A5010162634- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Nanowire Synthesis and Applications
- Geological and Geophysical Studies
- Experimental Learning in Engineering
- Polymer Nanocomposite Synthesis and Irradiation
- Experimental and Theoretical Physics Studies
- Engineering and Technology Innovations
- Innovative Teaching Methods
- Quantum Dots Synthesis And Properties
- Heavy Metal Pollution Remediation
- Natural Products and Applications
- Material Selection and Properties
- Multimedia Learning Systems
- Geophysical and Geoelectrical Methods
- IoT-based Control Systems
- Radiation Shielding Materials Analysis
- Computer Science and Engineering
- Organic Light-Emitting Diodes Research
- Urban Transport Systems Analysis
- Molecular Junctions and Nanostructures
- Perovskite Materials and Applications
- Nuclear materials and radiation effects
- Sensor Technology and Measurement Systems
- Educational Methods and Technology
Tadulako University
2014-2023
University of Newcastle Australia
2011-2018
Tanjungpura University
2018
Monte Carlo (MC) simulations have been used to fully model organic solar cells. The quantum efficiency and short-circuit current of these virtual devices are in excellent agreement with experimental measurements. Simulations show that, contrary expectation, indium tin oxide/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate)/poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methylester (PCBM)/aluminium lack effective charge blocking layers at the electrode interfaces. X-ray...
Initial attempts to prepare conducting polymer nanoparticles with ethanol as a solvent are described. Using poly (3‐hexylthiophene) (P3HT)/1‐(methoxycarbonylpropyl)‐1‐phenyl‐[6,6]C61 (PCBM) blends we demonstrate surfactant‐free synthesis and characterization of in dispersion. The spectral features the were investigated by UV‐vis spectrophotometry show that P3HT has an absorption maximum at ∼520 nm, while peak PCBM lies ∼330 nm. Corresponding fluorescence spectra emission 630 nm shoulder...
Water-based nanoparticulate (NP) and bulk heterojunction (BHJ) organic photovoltaic (OPV) devices based on blends of poly(9,9-dioctylfluorene-co-N,N-bis(4-butylphenyl)-N,Ndiphenyl-1,4-phenylenediamine) (PFB) poly(9,9-dioctylfluorene-co-benzothiadiazole (F8BT) have been fabricated with aluminium calcium/aluminium cathodes. The NP exhibit power conversion efficiencies (PCEs) that are double the corresponding BHJ device. Moreover, addition calcium into cathode structure results in a dramatic...
Abstract The effect of active layer thickness on the performance nanoparticulate organic photovoltaic (NP-OPV) devices based Poly (3-hexylthiophene) (P3HT) as electron donor and 6,6-phenyl C 61 butyric acid methyl ester (PC BM) acceptor is reported. Power conversion efficiency (PCE) observed to peak for around 100 nm, which very similar that obtained bulk heterojunction devices. Increasing beyond nm decreases short circuit current, lowering PCE. Decrease in current hence device NP-OPV due...
Bulk heterojunction Organic photovoltaic (OPV) devices are gaining a lot of interest due to their potential for ease processing and lower manufacturing cost sustainable energy generation. In consequence, the number studies into properties characteristics organic solar cell has been increased improving power conversion. A further advancement over past decade shown that improved efficiency could be obtained by mixed poly(3 - hexylthiophene) (P3HT) [1] – phenyl C61-butyric acid methyl ester...
The impact of a calcium interface layer in combination with thermal annealing treatment on the performance poly(3-hexylthiophene) (P3HT):[6,6]-phenyl-C61-buteric acid methylester (PCBM) nanoparticle photovoltaic devices is investigated. Annealing found to disrupt microstructure active leading reduction fill factor. However, X-ray photoelectron spectroscopy measurements show that causes PCBM preferentially migrate cathode upon annealing, resulting better charge extraction from moiety, an...
Pada penelitian ini telah dibuat suatu intrumen yang secara otomatis dapat mengukur kecepatan dan percepatan benda menggelinding pada bidang miring. Tahapan dimulai dari pembuatan sistem mekanik, rangkaian sensor optik, LCD-Arduino Uno. Selanjutnya dilakukan program uji utama. Tahap akhir adalah pengujian alat pengambilan data. Alat beroperasi dengan baik namun belum memberikan hasil diharapkan sesuai perhitungan teori yakni nilai kesalahan relatif sebesar 21% - 50% terhadap teoritis. Di...
