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Journal : Makara Journal of Technology

Dye Sensitized Solar Cell with Conventionally Annealed and Post-Hydrothermally Treated Nanocrystalline Semiconductor Oxide TiO2 Derived from Sol-Gel Process Yuwono, Akhmad Herman; Munir, Badrul; Ferdiansyah, Alfian; Rahman, Arif; Handini, Wulandari
Makara Journal of Technology Vol. 14, No. 2
Publisher : UI Scholars Hub

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Abstract

Dye-sensitized solar cell (DSSC) is one of the very promising alternative renewable energy sources to anticipate the declination in the fossil fuel reserves in the next few decades and to make use of the abundance of intensive sunlight energy in tropical countries like Indonesia. In the present study, TiO2 nanoparticles of different nanocrystallinity was synthesized via sol−gel process with various water to inorganic precursor ratio (Rw) of 0.85, 2.00 and 3.50 upon sol preparation, followed with subsequent drying, conventional annealing and post-hydrothermal treatments. The resulting nanoparticles were integrated into the DSSC prototype and sensitized with an organic dye made of the extract of red onion. The basic performance of the fabricated DSSC has been examined and correlated to the crystallite size and band gap energy of TiO2 nanoparticles. It was found that post-hydrothermally treated TiO2 nanoparticles derived from sol of 2.00 Rw, with the most enhanced nanocrystalline size of 12.46 nm and the lowest band gap energy of 3.48 eV, showed the highest open circuit voltage (Voc) of 69.33 mV.
Effects of Deposition Parameters and Oxygen Addition on Properties of Sputtered Indium Tin Oxide Films Munir, Badrul; Wibowo, Rachmat Adhi; Ho, Kim Kyoo
Makara Journal of Technology Vol. 16, No. 2
Publisher : UI Scholars Hub

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Abstract

Indium tin oxide (ITO) films were sputtered on corning glass substrate. Oxygen admixture and sputtering deposition parameters were optimized to obtain the highest transparency as well as lowest resistivity. Structural, electrical and optical properties of the films were then examined. Increasing deposition rate and film thickness changed the crystallographic orientation from (222) to (400) and (440), as well as higher surface roughness. It was necessary to apply substrate heating during reposition to get films with better crystallinity. The lowest resistivity of 5.36 x 10-4 Ω•cm was obtained at 750 nm film thickness. The films’ resistivity was increased by addition of oxygen up to 2% in the argon sputtering gas. All films showed over 85% transmittance in the visible wavelength range, possible for applications in photovoltaic and display devices.
Co-Authors Abdiel Khaleil Akmal Abdillah, Andi Abdul Halim Anshor Abdul Jalil, Husni Abiyyu, Muhammad Dzaki Absor, Layin Abu Bakar, Ali Adelia, Ni Luh Triska Afif, Zamroni Agustin Hanapi Ahyandi, Syarif Syamsi Akhmad Herman Yuwono Akhmad Yuwono, Akhmad Al-Huda, Nafisah Ala Qoonita Najma Haq, Nabiila Alfian Ferdiansyah Alfiana, Arista Amal, Mohammad Ikhlasul Amrus Ernanda, Shelby Ansyah, A. Rusli Budi Ardiansyah, Rian Ardika, Jumelia - Arief Alamsyah Nasution, Arief Alamsyah Arif Rahman Asmiragani, Syaifullah Assidiki, Hasbi Ayu Irnanda, Miranthi Bambang Suharno Cahyani, Lutvia Dian Wulan Catur Ari Setianto, Catur Ari Chozin, Iin Noor Daeng, Bonaventura Handoko Darkim, Darmawan Dian Ekawati Didi Candradikusuma Dinda Iryawati Dwi, Pratiwi Suryanti Eko Arisetijono Elmira, Fara Qamara Fachri, Fachri Ferdiansyah, Firnando Fianti Fianti, Fianti Gamal Achyar Haekal, Teuku Ahmad Halida Yunita Handika, Ehwanul Harun Al Rasyid Heri, Sutanto Ho, Kim Kyoo Husni Mubarrak I Nyoman Mudana Ilyas, Muhammad Fadhlirobby Indriana Kartini Iskandar Iskandar Izzati, Arina Javier, R. Mohamad Johny Wahyuadi Soedarsono Kim Ho, Kim Kim, Kyoo Ho Laila, Fadilatul Limanto, Ericko Julian M. Bennani, Abdelkarim M. Rafid Marwal Mahendra, Mirza Maisuri T. Chalid, Maisuri T. Marwal, Muhammad Ilyas Mondiani, Yeni Quinta MUNIRA SUNGKAR, MUNIRA NURBAYANAH, SITI Nurdin, Alifiya Febryanto Zuhri Nurhayati Nurhayati Paundralingga, Obed Trinurcahyo Kinantyo Perdana, Maulana Zidan Pertiwi Febriana Chandrawati Prastiwi, Dian Eka Prayudi, Firman Pujianto, Togo Hadi Qudsiyah, Baytil Rachmat Wibowo, Rachmat Rakhmatiar, Rodhiyan Ratnasari, Rahmi Desi Razak Abdullah, Abdul Razak, Abd Rialdi, Andisa Fadhila Riandono, Dody Rini Riastuti, Rini Rizky Rosita, Rizky Sa'adah, Asyifatu Sabda Alam, Satria Shafiq, Tengku Ahmad Shahdevi Nandar Kurniawan, Shahdevi Nandar Sholihin, Muhammad Yudi Masduky Silalahi, Yoseph Valentino Siswanto . Soedarsono, Johny W. Sofyan, Norifon Sri Budhi Rianawati, Sri Budhi Suhaili Sufyan, Muhammad Suprianto, Wiwit Didik Suraiya Suraiya Tohadi Tohadi Tri Wahju Astuti, Tri Wahju Trisnawati, Ayu Vika Rizkia Wahyudi, Setia Wibowo, Rachmat Adhi Wicaksono, Himawan Widianto, Shilla Rizqi Widodo Mardi Santoso, Widodo Mardi Wulandari Handini Yeni Purnamasari, Yeni Yudha Pratesa Yuniar Alam, Yuniar Yunus, Saifullah Zikri, Awwaluz Zulhelmi, Anshar Zulkhairi Sofyan