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Ngaderman, Hubertus
Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau
Agriculture, Biological Sciences & Forestry Chemistry Nursing Physics

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PEMODELAN SPEKTRUM SERAP DAN PANCAR ROTASI MOLEKUL UNTUK MENENTUKAN MOMEN INERSIA DAN MOMENTUM SUDUT ORBITAL S, Ego Srivajawaty; Ngaderman, Hubertus
Sistem Informasi Vol 6 No 02 (2016): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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[Theory, computation and modeling] The purposes of this research are modeling rotation of the molecule, emiting or absorption energy. The parameters which involved for the rotation spectrum are molecular mass, inertia moment, quantum numbers and angular momentum orbital. Made a pitch for a molecular spectrum rotation and inertia moment will be used methods from concept classical mechanics. Quantum mechanical used for determining angular momentum orbital. The spectral energy was counted for a molecular rotation and i.e and . Specific electromagnetics radiation for the energy absorption spectrum and emiting diatomic molecular at the moment that molecular vibrating were in the region spectrum infrared, whereas if the molecular rotated then its on the far infrared and microwave region. Transition which emited measured up by selection rules that only commit for the quantum numbers change as many as one unit, where identics with as the quantum number for one atomic hidrogen. was a quantum number take the values .Transition which emited doesn’t have all the same energy, but rather form a series energy which descend (or a series which go up wave length).
FABRIKASI SEL SURYA DENGAN MENGGUNAKAN BUAH SENDUDUK (MELASTOMA MALABATHRICUM) SEBAGAI SENSITIZER DAN PEMBUATAN NANOMATERIAL TIO2 MENGGUNAKAN TEKNIK SOL-GEL Ngaderman, Hubertus; S, Ego Srivajawaty; Fitri, Yulia
Sistem Informasi Vol 8 No 01 (2017): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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[Computation and modeling] The current solar cell technology is a technology developed by a process that is cheaper and easier in manufacturing. The solar cells sensitized by a dye below abbreviated writing that the DSSC is often also called Grätzel cells or whether the writing in Indonesian to be Sel Surya Berbasis Pewarna Tersensitisasi (SSPT). DSSC is a potential candidate in as a third generation of solar cells (coming soon) because it does not require a material with a high degree of purity so that a low-cost production process. Dye used as a sensitizer can be either synthetic or natural. Metal-based organic dye complex ruthenium using synthetic (it is expensive), but it contains heavy metals that harm the environment. To reduce the cost of DSSC develops organic based on material sensitizer. DSSC using the same principles for the process of photosynthesis that behave as a chlorophyll dye that absorbs light and produces carrier.The effectiveness of DSSC is no doubt that reaching more than 10% but with using this expensive type which is ruthenium complex metal-based organic. It is necessary to study massive research, a material awareness survey that has good performance, environmental costs. In this study will be carried out using DSSC senduduk fruit dye (Melastoma malabathricum) manufacturing and oxide semiconductors are nano materials (nanocrystals) TiO2 anatase gradually the solvotermal techniques.
PEMODELAN LEVEL ENERGI DISKRET PADA SEL SURYA KUANTUM DOT DAN WELL BERBASIS MATERIAL NANOSTRUKTUR Ngaderman, Hubertus; Srivajawaty, Ego
Sistem Informasi Vol 7 No 02 (2017): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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The aim of this research is to finding out modeling nanostructure solar cell SC with count in electron energy level on the conduction band. Divais photovoltaic nano i.e quantum dot QD and quantum well QW performing wide range transition of electron which can be controlled by the distribution range area suitably of the size dimension QD. QD gives ability absorbance of the ligth where created electron hole coupling which located in the dot. Transition electron in the QD be significant exceed thermal energy and cannot inducted by the fonon thermally while transition hole be simply inducted by the phonon acoustik thermal.Method of this research are concept and computation for accounting energy level. The concept which be used is DEK. The thickness well 𝐿𝑤 is small enough (10𝑛𝑚 or less), the set of level energy discret will be in the well and have hinges at the effective mass and the well thickness i.e 𝐸𝑛 rising with reduction 𝑚∗ or 𝐿𝑤. Maximum energy 𝐸1 = 3,77 × 104𝑒𝑉 at the thickness layer 𝐿𝑤 = 0,1𝑛𝑚. Maximum energy 𝐸2 = 1,51 × 105𝑒𝑉 at the 𝐿𝑤 = 0,1𝑛𝑚. ∆𝐸 is difference magnitude energy in the starting point 0,1𝑛𝑚 i.e 1,13 × 105𝑒𝑉 and in the last thickness QW i.e 10𝑛𝑚 is 1,13 × 101𝑒𝑉. Therefore transition electron in the QW be significantly exceed thermal energy and cannot inducted by the phonon thermal.
Co-Authors S, Ego Srivajawaty Srivajawaty, Ego Yulia Fitri