Efficiency improvement of Si solar cells using metal-enhanced nanophosphor fluorescence

Chen, J. Y.; Huang, Chien-Yao; Hung, W. B.; Sun, Kien-Wen; Chen, Teng‐Ming

doi:10.1016/j.solmat.2013.08.039

Cited by 56 publications

(27 citation statements)

References 27 publications

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“…Then bright yellowish-green light can be observed by naked eyes. In the lattices, the V 5+ ions occupy the distorted T d sites in the tetrahedral VO 4 3− with V-O bond length in the range of 1.6600 (22) [31]. The V 5+ ion has a closed-shell electronic structure with no d electron.…”

Section: Resultsmentioning

confidence: 99%

“…The V 5+ ion has a closed-shell electronic structure with no d electron. Considering the electronic structure of VO 4 3− ion in distorted T d symmetry, the electron charge transfer process from the 2p orbital of O 2− to 3d orbital of V 5+ ion is involved in the excitation and luminescence phenomena. The molecular orbits of VO 4 are expressed as the ground 1 A 1 state and the excited 1 T 1 , 1 T 2 , 3 T 1 , and 3 T 2 states.…”

Section: Resultsmentioning

confidence: 99%

“…All the PLE spectra show two broad excitation bands between 250 and 400 nm with two peaks at 280 nm (Ex 1 : 1 A 1 → 1 T 2 ) and 365 nm (Ex 2 : 1 A 1 → 1 T 1 ). They are attributed to charge transfer transitions in VO 4 3− .…”

Section: Intrinsic Luminescence Of Undoped Pyrovanadatesmentioning

confidence: 98%

“…However, the conversion efficiency of solar energy is heavily constrained by the spectra mismatch between the solar spectrum and the response curve of crystalline silicon (c-Si) semiconductor with a band gap of 1.12 eV (∼1100 nm) [4]. In general, the spectral response of conventional Si-based solar cells is much weaker in ultraviolet (UV) range below 400 nm than in red and near-infrared (NIR) range [5].…”

Section: Introductionmentioning

confidence: 99%

“…The absorption band of pyrovanadates is located in the region of 300-450 nm, and the efficient energy transfer from VO 4 3− to Yb 3+ can realize the NIR emission. In this wok the relationship between the luminescence and the structure was identified.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Conversion and quantum efficiency from ultraviolet light to near infrared emission in Yb 3+ -doped pyrovanadates M ZnV 2 O 7 ( M = Ca, Sr, Ba)

Guan¹,

Huang²,

Tsuboi³

et al. 2014

Materials Science and Engineering: B

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Intrinsic Luminescence Of Undoped Pyrovanadatesmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Conversion and quantum efficiency from ultraviolet light to near infrared emission in Yb 3+ -doped pyrovanadates M ZnV 2 O 7 ( M = Ca, Sr, Ba)

Guan¹,

Huang²,

Tsuboi³

et al. 2014

Materials Science and Engineering: B

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Towards Efficient Spectral Converters through Materials Design for Luminescent Solar Devices

2017

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Single-junction photovoltaic devices exhibit a bottleneck in their efficiency due to incomplete or inefficient harvesting of photons in the low- or high-energy regions of the solar spectrum. Spectral converters can be used to convert solar photons into energies that are more effectively captured by the photovoltaic device through a photoluminescence process. Here, recent advances in the fields of luminescent solar concentration, luminescent downshifting, and upconversion are discussed. The focus is specifically on the role that materials science has to play in overcoming barriers in the optical performance in all spectral converters and on their successful integration with both established (e.g., c-Si, GaAs) and emerging (perovskite, organic, dye-sensitized) cell types. Current challenges and emerging research directions, which need to be addressed for the development of next-generation luminescent solar devices, are also discussed.

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Down‐conversion materials for organic solar cells: Progress, challenges, and perspectives

et al. 2022

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Organic solar cells (OSCs) in terms of power conversion efficiency (PCE) and operational lifetime have made remarkable progress during the last decade by improving the active layer materials and introducing new interlayers. The newly developed wide bandgap organic donor and low bandgap acceptor molecules covered the absorption from the visible to the near-infrared region. Whereas the incident high energy region (UV) is not in favor of OSCs. Its absorption causes thermalization losses and photoinduced degradation, which hinders the PCE and lifetime of OSCs. Recently, lanthanide and non-lanthanide-based down-conversion (DC) materials have been introduced, which can effectively convert the high-energy photons (UV) to low-energy photons (visible) and resolve the spectral mismatch losses that limit the absorption of OSCs in high energy incident spectrum. Furthermore, the DC materials also protect the OSCs from UV-induced degradation. The DC materials were also proposed to cross the Shockley-Queisser efficiency limit of the solar cell. In this review, the need for DC materials and their processing method for OSCs have been thoroughly discussed. However, the main emphasis has been given to developing lanthanides and non-lanthanides-based DC materials for OSCs, their applications, and their impact on photovoltaic device performance, stability, and future perspectives.

show abstract

Efficiency improvement of Si solar cells using metal-enhanced nanophosphor fluorescence

Cited by 56 publications

References 27 publications

Conversion and quantum efficiency from ultraviolet light to near infrared emission in Yb 3+ -doped pyrovanadates M ZnV 2 O 7 ( M = Ca, Sr, Ba)

Conversion and quantum efficiency from ultraviolet light to near infrared emission in Yb 3+ -doped pyrovanadates M ZnV 2 O 7 ( M = Ca, Sr, Ba)

Towards Efficient Spectral Converters through Materials Design for Luminescent Solar Devices

Down‐conversion materials for organic solar cells: Progress, challenges, and perspectives

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