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All Journal Teknik dan Ilmu Komputer Jurnal Informatika dan Teknik Elektro Terapan JFA (Jurnal Fisika dan Aplikasinya) Jurnal Engine: Energi, Manufaktur, dan Material
Richie Estrada
Universitas Kristen Krida Wacana
Computer Science & IT Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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CLAP SWITCH TO CONTROL ROOM LIGHT Estrada, Richie
Teknik dan Ilmu Komputer vol. 1 no. 2 April-Juni 2012
Publisher : Teknik dan Ilmu Komputer

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Abstract

Lamp switch is a very important component of switching on or extinguish lights. In general, the system which is used to control lamps is still being manually switched on or off. The manual system control is often difficult for humans in terms of operations. This paper presents an automatic switch circuit as an alternative to manual switches. Automatic switch is used as a clapping sound control.Keywords : lamp, manual switch, automatic switch, control, clapping sound
Rancang Bangun Alat Stereo Rotator and Blender Mandagi, Albert; Estrada, Richie; Andhieka, Stanley
Teknik dan Ilmu Komputer Vol. 03 No. 10 April-Juni 2014
Publisher : Teknik dan Ilmu Komputer

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Abstract

Stereo Rotator and Blender dirancang untuk menyempurnakan sistem stereo pada peralatan audio, karena pada beberapa peralatan audio masih memiliki sistem suara stereo yang terbatas. Dengan adanya alat ini diharapkan dapat berguna untuk melengkapi sistem audio yang memiliki sistem suara stereo yang terbatas. Rangkaian yang digunakan terdiri dari rangkaian penguat membalik, rangkaian penguat tak membalik, rangkaian penguat selisih, rangkaian penyangga, rangkaian pengatur putaran, dan rangkaian pengatur campuran. Rangkaian pengatur putaran dan rangkaian pengatur campuran yang terdapat pada alat Stereo Rotator and Blender berfungsi untuk membalik kedua kanal stereo dan memutar bidang stereo sesuai kehendak hati, sehingga suara musik atau vokalnya dapat dicampur dan diputar.Kata kunci: stereo, rotator, blender, audio
Sound Switch Dengan Dimmer Menggunakan Decade Counter CD4017 Lesmana, Jeffery Febrian; Mandagi, Albert; Estrada, Richie
Teknik dan Ilmu Komputer vol. 2 no. 6 April-Juni 2013
Publisher : Teknik dan Ilmu Komputer

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Engineering of Organic Photodetector For Visible Light Detection By Vacuum Thermal Deposition Method Chairadeya, Chairadeya; Sumanto, Budi; Estrada, Richie; Biring, Sajal; Liu, Shun-Wei
Jurnal Fisika dan Aplikasinya Vol 20, No 1 (2024)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v20i1.17927

Abstract

This study aimed to determine the correlation between the photoactive layer thickness of an organic photodetector device and its performance. This research engineered organic photodetectors using zinc phthalocyanine (ZnPc) and fullerene (C60) as photoactive layers for detecting visible light using the vacuum thermal deposition method. Fabrication of organic photodetectors is done by varying the thickness of the photoactive layer at the same ratio. Of the four engineered organic photodetector variations, an active layer thickness of 90 nm produced the best organic photodetector performance. This photodetector has a dark current density of 1.43 × 10-6 A cm-2, a photocurrent density of 6.19 × 10-4 A cm-2, an external quantum efficiency (EQE) of 73.48% at a wavelength of 630 nm, with a responsivity of 0.39 A W-1 at a bias voltage of -3 V.
REVIEW: Perkembangan Sel Surya Perovskite Noto Susanto Gultom; Ihsanul Mubarok; Hafsah Mutmainnah; Wina Mardhatillah; Ayi Bahtiar; Richie Estrada; Aisyah Amirah Fathinah
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 1 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i1.2141

Abstract

Perovskite is one of the materials used for solar panels that offers high efficiency comparable to conventional silicon-based solar cells. This article aims to analyze the latest developments in perovskite solar cells from various important aspects, starting from material development, various fabrication techniques, as well as opportunities and challenges in its development. Perovskite is a type of material that has a crystal structure with the chemical formula ABX3. Perovskite fabrication can be done using various methods such as spin coating, spray coating, doctor blading, inkjet printing and others. In its development, various innovations have been made, such as the development of cells without a hole transport layer (HTL-free), the addition of ethylenediammonium cations (en), and efforts to replace lead with more environmentally friendly materials such as tin. The results of the study showed that the power conversion efficiency (PCE) of perovskite solar cells has reached more than 25%. Although this development is promising, there are still major challenges in maintaining the long-term stability of the device, especially related to degradation due to humidity, heat, and prolonged lighting. The development of fabrication techniques that can mass produce perovskite solar cells with high performance and stable reliability is essential. With continued research and material innovation, perovskite solar cells have great potential in supporting sustainable clean energy transitions such as their applications in building-integrated photovoltaic (BIPV) systems, wearable electronic devices, and agrivoltaic systems.
PURWARUPA SEL SURYA BERLAPISKAN MATERIAL SENG OKSIDA (ZnO) MENGGUNAKAN METODE DOCTOR BLADE COATING Sutanto, Kevin; Harsono, Budi; Estrada, Richie; Liman, Johansah
Jurnal Informatika dan Teknik Elektro Terapan Vol. 13 No. 3 (2025)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v13i3.7234

Abstract

Kebutuhan akan sumber energi alternatif yang bersih dan berkelanjutan mendorong pengembangan teknologi sel surya, salah satunya dengan memanfaatkan material semikonduktor lapisan tipis. Seng oksida (ZnO) merupakan salah satu kandidat material yang menjanjikan karena memiliki celah pita lebar, transparansi optik tinggi, serta kemudahan dalam proses fabrikasi. Penelitian ini membahas pengembangan purwarupa sel surya berbasis lapisan tunggal ZnO dengan prosedur pelapisan menggunakan metode doctor blade pada substrat PCB berpola sisir sebagai elektroda konduktif. Pasta ZnO dengan konsentrasi 40% disintesis dan diaplikasikan secara merata, kemudian dikeringkan untuk membentuk lapisan homogen. Dua variasi celah elektroda, yaitu 1 mm dan 2 mm, digunakan untuk mengevaluasi pengaruh konfigurasi elektroda terhadap kinerja perangkat. Karakterisasi dilakukan secara optikal melalui pengukuran transmitansi dan absorbansi, serta secara elektrikal dengan pengujian tegangan keluaran pada kondisi gelap, paparan sinar matahari, dan sumber cahaya buatan. Hasil menunjukkan bahwa lapisan ZnO memiliki absorbansi tinggi pada panjang gelombang 300–500 nm, yang penting dalam proses fotogenerasi muatan. Sementara itu, sel surya dengan celah 2 mm menunjukkan kinerja elektrikal lebih baik dibandingkan dengan celah 1 mm, ditandai oleh tegangan bocor lebih rendah dan tegangan keluaran lebih tinggi.
Co-Authors Aisyah Amirah Fathinah Albert Mandagi Ayi Bahtiar Biring, Sajal Budi Harsono Budi Sumanto Chairadeya, Chairadeya Hafsah Mutmainnah Ihsanul Mubarok Jeffery Febrian Lesmana Johansah Liman Liu, Shun-Wei Noto Susanto Gultom Stanley Andhieka Sutanto, Kevin Wina Mardhatillah