P-n junction

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  • The Solar Of Solar Module

    977 Words  | 4 Pages

    Purpose In the present era where energy demands growing rapidly the solar module is one of the solutions and a good one. “More energy from the sunlight strikes the Earth in one hour (4.3 × 1020 J) than all the energy consumed on the planet in a year (4.1 × 1020 J)” therefore solar energy has a bright future ahead. The first solar cell was invented in 1953 and had efficacy rate of 4 present while toady’s solar cell is 40 present efficient. SolarCity is using the one of the efficient solar panels which

  • Advantages And Disadvantages Of Traditional Infrared Touch Laptops

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    Traditional Infrared Touchscreens Touchscreen interactive devices have become increasingly important in both consumer and commercial applications. They’re a large component of many everyday devices from your mobile to your chromebook. They’re “electronic visual displays that can detect the presence and location of a touch within the display area (Bhalla, 2010).” There is considered four different groups of touchscreen technologies each with its distinct advantages and disadvantages with some of

  • Electronic Final Exam Paper

    1096 Words  | 5 Pages

    INTERNATIONAL ISLAMIC UNIVERSITY MALAYSIA END OF SEMESTER EXAMINATION SEMESTER I, 2005/2006 SESSION KULLIYYAH OF ENGINEERING Programme Time Duration : ENGINEERING : 2:30 pm - 5:30 pm : 3 Hrs Section(s) : 3 Level of Study Date : UG 1 : 24/10/2005 Course Code : ECE 1312 Course Title : Electronics This Question Paper Consists of Eight (8) Printed Pages (Including Cover Page) With Six (6) Questions. INSTRUCTION(S) TO CANDIDATES DO NOT OPEN UNTIL YOU ARE ASKED TO DO SO • • • Total marks

  • The Physics of Semiconductor Devices Essay example

    2181 Words  | 9 Pages

    The Physics of Semiconductor Devices The purpose of this paper is to give a greater understanding of the semiconductor world, for Physics 100 students who have a little knowledge of electronics. I will cover conductors, insulators, semiconductors, and the operation of a diode and a transistor. The reason that it is important to understand these devices is the vast effect that they have had on our modern world. Our lives are filled by electronics, especially in this computerized age that

  • The Benefits Of Solar Panels

    1283 Words  | 6 Pages

    Solar Panels,” Cooler Planet explains the inner workings of solar panels by stating that: “Solar panels are made up of multiple individual solar cells, which act as large semi-conductors and utilize large-area p-n junction diodes. When the solar cells are exposed to sunlight, the p-n junction diodes convert the energy from sunlight into usable

  • The Degradation Of Solar Cell

    1003 Words  | 5 Pages

    Allen belt region. Also, solar cell theory is mathematically modeled and described using Matlab simulation software accompanied by the SRIM software to generate the targeting data. Follow with the degradation modeling of Si, InGaP/GaAs/Ge triple-junction space solar cells when are exposed to high energy charged particles, especially protons and electrons in the Mega-electron-Volt range. In this model, carrier removal rate of the base layer and damage coefficient of minority carrier diffusion length

  • Comparing The And Hetero Junctions

    1638 Words  | 7 Pages

    3.1 Homo- and Hetero-junctions When the semiconductor materials are homogeneous throughout the entire structure is called a semiconductor homojunction. Materials used to form a homojunction will have similar energy bandgaps, On the other hand, when two different semiconductor materials are used to form a junction, the junction is called a semiconducror heterojunction. The hetero junction is formed with narrow bandgap material with wide bandgap material. Figure 1 shows three possible combinations

  • Why Do Solar Cell? Essay

    1774 Words  | 8 Pages

    materials by applying a voltage across some region of semiconductor Note: Doping and Electric Field can be applied locally at small scale and allow us to build small switches (ON/OFF) P-N JUNCTION A p-n junction is two type of semiconductor material brought together and form the junction. One is n-type doped material and the other p-type doped material (e.g.

  • Electricity Is A Natural Phenomenon

    2060 Words  | 9 Pages

    Electricity is the directional flow of electrons between atoms. Electricity is a natural phenomenon and is one of the most commonly utilized forms of energy. Electricity is used in order to do work, such as generating heat and light. Electricity is measured in watts. Watts are the measurement of power (current * voltage). Current is the flow of electrons measured in amperes (Amps). One ampere is the amount of current when one coulomb (6.25 x 10^18 electrons) of charge moves past a point over one

  • Why Are Metallic And Covalent Bonding?

    1598 Words  | 7 Pages

    Metallic and Covalent Bonding: All matter is composed of building blocks in the form of atoms. Atoms consist of three subatomic particles, protons, neutrons and electrons. Protons are positively charged, neutrons have no charge and together they form the nucleus in the centre of the atom. Electrons are negatively charged and form shells in which they orbit the nucleus. Figure 1 Each shell has a maximum number of electrons it can contain, with the first shell containing up to 2, the second shell

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