MOHAMMAD, ROHMAD W. and FARIS, SALMAN (2015) PREPARASI LAPISAN TIPIS ZnO DENGAN METODE ELEKTRODEPOSISI UNTUK APLIKASI DYE-SENSITIZED SOLAR CELL (DSSC). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini bertujuan untuk mempelajari dan
mengevaluasi pengaruh dari potensial yang diaplikasikan saat
elektrodeposisi terhadap morfologi dan karakteristik lapisan ZnO
yang terbentuk, serta mempelajari pengaruh pewarnaan dengan
antosianin dari ekstrak kulit terong terhadap sifat photovoltaic.
Proses elektrodeposisi dilakukan dengan 3 elektroda yaitu,
elektroda kerja berupa Cu dan ITO Glass, elektroda lawan berupa
platina dan elektroda pembanding berupa Ag/AgCl. Media
elektrolit yang digunakan berupa larutan campuran 5 mM ZnCl2
dan 0,1 M KCl dalam air demin, dengan volume total 600 ml.
Larutan diinjeksi dengan oksigen hingga mencapai DO 16,5
mg/L, selanjutnya dilakukan elektrodeposisi selama 30 menit.
Elektrodeposisi dilakukan pada berbagai potensial yaitu -0,5V;
-0,75V; -1V; -1,25V dan -1,5V vs Ag/AgCl. Kemudian nilai
konditivitas dari elektroda kerja diamati secara Chrono
Amperometry dengan menggunakan Autolab 302N, Metrohm.
Selanjutnya dianalisa reaksi yang terjadi pada elektrolit dengan
Cyclic Voltemmetry. Lalu untuk hasil lapisan ZnO yang telah
terbentuk diamati dengan Scanning Electron Microscopy (SEM).
Besar hambatan listrik dengan metode uji resistivity 4 probe.
Hasil penelitian menunjukkan perbedaan potensial saat
elektrodeposisi memberikan pengaruh terhadap proses pelapisan
dan morfologi dari ZnO. Pada potensial rendah, proses pelapisan
akan berlangsung lambat menghasilkan ZnO yang porous dan
merata. Semakin tinggi potesial yang diaplikasikan maka proses
pelapisan akan semakin cepat dan ZnO yang terbentuk akan
semakin tebal. Hasil lapisan yang memiliki nilai resistansi terkecil
adalah ZnO pada potensial -1,5V vs Ag/AgCl.
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The purposes of this research are to study and to evaluate
the effect of applied potential of electrodeposition to morphology
and characteristic of ZnO layer formed, also effect of anthocyanin
dye-coloring from extract of purple eggplant peels to photovoltaic
characteristic. Electrodeposition carried out with 3 electrodes
which, working electrode was ITO Glass, Counter electrode was
platinum, and reference electrode was Ag/AgCl. Electrolyte
media containing 5 mM ZnCl2 and 0,1 M KCl in demineralized
water, with total volume 600 ml. Electrolyte injected with oxygen
until dissolved oxygen value reach 16,5 mg/L, electrodeposition
was conducted for 30 minutes. Electrodeposition carried out in
several potentials, -0,5V; -0,75V; -1V; -1,25V and -1,5V vs
Ag/AgCl. The conductivity of working electrode can be analyzed
with chronoamperometry method with Autolab 302N, Metrohm.
The reaction of electrolyte can be analyzed with Cyclic
Voltammetry. Morphology of ZnO layer formed was observed
with Scanning Electron Microscopy (SEM). The amount of
electrical resistance ware analyzed with 4 probe resistivity
method. The result shows that the applied potential of electrode
have an effect on coating process and morphology of ZnO layer
formed. On low potential, coating process was slow which
formed porous and homogeny ZnO layer. More higher potential
applied, the ZnO coating process become more faster and the layer become thicker. The layer which have lowest resistance
value was ZnO formed on potential -1,5V vs Ag/AgCl.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSK 661.808 Moh p |
| Uncontrolled Keywords: | Elektrodeposisi, lapisan ZnO, Dissolved Oxygen, ITO Glass |
| Subjects: | T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial. |
| Divisions: | Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis |
| Depositing User: | Anis Wulandari |
| Date Deposited: | 09 Jan 2017 02:55 |
| Last Modified: | 24 Aug 2018 03:41 |
| URI: | http://repository.its.ac.id/id/eprint/1389 |
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