Issue 5, 2015

Perfect light trapping in nanoscale thickness semiconductor films with a resonant back reflector and spectrum-splitting structures

Abstract

The optical absorption of nanoscale thickness semiconductor films on top of light-trapping structures based on optical interference effects combined with spectrum-splitting structures is theoretically investigated. Nearly perfect absorption over a broad spectrum range can be achieved in <100 nm thick films on top of a one-dimensional photonic crystal or metal films. This phenomenon can be attributed to interference induced photonic localization, which enhances the absorption and reduces the reflection of the films. Perfect solar absorption and low carrier thermalization loss can be achieved when the light-trapping structures with a wedge-shaped spacer layer or semiconductor films are combined with spectrum-splitting structures.

Graphical abstract: Perfect light trapping in nanoscale thickness semiconductor films with a resonant back reflector and spectrum-splitting structures

Article information

Article type
Paper
Submitted
17 Oct 2014
Accepted
10 Dec 2014
First published
11 Dec 2014

Phys. Chem. Chem. Phys., 2015,17, 3303-3308

Author version available

Perfect light trapping in nanoscale thickness semiconductor films with a resonant back reflector and spectrum-splitting structures

J. Liu, X. Deng, W. Yang and J. Li, Phys. Chem. Chem. Phys., 2015, 17, 3303 DOI: 10.1039/C4CP04717F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements