Judul: Keragaan Perdagangan Rotan dan Produk Rotan Indonesia di Pasar Domestik dan Internasional : Suatu Analisis Simulasi Kebijakan
Abstrak: Penelitian ini betujuan untuk mengetahui kinerja perdagangan rotan dan produk rotan Indonesia di pasar domestik dan internasional. Analisis pemecahan masalah dengan pendekatan sistem berupa model persamaan simultan yang mengintegrasikan komponen bahan baku, bahan setengah jadi, dan produk jadi di pasar domestik dan internasional serta hubungannya dengan pemberlakuan beberapa kebijakan pemerintah yang berkaitan dengan tataniaga rotan.
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Judul: Kajian Potensi Ekspor Rotan Indonesia
Abstrak: Dalam perdagangan ekspor, rotan merupakan komoditi yang menghasilkan devisa yang cukup besar bagi Indonesia setelah kayu lapis clan beberapa komoditi ekspor lainnya. Dalam potensi produksi, Indonesia merupakan produsen bahan baku rotan terbesar di dunia. Namun devisa yang dihasilkan dari ekspor produk rotan masih lebih rendah jika dibandingkan dengan negara lain. Dalam perdagangan dunia, upaya peningkatan daya saing dan perbaikan strategi pemasaran ekspor rotan sekarang ini menjadi lebih penting lagi karena persaingan dalam pasar rotan dunia semakin ketat, dan timbulnya kecenderungan-kecenderungan baru dalam perdagangan komoditi internasional. Sebagai langkah awal dalam pemilihan dan penetapan strategi pengembangan maka perlu dilakukan analisis potensi sumber daya, peluang pasar dan permasalahan yang sedang maupun yang akan dihadapi.
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Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell