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Annisa Aprilia
Departemen Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Padjadjaran
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Journal : INDONESIAN JOURNAL OF APPLIED PHYSICS

 1 
Photocurrent Density Enhancement of DSSC with Existence of ZnO in TiO2 Based Photoanode Lusi Safriani; Nurfitriani Nurfitriani; Ayunita Chintia Celline; Annisa Aprilia; Yukio Furukawa
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 13, No 2 (2023): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v13i2.74821

Abstract

One of the important components of a dye-sensitized solar cell (DSSC) is photoanode which plays a critical role serving as the center of conversion energy. Photoanode consists of transparent conducting substrate, a semiconductor layer, and dyes molecules as sensitizers. Titanium dioxide (TiO2) is widely used as a photoanode because it is a mesoporous and stable material despite its high recombination rate. To reduce the recombination rate and improve electron transport, TiO2 is combined with other materials such as ZnO to form TiO2/ZnO composites. ZnO is a good choice because it has higher electron mobility than TiO2 to inhibit recombination. The synthesis process of TiO2/ZnO composites was carried out using the sol-gel method with variations in the weight percentage of ZnO. The TiO2/ZnO composite was then applied as a photoanode in DSSC. The J-V measurement results shows that the DSSC with TiO2/ZnO 25wt% composite layer as the photoanode produced the highest efficiency of 0.86%. This increase in efficiency was due to an increase in the photo-current of photoanodes that have more ZnO content. The presence of ZnO leads to faster-moving electron transport, therefore reducing recombination and increasing efficiency.
Low Temperature Calcination of TiO2 and ZnO Particle Film and Evaluation of Their Photocatalytic Activity Inovasari Islami; Lutfi Naufal Ramadhika; Lusi Safriani; Ayi Bahtiar; Fitrilawati Fitrilawati; Nowo Riveli; Annisa Aprilia
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 13, No 2 (2023): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v13i2.76028

Abstract

In this study, TiO2, ZnO, and TiO2/ZnO films were prepared under low calcination temperature and characterized to observe their properties related to photocatalytic performance. The samples were prepared by mixing the gel phase of ZnO precursor, TiO2 anatase powder, triton-x 100, and acetylacetone to produce a paste form for the deposition process. The resulting paste was then deposited by screen printing onto a glass substrate and subjected to calcination at 250C to facilitate the ZnO crystallization and remove other additive materials. XRD analysis confirms that the formation of ZnO and TiO2 crystals was assisted, although their crystallinity was lower than corresponding particulate forms. The lower crystallinity seems to be related by additive materials remains. The surface morphology of each sample was observed by scanning electron microscopy (SEM) imaging, Brunauer–Emmett–Teller (BET), and contact angle examination. Interestingly, both TiO2 and ZnO layers tend to have a hydrophobic surface meanwhile TiO2/ZnO has a hydrophilic surface. BET analysis revealed that ZnO has the highest specific surface area due to a nanosized. FTIR spectra confirmed the presence of appropriate chemical bonds in the ZnO and TiO2 and other additive materials, such as alkyl groups. The photoluminescence (PL) spectrum shows a blue emission associated with intrinsic defects such as vacancies and interstitials of Zn and Ti in all samples. Differences in the photocatalytic performance of film and particulate form for each material were observed and analyzed. All samples' structures, morphology, and PL characteristics were then correlated to their photocatalyst behavior for methylene blue degradation.
Co-Authors AA Sudharmawan, AA Adelia Septyani Afifah Nurida Afifah Nurida, Afifah Agustin P. Mastiti Ahmad Hasa Fahrurozi Aidil Halim Lubis Ali Ikhwan AMALIA ROHMAH FAJARIAH AMANDA, NUR APRILIA Andi Juanna Anggara, Raka Aprilia Tripuspita ARIF BAGUS PRAKOSO Arsenius Felix Kusbintoro Arsyad, Wa Ode Sukmawati Askariyya, Javida Asmar Yulastri Asnawi, Melan Angriani Ayi Bahtiar Ayunita Chintia Ayunita Chintia Celline Ayunita Chintia, Ayunita Azizah, Euis Siti Nur Baiq Rindang Aprildahani Chairul Amriyah Choiry Ghina Afrilia CHOIRY GHINA AFRILIA CHOIRY GINA AFRILIA Citra Wulandari Cukup Mulyana Cukup Mulyana Cukup Mulyana Cukup Mulyana Damanik, Risda Meilisa Davi Putri Hanavi Dea Khairum DERI LASMANA Desiana N, Nadia Detya Mopalanda Sianipar Eda, Sukma Jan ELVI MAILANI Era Octafiona Euis Siti Nurazizah Faizal, Ferry FAJARIAH, AMALIA ROHMAH Fania Rahman Ferry Faizal Fitri Yuliasari Fitrilawati Fitrilawati Fransiska N.G. Purba GIYA PRANATA Gracia, Michaela Gusnita, Wiwik Hanipah, Iip HERI FERNANDO HERLAN RUDIYANTO Hutabarat, Michaela Gracia Indrayeni, Wiwik Inovasari Islami Irwan Yantu Khairum, Dea Kharismayanda, Mardhiyah Kusbiantoro, Arsenius Felix Liu Kin Men Lusi Safriani Lutfi Naufal Ramadhika LUTFI NAUFAL RAMADHIKA Mastiti, Agustin P. Michaela Gracia Hutabarat Mubarokah, Laelatul Muhamad Taufik Hidayat MUHAMMAD ARYA REVANSYAH MUHAMMAD RIZAL MUHAMMAD RIZKY NURAWAN Muhammad Yusup Nazri Al Ayyubi Ningrum, Indri Ayu Norman Syakir NORMAN SYAKIR Norman Syakir Norman Syakir, Norman Nowo Riveli Nowo Riveli NUR APRILIA AMANDA Nur Laely, Safhira Nurazizah, Euis Siti Nurfitriani Nurfitriani Nyoman Sridana Permana, Diki Putri, Onma Nikita R. N. Lamuda R.N. Lamuda Rahmat Hidayat RAHMAT HIDAYAT Rahmawati, Annisa Nur Raka Anggara RAMADHIKA, LUTFI NAUFAL Ratna Yulis Tyaningsih RESTI RAHAYU DWI AGUSTINI REVANSYAH, MUHAMMAD ARYA Rhesti Nurlina Suhanto RISDIANA RISDIANA, RISDIANA RIZKIA MUTIARA S Setianto, S Sahrul Hidayat Salsabila Mustaan Santy Nururly Serlu Ayu Cahyani Setianto Setianto SHEILA SAKKYANANDA Sheila Sakkyananda Sheila Sakkyananda, Sheila Siahaan, Helena Mora Sianipar, Detya Mopalanda Siregar, R.E Sitti Safiatus Riskijah Soleha Az Zahra Sri Suryaningsih Suhardi Suhariyanto Suhariyanto Syafiul Anam Syahrul Azmi Tangdililing, Reti Ranggina Thantawi, Tubagus Rifqy Togar Saragi, Togar Tuti Susilawati Tuti Susilawati Tuti Susilawati Utami Yuliani Utami, Nabilah Putri Victoria, Elinda Vini Vionadhia Indriyani Waode Sukmawati Arsyad Wijaya, Yulia Lestari Winna Prasita Primawati Wirdiyan, M. Alfi Witardi, Reynaldi Jodi YATI MARYATI Yudha Rahman Yukio Furukawa Yulia Lestari Wijaya Yuliani, Utami YULIASARI, FITRI