Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Journal Home About Issues in Progress Current Issue All Issues Feature Issues

A numerical analysis of the effect of partially-coherent light in photovoltaic devices considering coherence length

Wooyoung Lee, Seung-Yeol Lee, Jungho Kim, Sung Chul Kim, and Byoungho Lee

Open Access Open Access

Abstract

We propose a method for calculating the optical response to partially-coherent light based on the coherence length. Using a Fourier transform of a randomly-generated partially-coherent wave, we demonstrate that the reflectance, transmittance, and absorption with the incidence of partially-coherent light can be calculated from the Poynting vector of the incident coherent light. We also demonstrate that the statistical field distribution of partially-coherent light can be obtained from the proposed method using a rigorous coupled wave analysis. The optical characteristics of grating structures in photovoltaic devices are analyzed as a function of coherence length. The method is capable of providing a general procedure for analyzing the incoherent optical characteristics of thick layers or nano particles in photovoltaic devices with the incidence of partially-coherent light.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Numerical modeling of the effect of multiple incoherent layers in Cu(In,Ga)Se2 solar cells based on the equispaced thickness averaging method

Kyungnam Kang, Sungchul Kim, and Jungho Kim
Appl. Opt. 57(11) 2758-2765 (2018)

First-principle calculation of solar cell efficiency under incoherent illumination

Michaël Sarrazin, Aline Herman, and Olivier Deparis
Opt. Express 21(S4) A616-A630 (2013)

Optical modeling of sunlight by using partially coherent sources in organic solar cells

Hamzeh Alaibakhsh and Ghafar Darvish
Appl. Opt. 55(7) 1808-1813 (2016)

View More...

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (8)
Fig. 1
Fig. 1 (a) Temporal behavior of a pseudo source in the time domain, (b) discrete Fourier transform of the pseudo source in Fourier domain, and (c) the modified partially-coherent source that originates from the data within the effective spectral width in time domain. The red diamonds represent data within the effective spectral width and the black diamonds represent the data outside of it.

Download Full Size | PDF

Fig. 2
Fig. 2 (a) Schematic diagram of Si thin film. Calculated (b) reflectance and (c) absorption spectra with coherent and partially-coherent lights.

Download Full Size | PDF

Fig. 3
Fig. 3 Calculated absorption spectra with oblique incidence (a) 30°, (b) 60°, and (c) 70°.

Download Full Size | PDF

Fig. 4
Fig. 4 (a) Schematic diagram of Si thin film with grating structures. Calculated (b) reflectance and (c) absorption spectra with coherent and partially-coherent lights.

Download Full Size | PDF

Fig. 5
Fig. 5 The amplitude distributions of the electric fields (a) with 525 nm (coherent), (b) with 525 nm (partially-coherent), (c) with 560 nm (coherent), and (d) with 560 nm (partially-coherent). The coherence time of partially-coherent wave is 5 fs.

Download Full Size | PDF

Fig. 6
Fig. 6 (a) Device structure of the CIGS solar cell. (b) Calculated absorption spectra with coherent and partially-coherent lights.

Download Full Size | PDF

Fig. 7
Fig. 7 (a) Device structure of the CIGS solar cell with grating structure. (b) Calculated absorption spectra with the coherent and partially-coherent lights.

Download Full Size | PDF

Fig. 8
Fig. 8 (a) Spectral current density of CIGS solar cell. (b) Spectral current density of CIGS solar cell with grating structure.

Download Full Size | PDF

Tables (1)

Tables Icon

Table 1 Total Current Density (mA/cm2) in the Absorption Layer of CIGS Solar Cells

View Table

Equations (13)

Equations on this page are rendered with MathJax. Learn more.

L c = c W s ,
x re [n]=sin( 2πf n N T+ ϕ i ),
ϕ i = ϕ i−1 + ϕ rand ​​​​​​​       (for​​​​​​​  i=1, 2, 3, ⋅⋅⋅),
X k = 1 N ∑ n=− N−1 2 N−1 2 x re [n] e −jk 2π N n .
x re [n]= X 0 +2 ∑ k=1 N−1 2 Re( X k e jk 2π N n ) ,
x im [n]=2 ∑ k=1 N−1 2 Im( X k e jk 2π N n ) .
x[n]= x re [n]+j x im [n]= X 0 +2 ∑ k=1 N−1 2 X k e jk 2π N n .
E= ∑ m=1 M E m = ∑ m=1 M ( E m,x , E m,y , E m,z ) e j ω m t ,
H= ∑ m=1 M H m = ∑ m=1 M ( H m,x , H m,y , H m,z ) e j ω m t ,
S z = E x H y * − E y H x * =( ∑ m=1 M E m,x e j ω m t )( ∑ m=1 M H m,y * e −j ω m t )−( ∑ m=1 M E m,y e j ω m t )( ∑ m=1 M H m,x * e −j ω m t ).
P z = 1 T ∫ 0 T S z dt = 1 T ∫ 0 T [ ∑ m=1 M ( E m,x H m,y * − E m,y H m,x * ) ] dt= ∑ m=1 M P z,m ,
P z,m = 1 T ∫ 0 T S z,m = 1 T ∫ 0 T ( E m,x H m,y * − E m,y H m,x * ) dt ,
T c = L c c .
Select as filters
Select Topics Cancel
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use