Heavy Metal Free Nanocrystals with Near Infrared Emission Applying in Luminescent Solar Concentrator

Chen, Wei; Li, Jiagen; Liu, Peizhao; Liu, Haochen; Xia, Jiu-Xu; Li, Shang; Wang, Dan; Wu, Dan; Lü, Wei; Sun, Xiao Wei; Wang, Kai

doi:10.1002/solr.201700041

Cited by 56 publications

(40 citation statements)

References 43 publications

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“…More importantly, the CuInSe 2 /ZnS QDs' PL emission can be tuned ranging from 600-850 nm by varying the size of CuInSe 2 QDs, as shown in Figure 5c. [76] Numerous synthetic methods have been developed to synthesize AgInS 2 QDs such as thermal decomposition, etc. [71] Klimov et al studied the size dependent Stokes shift of CuInS 2 QDs.…”

Section: Ternary Eco-friendly Qdsmentioning

confidence: 99%

“…[97] The PL emission of CuInSe 2 /ZnS QDs is derived from the transition between a conduction-band electron and a localized hole located at Cu-related defect (Figure 11a, right). [76] Meinardi et al used the ternary alloyed "green" I-III-VI 2 semiconductor of CuInSe 2 S 2−x (CISeS) QDs to fabricate LSC. Figure 11b displays the optical image of CuInSe 2 /ZnS QDbased LSC under visible light, showing dark color of such LSC that is caused by the low visible transmittance (VT).…”

Section: Wwwadvancedsciencecommentioning

confidence: 99%

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Eco‐Friendly Colloidal Quantum Dot‐Based Luminescent Solar Concentrators

et al. 2019

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Luminescent solar concentrators (LSCs) have attracted significant attention as promising solar energy conversion devices for building integrated photovoltaic (PV) systems due to their simple architecture and cost‐effective fabrication. Conventional LSCs are generally comprised of an optical waveguide slab with embedded emissive species and coupled PV cells. Colloidal semiconductor quantum dots (QDs) have been demonstrated as efficient emissive species for high‐performance LSCs because of their outstanding optical properties including tunable absorption and emission spectra covering the ultraviolet/visible to near‐infrared region, high photoluminescence quantum yield, large absorption cross sections, and considerable photostability. However, current commonly used QDs for high‐performance LSCs consist of highly toxic heavy metals (i.e., cadmium and lead), which are fatal to human health and the environment. In this regard, it is highly desired that heavy metal‐free and environmentally friendly QD‐based LSCs are comprehensively studied. Here, notable advances and developments of LSCs based on unary, binary, and ternary eco‐friendly QDs are presented. The synthetic approaches, optical properties of these eco‐friendly QDs, and consequent device performance of QD‐based LSCs are discussed in detail. A brief outlook pointing out the existing challenges and prospective developments of eco‐friendly QD‐based LSCs is provided, offering guidelines for future device optimizations and commercialization.

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Section: Ternary Eco-friendly Qdsmentioning

confidence: 99%

Section: Wwwadvancedsciencecommentioning

confidence: 99%

Eco‐Friendly Colloidal Quantum Dot‐Based Luminescent Solar Concentrators

et al. 2019

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“…Chen et al investigated the feasibility of AgInS 2 / ZnS QDs LSCs, [104] characterized by elevated Stokes shift, large absorption interval and NIR emission, differently from Cu-based analogues. Chen et al investigated the feasibility of AgInS 2 / ZnS QDs LSCs, [104] characterized by elevated Stokes shift, large absorption interval and NIR emission, differently from Cu-based analogues.…”

Section: Ternary Alloys and Environmentally Friendly Chalcogenidesmentioning

confidence: 99%

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

Mazzaro

Vomiero

2018

Advanced Energy Materials

130

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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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“…Concerns over the toxicity of the materials used in LSCs have led to the search for QDs that do not require any heavy metals [490,491]. Therefore, devices with CuInS 2 , AgInS 2 , and CuInSeS were developed with promising results [521][522][523][524]. In particular, CuInSe x S 2−x QDs in poly(lauryl methacrylate) have produced a colorless LSC, and the low reabsorption and high emission of the QDs allowed for optical power efficiency of 3.2% in a 12×12×0.3 cm 3 large area LSC, making the possibility of LSC windows more realistic [524].…”

Section: Quantum Dot Based Lscsmentioning

confidence: 99%

Nanostructured photovoltaics

2019

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In this review, we begin by discussing the need for harnessing renewable energy resources in the context of global energy demands. A summary of firstand second-generation solar cells, their efficiency and grid parity is provided, followed by the need to reduce material and installation costs, and achieve higher efficiencies beyond the Shockley-Queisser limit imposed on single junction cells. We also discuss the specific advantages offered by nanomaterials in enhanced energy harvesting, what design platforms comprise nanostructured photovoltaics, and list the prominent categories of nanomaterials used in the design of third generation solar cells. We review the significant nanostructured photovoltaic platforms that have encouraging power conversion efficiencies, have the potential for long term stability (both structural and functional) and have received attention in the field. In addition to their operational principle, we highlight both their advantages and shortcomings, along with insights into possible improvements. We include alternate routes to improving power conversion efficiency, not by tuning material properties to match the solar spectrum but using additives and/or structural modifications to allow more efficient harvesting of sunlight, either by reducing losses or by altering the spectral properties. The properties of nanomaterials that make them well-suited as active materials in photovoltaic devices (broadband absorption, high quantum yield, etc.) also make them ideal candidates for luminescent solar concentrators (LSCs). These devices also harvest solar energy, but instead of directly allowing charge generation, they act as downconverters for other photovoltaic cells. We review dye, thin film, and quantum dot based LSCs that have garnered a lot of attention in recent years as these devices face a resurgence given the advances in materials science and engineering which have led to novel quantum dots and hybrid semiconductors. The review ends with where the future of nanostructured photovoltaics is headed, what device designs and materials development are needed to achieve efficiencies beyond the Shockley-Queisser limits and fulfil the goal of the 3rd and 4th generation photovoltaics.

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Heavy Metal Free Nanocrystals with Near Infrared Emission Applying in Luminescent Solar Concentrator

Cited by 56 publications

References 43 publications

Eco‐Friendly Colloidal Quantum Dot‐Based Luminescent Solar Concentrators

Eco‐Friendly Colloidal Quantum Dot‐Based Luminescent Solar Concentrators

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

Nanostructured photovoltaics

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