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P-N junction

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...

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A multifunctional 2D black phosphorene-based platform for improved photovoltaics.

Meng Zhang¹, Gill M Biesold¹, Zhiqun Lin¹

¹School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA. zhiqun.lin@mse.gatech.edu.

Chemical Society Reviews

|November 10, 2021

Summary

Black phosphorene (BP) offers unique semiconducting properties for advanced solar cells. This review explores BP

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Area of Science:

Materials Science
Nanotechnology
Renewable Energy

Background:

Black phosphorene (BP) is a 2D nanomaterial with exceptional optoelectronic properties.
Its tunable bandgap, high carrier mobility, and broad light absorption are key features.
BP is emerging as a promising material for next-generation solar cells.

Purpose of the Study:

To review the unique characteristics of black phosphorene for photovoltaic applications.
To outline scalable synthesis methods for black phosphorene production.
To discuss recent advances in various black phosphorene-based solar cells.

Main Methods:

Literature review and summary of black phosphorene properties.
Overview of top-down and bottom-up synthesis techniques.
Discussion of BP integration in organic, dye-sensitized, heterojunction, and perovskite solar cells.

Main Results:

Black phosphorene exhibits tunable bandgap, high carrier mobility, and broad light absorption.
Scalable synthesis routes facilitate BP's use in optoelectronics.
BP enhances solar cell performance through various mechanisms like charge transport and light harvesting.

Conclusions:

Black phosphorene is a versatile nanomaterial for advancing solar cell technology.
Further research into BP's application in photovoltaics is crucial.
Challenges and opportunities exist for BP in the rapidly evolving solar cell field.