Fabrikasi Dan Uji Performansi Dyesensitized Solar Cells (Dssc) Berbasis Zno (Oksida Seng) Nanoflower Dengan Variasi Derajat Keasaman Dan Hmta

Iqbal, Muhammad (2014) Fabrikasi Dan Uji Performansi Dyesensitized Solar Cells (Dssc) Berbasis Zno (Oksida Seng) Nanoflower Dengan Variasi Derajat Keasaman Dan Hmta. Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.

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Abstract

ZnO nanoflower telah disintesis dengan menggunakan metode ko-presipitasi pada suhu 80°C untuk aplikasi Dye Sensitized Solar Cells (DSSC). Nanostruktur ZnO berhasil ditumbuhkan dengan variasi nilai derajat keasaman (pH) dari Zinc nitrate tetrahydrate [Zn(NO3)2.4H2O], Hexamethylenetetramine (HMTA) dan Potassium hydroxide (KOH). Hasil eksperimen mengindikasikan dengan penambahan nilai pH dari 6 sampai 12, morfologi ZnO berkembang dari partikel agregat, nanoflakes, nano prisma, dan pada akhirnya membentuk struktur nanoflower. Berdasarkan persamaan Scherrer, ukuran partikel dari puncak (100), (002), (101) dan (112) memiliki variasi ukuran dari 40 nm sampai 69 nm. Pada proses anil, ukuran partikel meningkat hingga 1,5 hingga 2 kali lipat dibandingkan saat sintesis. HMTA diketahui sebagai stabilizer dan reduktor yang efektif untuk memproduksi ZnO yang bervariasi terhadap panjang dan penampang melintang. Preparasi pasta pada penelitian ini dilakukan dengan variasi suhu dan waktu anil yaitu 200°C selama 30 menit dan suhu 300°C selama 60 menit. Hasil eksperimen menunjukkan efisiensi terbaik didapat dengan menggunakan suhu anil 200°C selama 30 menit dengan efisiensi 0,11 %, IPCE= 0,008611 %, FF= 0,25 %, Voc= 382 mV, Jsc= 0,11 mA/cm2 =================================================================================================== ZnO nanoflowers were synthesized by co-precipitation method at low temperature (80˚ C) for dye-sensitized solar cell applications. ZnO nanostructures were grown at various pH values from Zinc nitrate tetrahydrate [Zn(NO3)2.4H2O], HMTA (Hexamethylenetetramine) and Potassium Hydroxide (KOH). The results indicate that by increasing pH from 6 to 12, the ZnO morphology evolves from aggregrated particles, prism-like and eventually flower-like structures. According the Scherrer equation the particle size of (100), (002), and (101) peaks tends to drop as the pH increased. HMTA is known as an effective reductant to produce hexagonal ZnO rods of various lengths and cross-sections. However, the effect of various ammount of HMTA on the crystallite size in this research is somewhat complex, i.e. no particular trend was observed. The only clear information was obtained through SEM investigation which indicates that for low HMTA led to smaller petal and further addition caused the petal became wider ad eventually led the pronounced formation of the centered cone. Paste preparation which employs annealing at 200˚ C or 300˚ C for up to 1 hour leads to further growth of the obtained crystal. The experimental result show that the best efficiency was obtained for temperatur annealing of 200˚ C for 30 minutes i.e 0,11 % with IPCE= 0,008611 %, FF= 0,25 %, Voc= 382 mV, Jsc= 0,11 mA/cm2.

Item Type: Thesis (Undergraduate)
Additional Information: RSF 621.312 44 Iqb f
Uncontrolled Keywords: ZnO, Nanoflower, DSSC, kopresipitasi, pH, HMTA
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2960 Dye-sensitized solar cells. Solar batteries. Solar cells
Divisions: Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: EKO BUDI RAHARJO
Date Deposited: 07 Jan 2021 02:54
Last Modified: 07 Jan 2021 02:54
URI: https://repository.its.ac.id/id/eprint/82372

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