A highly efficient ultraviolet to near-infrared converter to improve efficiency of Si solar cells: Yb3+-doped BaGd2(MoO 4)4

Ying Guan; Lin Qin; Yanlin Huang; Taiju Tsuboi; Wei Huang

doi:10.1016/j.matlet.2013.11.098

A highly efficient ultraviolet to near-infrared converter to improve efficiency of Si solar cells: Yb³⁺-doped BaGd₂(MoO ₄)₄

Ying Guan, Lin Qin, Yanlin Huang, Taiju Tsuboi, Wei Huang

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Efficient conversion from ultraviolet (UV) light to near infrared (NIR) emission has been demonstrated in a series of BaGd_2-xYb _x(MoO₄)₄ (x=0.001-2.0, i.e., Yb³⁺ concentration=0.05-100 mol%) polycrystals. The samples presented enhanced photosensitivity below 375 nm. Under UV light, an intense NIR emission around 1000 nm from ²F_5/2→²F_7/2 transitions of Yb³⁺ was observed, which just corresponds to spectral response of Si solar cells. The emission intensity in NIR region showed a dependence on Yb³⁺ contents. Taking into account the photoluminescence quantum efficiency, the optimal doping to increase the conversion efficiency of Si-solar cells was suggested to be 20 mol%. Diffuse reflectance and luminescence spectra were also systematically investigated to propose a reasonable mechanism for energy conversion process from the photo-excited charge transfer states.

Original language	English
Pages (from-to)	4-6
Number of pages	3
Journal	Materials Letters
Volume	117
DOIs	https://doi.org/10.1016/j.matlet.2013.11.098
State	Published - 15 Feb 2014
Externally published	Yes

Keywords

Ceramics
Energy transfer
Luminescence
Near-infrared emission
Solar cells

Access to Document

10.1016/j.matlet.2013.11.098

Cite this

@article{ad431bf98e2544a49d349d2f67b34f29,

title = "A highly efficient ultraviolet to near-infrared converter to improve efficiency of Si solar cells: Yb3+-doped BaGd2(MoO 4)4",

abstract = "Efficient conversion from ultraviolet (UV) light to near infrared (NIR) emission has been demonstrated in a series of BaGd2-xYb x(MoO4)4 (x=0.001-2.0, i.e., Yb3+ concentration=0.05-100 mol%) polycrystals. The samples presented enhanced photosensitivity below 375 nm. Under UV light, an intense NIR emission around 1000 nm from 2F5/2→2F7/2 transitions of Yb3+ was observed, which just corresponds to spectral response of Si solar cells. The emission intensity in NIR region showed a dependence on Yb3+ contents. Taking into account the photoluminescence quantum efficiency, the optimal doping to increase the conversion efficiency of Si-solar cells was suggested to be 20 mol%. Diffuse reflectance and luminescence spectra were also systematically investigated to propose a reasonable mechanism for energy conversion process from the photo-excited charge transfer states.",

keywords = "Ceramics, Energy transfer, Luminescence, Near-infrared emission, Solar cells",

author = "Ying Guan and Lin Qin and Yanlin Huang and Taiju Tsuboi and Wei Huang",

year = "2014",

month = feb,

day = "15",

doi = "10.1016/j.matlet.2013.11.098",

language = "英语",

volume = "117",

pages = "4--6",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A highly efficient ultraviolet to near-infrared converter to improve efficiency of Si solar cells

T2 - Yb3+-doped BaGd2(MoO 4)4

AU - Guan, Ying

AU - Qin, Lin

AU - Huang, Yanlin

AU - Tsuboi, Taiju

AU - Huang, Wei

PY - 2014/2/15

Y1 - 2014/2/15

N2 - Efficient conversion from ultraviolet (UV) light to near infrared (NIR) emission has been demonstrated in a series of BaGd2-xYb x(MoO4)4 (x=0.001-2.0, i.e., Yb3+ concentration=0.05-100 mol%) polycrystals. The samples presented enhanced photosensitivity below 375 nm. Under UV light, an intense NIR emission around 1000 nm from 2F5/2→2F7/2 transitions of Yb3+ was observed, which just corresponds to spectral response of Si solar cells. The emission intensity in NIR region showed a dependence on Yb3+ contents. Taking into account the photoluminescence quantum efficiency, the optimal doping to increase the conversion efficiency of Si-solar cells was suggested to be 20 mol%. Diffuse reflectance and luminescence spectra were also systematically investigated to propose a reasonable mechanism for energy conversion process from the photo-excited charge transfer states.

AB - Efficient conversion from ultraviolet (UV) light to near infrared (NIR) emission has been demonstrated in a series of BaGd2-xYb x(MoO4)4 (x=0.001-2.0, i.e., Yb3+ concentration=0.05-100 mol%) polycrystals. The samples presented enhanced photosensitivity below 375 nm. Under UV light, an intense NIR emission around 1000 nm from 2F5/2→2F7/2 transitions of Yb3+ was observed, which just corresponds to spectral response of Si solar cells. The emission intensity in NIR region showed a dependence on Yb3+ contents. Taking into account the photoluminescence quantum efficiency, the optimal doping to increase the conversion efficiency of Si-solar cells was suggested to be 20 mol%. Diffuse reflectance and luminescence spectra were also systematically investigated to propose a reasonable mechanism for energy conversion process from the photo-excited charge transfer states.

KW - Ceramics

KW - Energy transfer

KW - Luminescence

KW - Near-infrared emission

KW - Solar cells

UR - http://www.scopus.com/inward/record.url?scp=84890404156&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2013.11.098

DO - 10.1016/j.matlet.2013.11.098

M3 - 文章

AN - SCOPUS:84890404156

SN - 0167-577X

VL - 117

SP - 4

EP - 6

JO - Materials Letters

JF - Materials Letters

ER -

A highly efficient ultraviolet to near-infrared converter to improve efficiency of Si solar cells: Yb³⁺-doped BaGd₂(MoO ₄)₄

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this