Single crystalline SI solar cell
single -> wood [lumber]
Poly -> veneer board
High efficiency,
no matter where work
Due to indirect band gap,
optical absortion rate is very low
Single crystalline solar cell
Single crystalline
Classification Single crystalline
Degree of purity high
Defect density low
Efficiency High
Maximum limi
material. When the process begins, the hydrogen gas converts the catalyst to pure iron. Gradually, as the iron catalyst is poisoned by carbon and sulfur compounds, it becomes less effective and must be replaced. Nitrogen gas for the synthesis process comes from the atmosphere, while most of the hydrogen needed is extracted from natural gas sources. Once ammonia gas has been formed, it is liquefie
나노복합재료연구실 ( Nano Composite Research Lab.)
1. Purpose of this study
■ Measurement of Young's modulus using sonic resonant test
■ Measurement of Young's modulus using beam bending test
2. Introduction
Young's modulus is one of the important materials properties that is related with the bonding force between atoms or ions in materials. That will give a cle
A B S T R A C T
Biomass is an alternative renewable energy source which consists of carbon compounds like fossil fuel. Utilizing of biomass has drawn great attentions because the price of fossil fuel has gradually increased, and because biomass acts as reducing greenhouse effect mortar material like CO2. Extracting from biomass to energy source by thermal treatment can be classified into three
서론: 분자동역학 (Molecular Dynamics) 소개
우주를 이루는 물질은 수많은 원자들이 상호작용하며 복잡한 운동을 보이고 있다. 이러한 운동의 이해와 예측은 자연과학의 핵심 주제 중 하나이며, 분자동역학은 이를 수치적으로 모사하는 도구로서 주목받고 있다. 분자동역학은 뉴턴의 운동방정식을 활용하