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All Journal Jurnal Nasional Komputasi dan Teknologi Informasi Jambura Journal of Food Technology JSAI (Journal Scientific and Applied Informatics) JAGO TOLIS : Jurnal Agrokompleks Tolis Journal of Artificial Intelligence and Digital Business Jurnal Abdimas Terapan Jurnal Ilmu Komputer dan Sistem Informasi Journal Of Renewable Energy Engineering KETIK : Jurnal Informatika Journal Of Software Engineering And Communication Journal Of Fisheries Agribusiness Jurnal Cendekia Ilmiah PESHUM KREATIF: Jurnal Pengabdian Masyarakat Nusantara Jurnal Kendali Teknik dan Sains JTPG (Jurnal Teknologi Pertanian Gorontalo)
Fuad Pontoiyo
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PENINGKATAN PERFORMA DYE SENSITIZED SOLAR CELL (DSSC) BERBASIS TiO2 MESOPORI DAN PEWARNA ALAMI ANTOSIANIN: PENGARUH SURFAKTAN DAN WAKTU ADSORPSI Sarinah Pakpahan; Yunita Djamalu; Fuad Pontoiyo
Journal Of Renewable Energy Engineering Vol. 4 No. 2 (2026): Journal Of Renewable Energy Engineering (Oktober)
Publisher : Program Vokasi-Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jree.v4i2.108

Abstract

ABSTRACT Dye-sensitized solar cells (DSSCs) based on natural dyes offer a low-cost alternative, but their efficiency remains limited. This study examined the influence of TiO2 photoanode pore structure on DSSC performance. Mesoporous TiO2 was synthesized by CTAB-assisted coprecipitation (TiO2–CTAB) and compared with TiO2 prepared by the same route without CTAB. Red spinach (Amaranthus tricolor) extract, expected to be rich in betacyanins, was used as the sensitizer, and cells with an active area of 1 cm² (n = 3) were tested under a 150 W halogen lamp at 100 mW/cm². XRD showed pure anatase with Scherrer crystallite sizes of 10.0 and 9.1 nm without and with CTAB, respectively. N2 physisorption revealed type IV isotherms; CTAB only slightly changed the BET surface area (95.1 vs. 98.3 m²/g) but increased the total pore volume by 47% and the average pore diameter from 6.4 to 9.1 nm. UV-Vis spectra indicated comparable approximate band gaps (≈2.9–3.0 eV) and stronger visible-light scattering for TiO2–CTAB. On CTAB-free TiO2, efficiency increased with dye soaking time, reaching 1.25% at 6 h. At 6 h, the TiO2–CTAB photoanode achieved 1.83% (Jsc = 6.50 mA/cm², Voc = 0.52 V, FF = 0.54), 46% higher than CTAB-free TiO2. The improvement was dominated by Jsc and is attributed to larger, more accessible mesopores rather than a larger surface area, whereas the slightly lower FF suggests higher electron-transport resistance in the more porous, low-temperature-processed film. These results indicate that pore-structure engineering is a promising route for improving natural-dye DSSCs.   ABSTRAK Dye-sensitized solar cell (DSSC) berbasis pewarna alami menawarkan biaya yang rendah, tetapi efisiensinya masih terbatas. Penelitian ini mengkaji pengaruh struktur pori fotoanoda TiO2 terhadap kinerja DSSC. TiO2 mesopori disintesis melalui kopresipitasi berbantuan CTAB (TiO2–CTAB) dan dibandingkan dengan TiO2 yang disintesis dengan prosedur identik tanpa CTAB. Ekstrak bayam merah (Amaranthus tricolor) yang diperkirakan kaya betasianin digunakan sebagai sensitizer, dan sel dengan luas aktif 1 cm² (n = 3) diuji di bawah lampu halogen 150 W pada intensitas 100 mW/cm². Hasil XRD menunjukkan fase anatase murni dengan ukuran kristalit Scherrer 10,0 nm tanpa CTAB dan 9,1 nm dengan CTAB. Fisisorpsi N2 menunjukkan isoterm tipe IV; CTAB hampir tidak mengubah luas permukaan BET (95,1 dan 98,3 m²/g), tetapi meningkatkan volume pori total sebesar 47% dan diameter pori rata-rata dari 6,4 menjadi 9,1 nm. Spektrum UV-Vis menunjukkan perkiraan celah pita yang sebanding (≈2,9–3,0 eV) dan hamburan cahaya tampak yang lebih kuat pada TiO2–CTAB. Pada TiO2 tanpa CTAB, efisiensi meningkat seiring waktu perendaman hingga 1,25% pada 6 jam. Pada waktu perendaman yang sama, fotoanoda TiO2–CTAB mencapai efisiensi 1,83% (Jsc = 6,50 mA/cm², Voc = 0,52 V, FF = 0,54), atau 46% lebih tinggi daripada TiO2 tanpa CTAB. Peningkatan ini didominasi oleh Jsc dan dikaitkan dengan pori yang lebih besar dan lebih mudah diakses, bukan dengan luas permukaan yang lebih besar, sedangkan FF yang sedikit lebih rendah mengindikasikan resistansi transpor elektron yang lebih tinggi pada film yang lebih porus dan diproses pada suhu rendah. Hasil ini menunjukkan bahwa rekayasa struktur pori fotoanoda berpotensi meningkatkan kinerja DSSC berbasis pewarna alami.
INTEGRASI ENERGI TERBARUKAN PADA SMART MICROGRID: OPTIMASI, FLEKSIBILITAS, RESILIENSI, DAN KECERDASAN BUATAN Yunita Djamalu; Ervan Hasan Harun; Aswin; Fuad Pontoiyo
Journal Of Renewable Energy Engineering Vol. 4 No. 2 (2026): Journal Of Renewable Energy Engineering (Oktober)
Publisher : Program Vokasi-Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56190/jree.v4i2.112

