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Hasil Pencarian

Ditemukan 3 dokumen yang sesuai dengan query
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Naima Amaliah Asmah Ramadani
Density functional theory (DFT) calculations to investigate the effects of substitution of ga with al on the band gap and the optical spectrum of Al (x) Ga (1 -z)N (x=0.125, 0.25) = Studi pengaruh subtitusi Ga dengan Al dalam sifat-sifat optis dan struktur elektronik Al (x) Ga (1 -z)N (x=0.125, 0.25) berbasis density functional theory (DFT)
" ABSTRACT
Semiconductors have long been the main materials used in the manufacture of charge based as well as photonic based electronic devices. GaN, owing to its wide band gap, is often used for light emitting diodes, and other optoelectronic applications. To adjust to the desired energy band gap, GaN is often combined with Al in form of Al x Ga 1 x N, which is expected to have a wider band gap than that of pure ... "
2017
S67531
UI - Skripsi Membership  Universitas Indonesia Library
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Altifani Rizky Hayyu
Study of band structure renormalization of tight binding model semiconductor by incorporating gw self energy = Studi teoretis renormalisasi struktur pita energi semikonduktor model tight-binding dengan memperhitungkan gw self-energy
" ABSTRACT
Current electronics technology still relies on semiconductors for several purposes. The special property that distinguishes a semiconductor from another material is band gap energy inside of which the Fermi energy is located. Most conventional semiconductors such as Ge, Si, or GaAs may be classified into none or weakly correlated systems in which electron electron e e interactions do not play any significant role, where the band gaps insensitive to temperature change. Meanwhile, in semiconductors containing ... "
2017
S67535
UI - Skripsi Membership  Universitas Indonesia Library
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Esri Nawati
Studi sifat transpor DNA: pengaruh hopping inter-strand tegak lurus pada DNA Aperiodik dan pengaruh medan listrik pada DNA G4 = Study of charge transport DNA: effect of perpendicular inter-strand hopping on Aperiodic DNA and effect of electric field on G4 DNA
" Sifat transpor muatan pada molekul DNA untai ganda dan DNA G4 telah dipelajari. Kami menggunakan dua model DNA yang direpresentasikan secara matematis dengan menggunakan model Hamiltonian tight binding. Model yang pertama adalah DNA untai ganda dengan panjang 32 pasangan basa yang disusun secara random. Transpor muatan untuk molekul DNA ini dipelajari dari probabilitas transmisi dan karakteristik I-V dengan memvariasikan hopping elektron inter-strand tegak lurus. Peningkatan hopping electron inter-strand tegak lurus menyebabkan probabilitas transmisi dan arus ... "
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2018
T50816
UI - Tesis Membership  Universitas Indonesia Library