Optical geometries for fiber-based organic photovoltaics

Liu, Jiwen; Namboothiry, Manoj A. G.; Carroll, David

doi:10.1063/1.2716864

Cited by 74 publications

(47 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A core-sheath structure, where the light could be wave guided into the photoactive layer along the axial direction, has been studied recently [100][101][102].…”

Section: Opv Structure Designmentioning

confidence: 99%

Towards High Performance Organic Photovoltaic Cells: A Review of Recent Development in Organic Photovoltaics

2014

View full text Add to dashboard Cite

Organic photovoltaic cells (OPVs) have been a hot topic for research during the last decade due to their promising application in relieving energy pressure and environmental problems caused by the increasing combustion of fossil fuels. Much effort has been made toward understanding the photovoltaic mechanism, including evolving chemical structural motifs and designing device structures, leading to a remarkable enhancement of the power conversion efficiency of OPVs from 3% to over 15%. In this brief review, the advanced progress and the state-of-the-art performance of OPVs in very recent years are summarized. Based on several of the latest developed approaches to accurately detect the separation of electron-hole pairs in the femtosecond regime, the theoretical interpretation to exploit the comprehensive mechanistic picture of energy harvesting and charge carrier generation are discussed, especially for OPVs with bulk and multiple heterojunctions. Subsequently, the novel structural designs of the device architecture of OPVs embracing external geometry modification and intrinsic structure decoration are presented. Additionally, some approaches to further increase the efficiency of OPVs are described, including thermotics and dynamics modification methods. Finally, this review highlights the challenges and prospects with the aim of providing a better understanding towards highly efficient OPVs.

show abstract

“…A core-sheath structure, where the light could be wave guided into the photoactive layer along the axial direction, has been studied recently [100][101][102].…”

Section: Opv Structure Designmentioning

confidence: 99%

Towards High Performance Organic Photovoltaic Cells: A Review of Recent Development in Organic Photovoltaics

2014

View full text Add to dashboard Cite

show abstract

“…An intrinsic light trapping design, the optical fiber or the cascade (micro-concentrator) photovoltaic cell is a unique concept which is based upon an architecture that is light trapping due to the very nature of an optical fiber ( Figure 15) [136][137][138]. This kind of architecture makes use of a waveguide as the substrate for the solar cell into which the incident light is coupled.…”

Section: Apfo3-pcbmmentioning

confidence: 99%

Designs and Architectures for the Next Generation of Organic Solar Cells

et al. 2010

View full text Add to dashboard Cite

Organic solar cells show great promise as an economically and environmentally friendly technology to utilize solar energy because of their simple fabrication processes and minimal material usage. However, new innovations and breakthroughs are needed for organic solar cell technology to become competitive in the future. This article reviews research efforts and accomplishments focusing on three issues: power conversion efficiency, device stability and processability for mass production, followed by an outlook for optimizing OSC performance through device engineering and new architecture designs to realize next generation organic solar cells.

show abstract

“…12 Clearly, the only way to achieve a critical angle at ITO-P 3 HT boundary is that n c should be less than n 1 ͑n c Ͻ n 1 ͒, and sin should not be greater than one which from a fundamental optical point of view makes no sense. 13,14 In essence, a simplistic nonphysics approach to look at fiber based solar cells ͑our m-C cells͒ is not suitable; therefore, our effort is to develop a more efficient method of light capturing ͑for the optical concentration͒ by looking at a mathematical based model to pinpoint how to concentrate light within the m-C cell. Our technique aims to analyze what happens to light as it goes from the fiber entrance into the active semiconductor layer and to address the effect of the different refractive indices as light propagates through the m-C cell to achieve maximum absorption.…”

Section: Resultsmentioning

confidence: 99%

Microconcentrator photovoltaic cell (the m-C cell): Modeling the optimum method of capturing light in an organic fiber based photovoltaic cell

Curran

Talla

Dias

et al. 2008

Journal of Applied Physics

View full text Add to dashboard Cite

We propose a new architecture as an alternative method when constructing organic photovoltaics (PVs) by addressing the best method to trap resonant light within the devices using fiber optics to concentrate light in the form of a microconcentrator cell (m-C cell). Our initial effort is to address how the m-C cells manage light absorption using a mathematical model that considers all the required parameters including the incident angle, meridional plane, cross sectional area, and path length. By knowing the materials, refractive index, we are able to calculate the optical angular input to achieve maximum absorption of resonant light. We also addressed the complexity of how changing refractive indices in a multilayer device can alter the angular dependence when considering the incident input light. The consequence is that we can ensure efficient absorption of resonant light in a thin film yet without issues of transmission losses which are evident in all other thin film organic PVs.

show abstract

Optical geometries for fiber-based organic photovoltaics

Cited by 74 publications

References 11 publications

Towards High Performance Organic Photovoltaic Cells: A Review of Recent Development in Organic Photovoltaics

Towards High Performance Organic Photovoltaic Cells: A Review of Recent Development in Organic Photovoltaics

Designs and Architectures for the Next Generation of Organic Solar Cells

Microconcentrator photovoltaic cell (the m-C cell): Modeling the optimum method of capturing light in an organic fiber based photovoltaic cell

Contact Info

Product

Resources

About