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Journal : POSITRON

The Electrical Characteristic Analysis of Reduced Graphene Oxide in Pt-Free DSSC Using Single Diode Model and Electrochemical Impedance Spectroscopy Aprilia, Annisa; Yuliasari, Fitri; Siregar, R.E; Syakir, Norman; Bahtiar, Ayi; Safriani, Lusi; Hidayat, Sahrul; Hanipah, Iip; Fitrilawati, Fitrilawati
POSITRON Vol 12, No 2 (2022): Vol. 12 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v12i2.54272

Abstract

We studied the characteristic of reduced graphene oxide (rGO) as a counter electrode (CE) in Pt-free dye-sensitized solar cell (DSSC) using single diode model equation based on current density-voltage (J-V) measurement. The electrical characteristics of DSSC was investigated by electrochemical impedance spectroscopy (EIS) in order to knowing the catalytic properties of rGO as counter electrode. The rGO thin film as CE was deposited on fluorine-doped tin oxide (FTO) substrate and stacked with FTO/TiO2/ruthenium dye/mosalyte/rGO/FTO DSSC structure. The rGO film was obtained from GO (graphene oxide) film that was thermally reduced at 200°C for one hour under argon flow. The performance of DSSC with rGO as CE was characterized by current-voltage measurement and the interface between each layer was observed by Electrochemical Impedance Spectroscopy (EIS).   The device efficiency (η) of DSSC that used GO and rGO film as CE are 0.09% and 3.43%, respectively. DSSC parameters such as series resistance (RS) shunt resistance (RSH), and ideality factor (n) were obtained from J-V curve which analyzed using single diode model equation. All samples have a Rs value of 2 indicates that all devices have a good ohmic contact. The RSH of device using rGO-1mg/ml is increase (from 2850 to 3670 Ω.cm2) compared with GO indicate that thermal reduction is successes. The rGO film shows a comparable performance to Pt-conventional CE thus it is a good candidate as alternative of DSSC counter electrode.
Co-Authors Adelia Septyani Afifah Nurida Afifah Nurida, Afifah AMALIA ROHMAH FAJARIAH AMANDA, NUR APRILIA Annisa Aprilia Annisa Aprilia Annisa Aprilia ARIF BAGUS PRAKOSO Arsyad, Wa Ode Sukmawati Ayi Bahtiar Ayi Bahtiar Ayunita Chintia Ayunita Chintia Celline Ayunita Chintia, Ayunita Azizah, Euis Siti Nur BAYU PERMANA Choiry Ghina Afrilia CHOIRY GINA AFRILIA Cukup Mulyana Cukup Mulyana Cukup Mulyana Cukup Mulyana Davi Putri Hanavi Diba Grace Auliya Eda, Sukma Jan Euis Siti Nurazizah Euis Siti Nurazizah Euis Siti Nurazizah, Euis Evan Mulyana EVAN MULYANA EVAN MULYANA, EVAN F FITRILAWATI Faizal, Ferry FAJARIAH, AMALIA ROHMAH FAUZIYYAH, SABRINA GHAIDA Ferry Faizal Fitri Yuliasari FITRILAWATI F Fitrilawati Fitrilawati Fitrilawati Fitrilawati Fitrilawati Fitrilawati H Taniguchi H Taniguchi Hanipah, Iip HERI FERNANDO Iman Rahayu Inovasari Islami Liu Kin Men LUTFI NAUFAL RAMADHIKA Lutfi Naufal Ramadhika MALA SAPUTRI MUHAMMAD ARYA REVANSYAH MUHAMMAD RIZKY NURAWAN Nabila Asy Syifa Nabila Asy Syifa, Nabila Nabillah Fa'diyyah Zahra NADYA LARASATI Nadya Larasati K NADYA LARASATI K, NADYA Norman Syakir, Norman Nowo Riveli NUR APRILIA AMANDA Nurazizah, Euis Siti Nurfitriani Nurfitriani Permana, Bayu Permana, Diki PUTRI, AMARIS EVANIA RAHMADANI RAHMADANI RAHMAT HIDAYAT Rahmawati, Annisa Nur RAMADHIKA, LUTFI NAUFAL RESTI RAHAYU DWI AGUSTINI REVANSYAH, MUHAMMAD ARYA RISDIANA R Risdiana Risdiana Risdiana Risdiana RISDIANA RISDIANA, RISDIANA S Setianto S Setianto, S Sahrul Hidayat Saputri, Mala Sheila Sakkyananda SHEILA SAKKYANANDA Sheila Sakkyananda, Sheila Siregar, R.E Sri Suryaningsih TATI NURHAYATI THORIQ S RAHMAN Thoriq S. Rahman THORIQ S. RAHMAN, THORIQ Togar Saragi, Togar Tuti Susilawati Tuti Susilawati Tuti Susilawati Utami, Nabilah Putri Vira Fuji Arini WIBOWO, ZANETA HELGA LOVELY Winna Prasita Primawati Yukio Furukawa YULIASARI, FITRI ZANETA HELGA LOVELY WIBOWO