Equivalent circuit models are becoming increasingly important for the development of large scale demonstrations organic photovoltaics. The ‘S’ shaped profile is a common feature OPV current-voltage (I-V) curves and consequently equivalent that replicate these features urgently required. In this paper we prepare case study based on ITO/PEDOT-PSS/P3HT:PCBM/Al devices whose I-V profiles transition from shape to ‘J’ with increasing aluminium thickness prepared using low evaporation rates. We...
Abstract The experiment tool of converting angular velocity into linear has been built to support the physics education in Physics Department Tadulako University. In this project, experimental designed, manufactured, and tested convert value based on Arduino ATMega 2560. stages research begin with design manufacture: mechanical system, optical sensor circuit, stepper motor circuit LCD keypad controlled by next step is building controlling program as brain instrument. This working properly....
The Palu City area is one of the areas that are vulnerable to impact earthquake, seen from seismicity and Palu-Koro fault. Therefore, it necessary analyze seismic vulnerability index thickness sediment layer in city area. This study uses microtremor method with HVSR (Horizontal Vertical Spectrum Ratio) analysis. produces natural frequency parameters (fo) amplification (Ao) which presented form an H/V curve so this can estimate (Kg). then becomes input for ellipticity analysis get (h)....
Abstract The lack of a physical instrument for determining the initial speed experiment parabolic motion in Department Physics, Tadulako University, is one problem. In this research, we have been designed, implemented, and tested to show velocity value an Arduino-based address stages research began with design manufacture mechanical systems, electronic systems such as power supply circuits infrared detector circuits, motor stepper circuit, series servo motors, LCD keypad using Arduino ATmega...
ABSTRAK Pemurnian pasir kuarsa Desa Pendolo Kecamatan Pamona Selatan Kabupaten Poso telah dilakukan pada penelitian ini. Proses pemurnian bahan menggunakan metode kopresipitasi. Larutan silika dititrasi dengan HCl 2 M hingga pH 7 (netral). Hasil dikalsinasi suhu 900°C dan 1000°C selama 1 jam. Selanjutnya, sampel dikarakterisasi XRF XRD. Kandungan unsur Si (Silika) berdasarkan hasil analisis setelah pemurniaan yaitu 97.69%. Pencocokan XRD software Search Match memperlihatkan bahwa SiO...
Abstract This research aims to investigate the potential of quartz sand in Pasir Putih Village Pamona Selatan District, Poso Regency. The is conducted by using a method geoelectrical resistivity with Schlumberger configuration. Mapping process was done at 37 points measurement and calculated IP2WIN software. Each point connected 5 trajectories order map distribution sand. software 3D RockWork used calculate volume white area. results obtained are detected resistance value 1000 Ωm - 140,000...
Abstract The Effect of blending ratio between Poly (3-hexylthiophene) (P3HT) as donor electron and phenyl C61 butyric acid methyl ester (PCBM) on Nanoparticulate Organic Photovoltaic has been investigated. A series P3HT:PCBM nanoparticle dispersions with by mass 2:1, 1:1, 1:2 were prepared an active layer nanoparticulate organic photovoltaic devices. highest efficiency booth pre-annealed annealed devices is at 1:1. was driven the current density (J sc ) fill factor (FF) indicating that...
Abstract This report present a thorough discussion of the DOD inkjet printing technology, including technical skills and information about Dimatix printer employed for realisation devices. The use deposition conducting polymer PEDOT:PSS was successfully demonstrated top gate electrode organic thin film transistors. investigation offers significant contribution in order to efficient fabrication OTFTs.
Background and Objective: ZnS:Mn is a very potential semiconductor to be applied various optoelectronic devices, because it has good optical properties especially transmittance high band gap in the visible spectrum region.This study aimed analyze effect of percentage deposition rate Mn dopant on ZnS each sample making that useful for development science, field optics microelectronics.Materials Methods: A thin layer with thermal co-evaporation electron beam method been made.Results: Analysis...
Abstract Studies on the characterization of quartz rock have been carried out at three locations, namely shores Lake Poso, Poso River and location sand mines has done using XRF XRD methods. The results indicate that SiO2 mineral content obtained from Lake, Piver mining locations are 99.4%, 99.34% 99.30%, respectively. data showing Miller index value in all samples is [101] with a trigonal crystal structure (hexagonal axes).
Abstract It has been designed and made a sonometer device that uses microcontroller LM567 frequency sensor module. The sound from the strings is detected by module sensor. If detects string same as tuning fork frequency, will display word “Sesuai” on monitor screen (LCD) which means equal to frequency. Conversely, if of not fork, “T Sesuai” Compared conventional sonometer, this (the modified sonometer) produces more accurate values. In study, maximum relative error 0.30% while 10.86%.