AISYAH NUR HIKMAH, . (2025) Analisis Karakteristik Arus-Tegangan Sel Surya Organik Berbasis DSSC Dengan Ekstrak Daun Cincau Dan Variasi Ketebalan TiO₂. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.
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Abstract
Kebutuhan energi yang terus meningkat dan dampak lingkungan dari penggunaan bahan bakar fosil mendorong pengembangan teknologi energi terbarukan yang ramah lingkungan. Salah satu inovasi yang potensial adalah *Dye Sensitized Solar Cell* (DSSC), yaitu sel surya generasi ketiga yang menggunakan *dye* alami sebagai *sensitizer* untuk mengubah energi cahaya menjadi listrik. Penelitian ini bertujuan untuk menganalisis pengaruh variasi ketebalan lapisan TiO₂ terhadap karakteristik arus-tegangan (I–V) pada DSSC berbasis dye alami dari ekstrak daun cincau (*Cyclea barbata*). Metode yang digunakan adalah eksperimen laboratorium dengan pendekatan kuantitatif. Lapisan TiO₂ dideposisikan pada substrat *Indium Tin Oxide* (ITO) menggunakan metode *doctor blade* dengan variasi satu, dua, dan tiga lapisan. *Dye* dari daun cincau diaplikasikan sebagai *sensitizer*, kemudian setiap DSSC diuji dengan dan tanpa larutan elektrolit di bawah intensitas cahaya tertentu. Hasil pengujian menunjukkan bahwa penambahan ketebalan TiO₂ dari satu menjadi dua lapis meningkatkan nilai arus *short-circuit* (Isc), tegangan *open-circuit* (Voc), daya maksimum (Pmax), dan efisiensi konversi energi. Efisiensi tertinggi sebesar 0,044% diperoleh pada DSSC dua lapis dengan elektrolit. Namun, penambahan menjadi tiga lapis menurunkan efisiensi akibat peningkatan hambatan internal. Tanpa elektrolit, kinerja seluruh sampel menurun signifikan. Kesimpulannya, ekstrak daun cincau dapat digunakan sebagai dye alami yang ramah lingkungan dan ekonomis. Variasi ketebalan TiO₂ terbukti memengaruhi performa DSSC secara signifikan. **** The growing energy demand and environmental concerns caused by fossil fuel usage have driven the development of renewable energy technologies. One promising innovation is the Dye Sensitized Solar Cell (DSSC), a third-generation solar cell that utilizes natural dyes as sensitizers to convert light energy into electricity. This study aims to analyze the effect of TiO₂ layer thickness variation on the current-voltage (I–V) characteristics of DSSC using natural dye extracted from Cyclea barbata (cincau leaves). The research was conducted through laboratory experiments with a quantitative approach. TiO₂ layers were deposited onto Indium Tin Oxide (ITO) substrates using the doctor blade method with variations of one, two, and three layers. The extracted dye was applied as a sensitizer, and each DSSC sample was tested under light exposure with and without the addition of an electrolyte solution. The results showed that increasing the TiO₂ thickness from one to two layers improved the short-circuit current (Isc), opencircuit voltage (Voc), maximum power (Pmax), and energy conversion efficiency. The highest efficiency of 0.044% was achieved in the two-layer sample with electrolyte. However, adding a third layer reduced efficiency due to higher internal resistance and increased electron recombination. Additionally, all samples showed significantly reduced performance in the absence of electrolyte. In conclusion, Cyclea barbata extract is a potential eco-friendly and cost-effective natural dye for DSSC. The variation in TiO₂ thickness significantly influences the overall performance, offering valuable insight for the development of sustainable solar cell technologies.
Item Type: | Thesis (Sarjana) |
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Additional Information: | 1) Dr. Hadi Nasbey, M.Si. 2) Syafrima Wahyu, M.Si. |
Subjects: | Sains > Fisika |
Divisions: | FMIPA > S1 Fisika |
Depositing User: | Aisyah Nur Hikmah . |
Date Deposited: | 19 Aug 2025 03:02 |
Last Modified: | 19 Aug 2025 03:02 |
URI: | http://repository.unj.ac.id/id/eprint/61581 |
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