Photovoltaic (PV) systems are playing a more and more important role as a renewable energy supplier. However, their large-scale applications is still limited by low conversion efficiency and high land-use requirement, especially for those areas where land and solar energy resources are more important for agriculture. In this paper, we suggest a dish-type high-concentration photovoltaic system, with which the competition between sunlight for crops' growth and PV application is solved by beam-splitting techniques. A purposely-designed beam filter acts as a solar spectrum splitter, and the most effective bands of solar spectrum for plant growth are transmitted down to plants while the other parts are all directed to the solar cell receiver. The spectral and spatial distribution of radiant intensity is investigated by ray tracing method, and the quantitative evaluation of the beam splitting effect on crop growth and PV power generation is provided in detail. The results show that, on one hand, the proposed system is superior to other natural and artificial light sources at driving the photosynthetic process (thus promoting crop growth); on the other hand, it generates PV power with high efficiency. Furthermore, the design can be optimized for certain kinds of plants and PV generation, both or independently. This spectral splitting scheme opens a promising future for PV applications in cooperation with precision farming.

1.
J. M.
Gordon
, “
Concentractor optics
,” in
Concentrator Photovoltaics
, edited by
A.
Luque
and
V.
Andreev
(
Springer
,
New York
,
2007
), p.
113
132
.
2.
K.-K.
Chong
,
S.-L.
Lau
,
T.-K.
Yew
, and
P. C.-L.
Tan
, “
Design and development in optics of concentrator photovoltaic system
,”
Renewable Sustainable Energy Rev.
19
,
598
612
(
2013
).
3.
S.
Ong
,
C.
Campbell
,
P.
Denholm
,
R.
Margolis
, and
G.
Heath
, Land-Use Requirements for Solar Power Plants in the United States, Prepared under Task Nos. SS12.2230 and SS13.1040, U.S. Department of Energy's National Renewable Energy Laboratory (
2014
).
4.
A. G.
Imenes
and
D. R.
Mills
, “
Spectral beam splitting technology for increased conversion efficiency in solar concentrating systems: A review
,”
Sol. Energy Mater. Sol. Cells
84
(
1–4
),
19
69
(
2004
).
5.
A.
Barnett
 et al, “
Very high efficiency solar cell modules
,”
Prog. Photovoltaics: Res. Appl.
17
(
1
),
75
83
(
2009
).
6.
J. D.
McCambridge
 et al, “
Compact spectrum splitting photovoltaic module with high efficiency
,”
Prog. Photovoltaics
19
(
3
),
352
360
(
2011
).
7.
M.
Stefancich
 et al, “
Single element spectral splitting solar concentrator for multiple cells CPV system
,”
Opt. Express
20
(
8
),
9004
9018
(
2012
).
8.
B.
Mitchell
 et al, “
Four-junction spectral beam-splitting photovoltaic receiver with high optical efficiency
,”
Prog. Photovoltaics
19
(
1
),
61
72
(
2011
).
9.
S.
Kim
 et al, “
Development of thin-lm solar cells using solar spectrum splitting technique
,”
Sol. Energy Mater. Sol. Cells
119
,
214
218
(
2013
).
10.
J. E.
Ludman
 et al, “
The optimization of a holographic system for solar power generation
,”
Sol. Energy
60
(
1
),
1
9
(
1997
).
11.
D. M.
Zhang
,
J. M.
Castro
, and
R. K.
Kostuk
, “
One-axis tracking holographic planar concentrator systems
,”
J. Photonics Energy
1
(
1
),
015505
(
2011
).
12.
H.
Qingli
 et al, “
Design and fabrication of a diffractive optical element as a spectrum-splitting solar concentrator for lateral multifunction solar cells
,”
Appl. Opt.
52
(
11
),
2312
2319
(
2013
).
13.
Y.
Yao
,
H.
Liu
, and
W.
Wu
, “
Spectrum splitting using multi-layer dielectric meta-surfaces for efficient solar energy harvesting
,”
Appl. Phys. A
115
(
3
),
713
719
(
2014
).
14.
D.
Wei
,
X.
HongHua
, and
L.