Abstract

ABSTRACT High renewable energy penetration is transforming smart microgrids from local generation systems into cyber-physical energy platforms that must coordinate planning, storage, flexible demand, electric vehicles, multi-energy coupling, market interactions, resilience, and intelligent control. This review synthesizes 56 Scopus-indexed records published in 2024-2026, all supplied in the reference extraction file, using a structured integrative review and thematic evidence synthesis. The literature was organized into six research fronts: joint sizing and energy-management co-design; flexibility portfolios based on batteries, hydrogen, pumped hydro, shared storage, and electric vehicles; transactive and multi-microgrid coordination; uncertainty-aware control and artificial intelligence; resilience and cybersecurity; and multi-energy sector coupling. The evidence shows a clear shift from isolated techno-economic sizing toward multi-objective, multi-time-scale, degradation-aware, and increasingly adaptive control. Recent studies also demonstrate that energy-management strategy can reshape the optimal physical design of a microgrid, while shared storage, peer-to-peer exchange, vehicle-to-grid, and hydrogen expand system flexibility beyond conventional batteries. However, the literature remains fragmented across planning and real-time control, physical and cyber resilience, technical optimization and market fairness, as well as simulation and field validation. The most defensible research gap is therefore not the absence of optimization algorithms, but insufficient end-to-end integration among co-design, uncertainty management, user behavior, lifecycle impacts, cybersecurity, and deployment constraints. A next-generation smart-microgrid framework is proposed to connect physical assets, sensing, forecasting, intelligent energy management, flexibility markets, multi-criteria objectives, and implementation feedback. Three linked priorities emerge: end-to-end multi-horizon co-design with degradation-aware flexibility, safe and explainable AI validated through HIL, field, and multi-site testing, and integrated physical-cyber resilience; market fairness and lifecycle governance are treated as cross-cutting constraints. ABSTRAK Penetrasi energi terbarukan yang semakin tinggi mengubah smart microgrid dari sistem pembangkitan lokal menjadi platform energi siber-fisik yang harus mengoordinasikan perencanaan, penyimpanan, beban fleksibel, kendaraan listrik, kopling multi-energi, interaksi pasar, resiliensi, dan kendali cerdas. Artikel ini mensintesis 56 rekaman terindeks Scopus periode 2024-2026 yang seluruhnya berasal dari file ekstraksi referensi yang disediakan, menggunakan tinjauan integratif terstruktur dan sintesis bukti tematik. Literatur dikelompokkan ke dalam enam frontier: co-design antara sizing dan energy management; portofolio fleksibilitas berbasis baterai, hidrogen, pumped hydro, shared storage, dan kendaraan listrik; koordinasi transaktif dan multi-microgrid; kendali sadar ketidakpastian dan kecerdasan buatan; resiliensi dan keamanan siber; serta kopling multi-energi. Bukti menunjukkan pergeseran dari sizing tekno-ekonomi yang terpisah menuju optimasi multi-objektif, multi-skala waktu, sadar degradasi, dan semakin adaptif. Studi terbaru juga menunjukkan bahwa strategi energy management dapat mengubah desain fisik optimal microgrid, sementara shared storage, peer-to-peer exchange, vehicle-to-grid, dan hidrogen memperluas fleksibilitas melampaui baterai konvensional. Meskipun demikian, literatur masih terfragmentasi antara perencanaan dan kendali real-time, resiliensi fisik dan siber, optimasi teknis dan fairness pasar, serta simulasi dan validasi lapangan. Gap utama bukan kekurangan algoritma optimasi, melainkan belum kuatnya integrasi end-to-end antara co-design, pengelolaan ketidakpastian, perilaku pengguna, dampak siklus hidup, cybersecurity, dan kendala implementasi. Review ini mengusulkan kerangka smart microgrid generasi berikutnya dan memprioritaskan tiga agenda yang saling terkait: co-design multi-horizon dengan valuasi fleksibilitas sadar degradasi, safe dan explainable AI yang divalidasi melalui HIL, lapangan, dan multi-lokasi, serta integrasi physical-cyber resilience; fairness pasar dan tata kelola siklus hidup diperlakukan sebagai constraint lintas tema.
Co-Authors Abdul Haris PanaI Ahmad Faqih Ahmad Faqih Ahmad Faqih Ardiyanto Saleh Modjo Aswin Burhan Liputo Dewi Wahyuni K. Baderan Ervan Hasan Harun Farid Gabriel Stella Sinay Hasim Hasim Hasim Hasim Hasim, H Iswan Dunggio Jamal Darusalam Giu Jumiati Ilham La Alio La Alio Lanto Mohamad Kamil Amali Mahludin H. Baruwadi Marini Susanti Hamidun Moh. Anggriawan Arif Moh. Hidayat Koniyo Mohammad Lanto Kamil Amali Muh. Arfah Syam Mukhtar, Sigit Adi Nur Oktavin Idris Ramli Utina Rosbin Pakaya Sarinah Pakpahan Sukirman Rahim Syam, Muh Arfah Syam, Muh. Arfah Yunita Djamalu