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Related Concept Videos

P-N junction01:11

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
Voltaic/Galvanic Cells02:47

Voltaic/Galvanic Cells

Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Electrochemical Cells01:28

Electrochemical Cells

Electrochemical cells are systems that convert chemical energy into electrical energy or use electrical energy to drive chemical reactions. They consist of two electrodes in contact with an electrolyte, where redox reactions enable electron transfer. Most electrochemical cells include two half-cells connected by an external wire for electron flow and a salt bridge for ion flow. The salt bridge contains an electrolyte solution and maintains charge neutrality by allowing ions—not electrons—to...
Charging Conductors By Induction01:15

Charging Conductors By Induction

The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
Magnetic Field Due to Two Straight Wires01:18

Magnetic Field Due to Two Straight Wires

Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.

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Related Experiment Video

Updated: May 13, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
08:07

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Published on: June 18, 2013

Novel solar cells in a wire format.

Tao Chen1, Longbin Qiu, Zhibin Yang

  • 1State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China.

Chemical Society Reviews
|March 8, 2013
PubMed
Summary

Photovoltaic wires offer lightweight, flexible alternatives to traditional solar cells, enabling integration into textiles. This review details advancements, challenges, and future directions for wire-shaped solar cells.

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Published on: July 19, 2019

Area of Science:

  • Materials Science
  • Energy Science
  • Electrical Engineering

Background:

  • Wire-shaped photovoltaic (PV) devices are gaining traction due to their unique advantages over planar structures.
  • Their lightweight and flexible nature allows integration into textiles and complex devices, opening new application avenues.

Purpose of the Study:

  • To review recent advancements in wire-shaped photovoltaic devices, focusing on dye-sensitized and polymer solar cells.
  • To illustrate key architectures, compare substrate choices, and summarize challenges and future prospects.

Main Methods:

  • Review of recent literature on wire-shaped solar cells.
  • Detailed illustration of core-sheath and twisted fiber architectures.
  • Comparative analysis of substrate materials used in PV wire development.

Main Results:

  • Advancements in dye-sensitized and polymer solar cells are presented.
  • Two primary architectures (core-sheath and twisted fibers) are discussed.
  • Key substrate materials and their impact on performance are highlighted.

Conclusions:

  • Wire-shaped solar cells present unique advantages for applications like electronic textiles.
  • Current challenges include low energy conversion efficiency and stability.
  • Future research should focus on overcoming these limitations for broader adoption.