Colloidal carbon dots based highly stable luminescent solar concentrators

Zhou, Yufeng; Benetti, Daniele; Tong, Xin; Liu, Jin; Wang, Zhiming M.; Ma, Dongling; Zhao, Haiguang; Rosei, Federico

doi:10.1016/j.nanoen.2017.12.017

Cited by 156 publications

(145 citation statements)

References 44 publications

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“…A very thin layer of PS/NC toluene solution was spin‐coated (or drop‐casted) on a glass substrate (4 mm in thickness) with thickness of 300 µm ( Figure a, top) . The absorption of the thin‐film LSC can be well controlled by varying the concentration of perovskite NCs (C 0 to 4C 0 ).…”

Section: Resultsmentioning

confidence: 99%

“…The calculated “average concentration” is 0.1 wt% for C 0 , which is in the similar concentration range with that of polymer matrix–based LSCs. Thus, the thin‐film architecture may not decrease the absorption energy loss . The as‐prepared LSCs (0.4 × 10 × 10 cm 3 ) are highly transparent as they can only absorb UV light and partially visible light (Figure a, left).…”

Section: Resultsmentioning

confidence: 99%

“…To address the increasing demand of renewable energy, researchers have focused on new emerging optoelectronic devices using solar technologies, such as photovoltaic (PV) devices, solar‐driven water splitting, and luminescent solar concentrators (LSCs) . Among them, LSCs could serve as a large‐area sunlight collector for efficient solar‐to‐electricity conversion .…”

Section: Introductionmentioning

confidence: 99%

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Zero‐Dimensional Perovskite Nanocrystals for Efficient Luminescent Solar Concentrators

Zhao

Sun

Wang

et al. 2019

Adv Funct Materials

Self Cite

170

133

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Luminescent solar concentrators (LSCs) are able to efficiently harvest solar energy through large-area photovoltaic windows, where fluorophores are delicately embedded. Among various types of fluorophores, all-inorganic perovskite nanocrystals (NCs) are emerging candidates as absorbers/emitters in LSCs due to their size/composition/dimensionality tunable optical properties and high photoluminescence quantum yield (PL QY). However, due to the large overlap between absorption and emission spectra, it is still challenging to fabricate high-efficiency LSCs. Intriguingly, zero-dimensional (0D) perovskites provide a number of features that meet the requirements for a potential LSC absorber, including i) small absorption/emission spectral overlap (Stokes shift up to 1.5 eV); ii) high PL QY (>95% for bulk crystal); iii) robust stability as a result of its large exciton binding energy; and iv) ease of synthesis. In this work, as a proof-of-concept experiment, Cs 4 PbBr 6 perovskite NCs are used to fabricate semi-transparent large-area LSCs. Cs 4 PbBr 6 perovskite film exhibits green emission with a high PL QY of ≈58% and a small absorption/emission spectral overlap. The optimized LSCs exhibit an external optical efficiency of as high as 2.4% and a power conversion efficiency of 1.8% (100 cm 2 ). These results indicate that 0D perovskite NCs are excellent candidates for high-efficiency LSCs compared to 3D perovskite NCs.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Zero‐Dimensional Perovskite Nanocrystals for Efficient Luminescent Solar Concentrators

Zhao

Sun

Wang

et al. 2019

Adv Funct Materials

Self Cite

170

133

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Section: Discussionmentioning

confidence: 99%

“…[118] Solvothermally prepared C-dots are typically water-soluble, and their luminescence properties can be tuned upon doping with Nitrogen sources during the synthesis. [118] Solvothermally prepared C-dots are typically water-soluble, and their luminescence properties can be tuned upon doping with Nitrogen sources during the synthesis.…”

Section: Carbon Dotsmentioning

confidence: 99%

The Renaissance of Luminescent Solar Concentrators: The Role of Inorganic Nanomaterials

Mazzaro

Vomiero

2018

Advanced Energy Materials

123

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While luminescent solar concentrators (LSCs) have a simple architecture—a transparent matrix embedding a luminescent fluorophore coupled with solar cells at the lateral side of the LSC slab—multiple paths for possible light losses exist. These are inherently interconnected, and in the past, limited the interest in this device, due to the gap between the theoretical possibilities and experimental achievements. This gap was a result, primarily, of the optical features of the luminescent dyes, since conventional organic luminophores are affected by limited performance in LSC devices. The rise of a wide portfolio of optically active inorganic nanomaterials in the last decade provides an alternative to organic dyes and has lead to a renaissance in the role of LSCs among the unconventional solar energy conversion devices. This paper reviews the latest results in the development of LSCs based on different classes of nanomaterials, focusing on the specific features and critically analyzing the pros and cons of the proposed structures. Particular attention is devoted to the role of the luminescence properties, e.g., the Stokes shift and the photoluminescence quantum yield, with respect to the performance of the LSC device. Future challenges to the successful employment of these devices for building integrated photovoltaics are also discussed.

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Luminescent Solar Concentrators

Merkx

Kolk

2020

Indoor Photovoltaics

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Colloidal carbon dots based highly stable luminescent solar concentrators

Cited by 156 publications

References 44 publications

Zero‐Dimensional Perovskite Nanocrystals for Efficient Luminescent Solar Concentrators

Zero‐Dimensional Perovskite Nanocrystals for Efficient Luminescent Solar Concentrators

The Renaissance of Luminescent Solar Concentrators: The Role of Inorganic Nanomaterials

Luminescent Solar Concentrators

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