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All Journal Jurnal Periodic Jurusan Kimia UNP Jurnal Riset Kimia Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan Sainstek : Jurnal Sains dan Teknologi REACTOR : Journal of Research On Chemistry And Engineering Journal of Natural Sciences Journal of Educational Sciences YASIN: Jurnal Pendidikan dan Sosial Budaya MASALIQ: Jurnal Pendidikan dan Sains Chimica Didactica Acta : Journal of Chemistry and Chemistry Education Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Molekul: Jurnal Ilmiah Kimia IJIS Edu : Indonesian Journal of Integrated Science Education
Hardeli Hardeli
Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Padang, Jl. Prof. Dr.Hamka, Padang
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Environmental Science Library & Information Science Materials Science & Nanotechnology Social Sciences Other

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Optimization of P3HT:PCBM Bulk Heterojunction Polymer Solar Cells: Effects of Annealing Temperature and Active Layer Composition Hardeli, Hardeli; Sanjaya, Hary; Harahap, Riri Indah Nitami; Permatasari, Putri
Jurnal Riset Kimia Vol. 16 No. 2 (2025): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v16i2.817

Abstract

P3HT:PCBM-based polymer solar cells have demonstrated potential as an affordable substitute for conventional silicon-based photovoltaics. The performance of P3HT:PCBM bulk heterojunction solar cells is examined in this work in relation to the annealing temperature and the composition of the active layer. The morphology of the active layer was characterized using SEM, while the electrical properties were measured using current-voltage (I-V) characterization. Our findings show that 150°C is the ideal annealing temperature, resulting in the maximum power conversion efficiency (PCE) of 2.58%. SEM analysis revealed that this temperature produces the most homogeneous surface morphology. Additionally, a P3HT:PCBM ratio of 3:1 resulted in the best device performance, with a PCE of 4.36%. Short-circuit current and open-circuit voltage increase when the blend's P3HT level increases. These results offer important information for optimizing the production of P3HT:PCBM-based polymer solar cells, which could lead to increased organic photovoltaic device efficiency and possible commercial outcomes.
Optimization of Tannic Acid Polymerization to Improve the Efficiency of Dye-Sensitized Solar Cells: Effect of Temperature and Monomer Concentration Agustini, Dwi; Hardeli, Hardeli; Oktavia, Budhi; Permatasari, Putri
Jurnal Riset Kimia Vol. 16 No. 2 (2025): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v16i2.823

Abstract

This study investigates the effects of temperature and monomer concentration on tannic acid polymerization to enhance dye-sensitized solar cell (DSSC) efficiency. Tannic acid was polymerized using Trimethylolpropane Triglycidyl Ether (TMPGDE) as a crosslinker, with monomer concentrations of 2, 2.5, and 3 grams and temperatures ranging from 30°C to 110°C. UV-Vis analysis revealed a bathochromic shift in poly-tannic acid, indicating increased light absorption in the 200-800 nm range. FTIR confirmed the formation of new ether groups, signifying successful polymerization. The highest DSSC efficiency (8.984%) was achieved with 2.5 grams of monomer at 50°C, significantly outperforming unpolymerized tannic acid (1.35%). The optimal poly-tannic acid has an average molecular weight of 32,610.1568 and a polymerization degree of 19.182. This research demonstrates the potential of tannic acid polymerization for improving DSSC performance, paving the way for more efficient and cost-effective organic solar cells.
Validity of E-Module Based on Problem Based Learning Integrated Demonstration Video and Science Literacy Aulia, Annisa; Hardeli, Hardeli
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 4, No 1 (2022): January 2022
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29300/ijisedu.v4i1.6497

Abstract

The time of mechanical insurgency 4.0 is a period of digitalization in different areas particularly within the field of instruction so it takes educating fabric that can increment understudy movement in learning. This type of research is educational design research using the Plomp model. This model consists of three steps: (1) preliminary research, (2) prototyping, and (3) assessment phase. The research instrument used observation sheets, questionnaires, and learning outcomes tests. The e-module was validated by six construct experts and three content experts. This inquires about points to create an e-module of electrolyte and nonelectrolyte solutions based on problem-based learning integrated demonstration videos and scientific literacy and decide the level of validity of created e-module. This sort of investigation is instructive plan inquire about utilizing the plomp model. The appraisal rebellious utilized were perceptions sheets, surveys, and learning results tests. The e-module was approved by five validators, to be specific the build validator and the substance validator. The comes about of the validity of the e-module develop gotten Aiken’s V normal esteem of 0.85 with a substantial category, and the validity of the e-module substance gotten a normal CVI esteem of 1 with a substantial category. Based on the results of the study, it was concluded that the problem-based learning e-module of electrolyte and nonelectrolyte solutions integrated with demonstration videos and scientific literacy developed was valid.
Peningkatan Efisiensi Poli Tanin Sebagai Dye Pada Dye Sensitized Solar Cell Menggunakan Crosslinker Glutaraldehyde Subriadi, Hanifah Putri Indah; Hardeli, Hardeli
REACTOR: Journal of Research on Chemistry and Engineering Vol. 4 No. 1 (2023)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/

Abstract

Dye Sensitized Solar Cell (DSSC) is the latest generation of solar cells with dyes as absorbers of photons from sunlight. At this time, the DSSC efficiency obtained is still relatively low so that research on DSSC is still being developed to produce DSSC with higher efficiency. One of the methods used to increase the efficiency of DSSC is polymerization of dyes. Polymerization of dyes aims to increase conjugated double bonds. The more conjugated double bonds, the more photons will be absorbed so that more electrons will flow. In this study, tannins were used as dyes. In the tannin polymerization process, crosslinking agents are used to bind tannin monomers with other tannin monomers. the variable in this study was the volume of the glutaraldehyde crosslinking agent (1.5 mL, 2.5 mL, 3 mL). The results of this study obtained the highest DSSC efficiency of 12.20% at a volume of 2.5 mL of crosslinking agent.
Co-Authors Agdisti, Nurul Fadilah Angreni, Siska Anna Maulina Asrizal Aulia, Annisa Bahrizal Bahrizal Budhi Oktavia Darmanella Dian Eka Wati Desy Kurniawati Dwi Agustini, Dwi Dwi Finna Syolendra Dwi Putri, Vika Trisna Edi Nasra Elfiza, Rizma Ernica, Santri Yuli Fisyabilillah, Dea Fitri, Bali Yana Harahap, Riri Indah Nitami Hary Sanjaya Hijri, Fadhillah Ideal, Flami Luthfianisa Indang Dewata Jayawarsa, A.A. Ketut Khairanisa, Ayudia Lasmana, Oria Lufri Lufri Luli, Rahmaneta Mohtar, Lilia Ellany Muhammad Farhan Nabilah, Hafizah Nizar, Umar Kalmar Nofriyanti, Desi Novita, Indri Panca Pernadi, Niza Lian Putri Permatasari, Putri Putri, Tiara Dwi Putri, Yollanda Prissila Rahadian Zainul Rahmi, Fathaniah Raviqa Ratih Komala Dewi Retno Damayanti Risty, Chika Mei Rizki, Suci Yulia Sabrina, Joya Sari*, Rona Taula Sherly Kasuma Warda Ningsih Sidiq, Aqil Marsya Subriadi, Hanifah Putri Indah Susanti, Melly Yunita, Lasmi