaran Fisika Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya Jaliye: Jurnal Abdimas, Loyalitas, dan Edukasi
Najmudin Fauji
Universitas Singaperbangsa Karawang
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Journal : POSITRON

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Pengaruh NaClO2 terhadap Membran Nanofiber Polisulfon dengan Metode Electrospinning Fauji, Najmudin; Kusumaatmaja, Ahmad; Triyana, Kuwat
POSITRON Vol 7, No 2 (2017)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1433.482 KB) | DOI: 10.26418/positron.v7i2.1996

Abstract

Polisulfon merupakan polimer termoplastik yang banyak digunakan dalam pembuatan membran karena ketangguhan dan stabilitasnya pada suhu tinggi. Dalam penelitian ini, dibuat membran polisulfon kosentrasi 20% dengan metode electrospinning. Selanjutnya pada larutan polisulfon konsentrasi 20% dilakukan penambahan NaClO2 0,015 gram, 0,020 gram, dan 0,030 gram. Material-material pada membran tersebut diidentifikasi dengan menggunakan FTIR, sedangkan morfologi permukaan membran diamati dengan SEM. Hasil spektrum FTIR menunjukkan tidak adanya ikatan pada penambahan NaClO2. Ini berarti, tidak terjadi perubahan sifat pada membran sebelum dan setelah ditambahkan NaClO2. Diameter fiber membran polisulfon konsentrasi 20% dengan penambahan NaClO2 0,015 gram mengalami perubahan menjadi lebih kecil dari diameter fiber membran polisulfon konsentrasi 20%. Diameter membran polisulfon 20% memiliki diameter rata-rata nanofiber (801±185) nm, sedangkan diameter membran polisulfon 20% dengan penambahan NaClO2 0,015 gram memiliki diameter rata-rata nanofiber (252±57) nm. Ini berarti penambahan NaClO2 pada larutan polisulfon 20% berpengaruh pada perubahan diameter. Pada membran polisulfon 20% dengan penambahan NaClO2 0,020 gram dan 0,030 gram tidak terbentuk membran (hanya terbentuk spray).  
Effect of Doping Density and Parasitic Resistances on The Performance of Perovskite Solar Cells-based Graphene Oxide as Hole Transport Layer by SCAPS-1D Fauji, Najmudin; Kardiman, Kardiman; Suci, Farradina Choria; Hakim, Muhammad Fahmi; Efelina, Vita; Widianto, Eri
POSITRON Vol 14, No 2 (2024): Vol. 14 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v14i2.74606

Abstract

Perovskite solar cells (PSCs) have demonstrated remarkable improvement and promise to be produced as large-scale, low-cost devices. Several resistive losses, such as the loss current, the trapping, and the recombination of charge carriers, significantly inhibited the performance of PSCs. Typically, the series resistance (RS) and shunt resistance (RSH) of the devices influence these kinds of losses. In this study, we conduct a simulation analysis to investigate the effect of doping density and parasitic resistances (RS and RSH) on the performance of PSCs-based graphene oxide (GO) as a hole transport layer (HTL) using the SCAPS-1D. The doping density variations in HTL demonstrate improved power conversion efficiency (PCE) and fill factor (FF) as the doping density increases. Both RS and RSH significantly affect the PSC performance, as they control the shape and slopes of the current density (J-V) characteristic. The optimization method produced impressive results, including an open-circuit voltage of 0.94 V, a short-circuit current density of 22.51 mA.cm−2, a fill factor of 78.92%, and a power conversion efficiency of 16.75%. This study leads to a basic understanding of the physics of PSC devices. The proposed design provides a systematic analysis method for photovoltaic science and technology.
Co-Authors Aeni, Alfieta Rohmaful Anjani, Ratna Dewi Billy Nugraha Dewi Marlina Dian Budhi Santoso Dwika Daffa Ashari Efelina, Vita Endah Purwanti Eri Widianto Fajri Julian Habibberi Agil Rabani Hakim, Muhammad Fahmi Hanifi, Rizal Hasanah, Putri Nur Hutama, Dimas Ekaditya Ibrahim Ibrahim Ibrahim Ibrahim Ihsan Budiman Iman Dirja Iqbal Maulana Jojo Sumarjo Kardiman Kardiman, Kardiman Kusumaatmaja, Ahmad Kuwat Triyana Luthfi Rachman Sidqi Ma'mun Abdul Karim Mahendra, Bhisma Marno, Marno Muhamad Rizky Adipratama Muhammad Aizul Haq Muhammad Alfarhan Ficki Muhammad Nur Yasin Naubnome, Viktor Noviana Nurhikmat Oktaviandy, Nadya Rachma Padilah, Tesa Nur Rahmat, Natasya Shafira Putri Reni Rahmadewi Reza Setiawan Rifki Maulana Sidik Riza Ibnu Adam Rizal Hanifi Sarah Dampang Siswadi Siswadi Slamet Abadi Sobur, Susilawati Sri Bintang Abdul Rohman Suci, Farradina Choria Sugiarto, Amalia Rizka Suhelmi, Muhamad Fadhlan Suryadi, Cahya Tesa Nur Padilah Ujiburrahman, Ujiburrahman Umi Nuraini, Umi Uut Ulis Utomo Vita Efelina Vita Efelina Widianto, Eri Widianto, Eri Wilda, Saniatun YULIASARI, FITRI