Essays on CIGS

For many people who smoke electronic cigarettes, the main purpose is to combat nicotine addiction – this way people are trying to quit smoking modern tobacco products. Exploring the topic how effective the electronic cigarette is in combat against tobacco smoking, I pursue the only goal to prove that today the electronic cigarette is the life-saving panacea, which does not require the rejection of the smoking ritual but at the same time it does not cause the dangerous harm to the body of a smoker. Many people mistakenly believe that electronic cigarettes are dangerous to health – this statement is not ...

(Chemical Vapor Decomposition)

Introduction

Photovoltaic solar panels are designed for direct conversion of solar energy into electricity. They consist of a plurality of solar cells (cells) which are made of silicon, one of the most abundant elements on earth. Structurally, the photovoltaic solar module is electrically interconnected solar cells having output terminals for connecting the loads. Each cell contains a semiconductor layer 2: positive and negative. On the silicon layer is applied to one particular substance, whereby an excess of electrons. This forms a negatively charged n-layer. On the other layer created deficiency of electrons and becomes positively charged (p-layer). When a photon of ...

Vaporizing our futures

Researchers and health experts have proved again and again that tobacco, in any form, is extremely injurious for human health. However such findings and warnings have not deterred the smokers from smoking and there is no effect of such findings on the sales or use of cigarettes. The apathy of tobacco users is a major concern for policymakers and health experts. What is the reason for the ubiquity of cigarettes even though people know it is bad for their health? Mainly, people say that curiosity is the essential element in this problem. In our twenty first century, tobacco companies took a ...

Introduction

Alternative renewable energy continues to grow popularity because of the upsetting climate change caused by greenhouse gases, exhaustion of non-renewable energy resources and rising global demand for energy. Renewable resources of electricity production are vital progress and are fundamentally motivated by cost. Solar energy is clean and profuse that is why it is the best among the available substitutes. The modern solid-state photovoltaic (PV) technology began in 1954 upon the discovery of silicon (Si) diodes photovoltaic effect . Crystalline Si and a wide range of thin film solar cells, which are inorganic, are the prevailing photovoltaic technologies employed nowadays . ...

Figure 1Mechanism of electron flow in solar cell 3 Figure 2 Structure of typical Photovoltaic solar cell 3 Figure 3 Types and efficiency of different PV cells 4 Figure 4: Laboratory scale efficiency associated with size of different PV cells in China 5 Figure 5 Working mechanism or Principle of Solar Cell (Rongqiang.2006) 6 Figure 6 Efficiency for different silicon cells having varying combinations 7 Figure 7: Pricing of different installed PV systems 9

Photovoltaics Solar Power

1. Introduction The sun has been seen for decades as the center of the universe instead of an ...