Jing
, “
Analysis of solar PV tracking system
,”
Acta Energ. Sol. Sin.
28
(
2
),
169
173
(
2007
).
15.
C.
Gueymard
, “
Parameterized transmittance model for direct beam and circumsolar spectral irradiance
,”
Sol. Energy
71
(
5
),
325
346
(
2001
).
16.
K. R.
Cope
,
M.
Chase Snowden
, and
B.
Bugbee
, “
Photobiological interactions of blue light and photosynthetic photon flux: Effects of monochromatic and broad-spectrum light sources
,”
Photochem. Photobiol.
90
,
574
584
(
2014
).
17.
X.-F.
Yu
and
X.-C.
Zhang
, “
Effects of elevated atmospheric CO2 concentration and shading on leaf light utilization and yield of wheat
,”
Chin. J. Eco-Agric.
20
(
7
),
895
900
(
2012
).
18.
X.
Yan
,
J.
Yin
,
S.
Duan
,
B.
Zhou
,
W-h.
Hu
, and
S.
Liu
, “
Photosynthesis light response curves of four rice varieties and model fitting
,”
Chin. J. Ecology
32
(
3
),
604
610
(
2013
).
19.
F.
Meng
,
J.
Zhang
,
C.
Hao
,
Z.
Zhou
,
H.
Li
,
D.
Liu
,
K.
Wang
, and
H.
Zhang
, “
Effects of elevated CO 2 and different irrigation on photosynthetic parameters and yield of maize in Northeast China
,”
Acta Ecol. Sin.
35
(
7
),
2126
2135
(
2015
).
20.
H.
Wang
,
F.
Wang
,
G.
Wang
, and
K.
Majourhat
, “
The responses of photosynthetic capacity, chlorophyll fluorescence and chlorophyll content of nectarine (Prunus persica var. Nectarina Maxim) to greenhouse and field grown conditions
,”
Sci. Hortic.
112
,
66
72
(
2007
).
21.
H. C.
Timm
,
J.
Stegemann
, and
M.
Küppers
, “
Photosynthetic induction strongly affects the light compensation point of net photosynthesis and coincidentally the apparent quantum yield
,”
Trees
16
,
47
62
(
2002
).
22.
S. W.
Hogewoning
,
E.
Wientjes
,
P.
Douwstra
,
G.
Trouwborst
,
W.
van Ieperen
,
R.
Croce
, and
J.
Harbinson
, “
Photosynthetic quantum yield dynamics: From photosystems to leaves
,”
Plant Cell
24
,
1921
1935
(
2012
).
23.
D.
Gao
,
Q.
Han
, and
S.
Zhang
, “
Value conversion between plant photometry and luminous photometry
,”
China Illumin. Engineer. J.
26
,
28
(
2015
).
24.
S. M.
Sze
,
Physics of Semiconductor Devices
, 2nd ed. (
Wiley
,
New York
,
1981
), Chap. 2 and 14.
25.
S. J.
Fonash
,
Solar Cell Device Physics
(
Academic Press
,
New York
,
1981
).
26.
D. J.
Mbewe
,
H. C.
Card
, and
D. C.
Card
, “
A model of silicon solar cells for concentrator photovoltaic and photovoltaic thermal system design
,”
Sol. Energy
35
(
3
),
247
258
(
1985
).
27.
M. A.
Green
,
K.
Emery
,
Y.
Hishikawa
,
W.
Warta
,
E. D.
Dunlop
,
D. H.
Levi
, and
A. W. Y.
Ho-Baillie
, “
Solar cell efficiency tables (version 49)
,”
Prog. Photovoltaics: Res.
25
,
3
13
(
2017
).
28.
H.
Shao
,
L.
Xu
, and
P.
Yao
,
Absorption Spectrum Measurements and Spectral Control in Plants
(
University of Science and Technology of China
,
2015
).
29.
J.
Pan
,
Y.
Jiang
,
P.
Guo
, and
Y.
Zhang
, “
Analysis of China's solar energy resources and environmental meteorological factors
,”
Sci. Technol. Rev.
32
(
20
),
15
21
(
2014
).
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