Ultrasmall PbS quantum dots: a facile and greener synthetic route and their high performance in luminescent solar concentrators

Tan, Long; Zhou, Yufeng; Ren, Fuqiang; Benetti, Daniele; Yang, Fan; Zhao, Haiguang; Rosei, Federico; Chaker, Mohamed; Ma, Dongling

doi:10.1039/c7ta01372h

Cited by 49 publications

(34 citation statements)

References 36 publications

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“…An optical efficiency of 1.02% (claimed as a record) was reported for a G = 50 device (C = 0.50). [155] Sumner et al have reported a detailed analysis of optical losses in polymer LSCs based on NCs of CuInS 2 /CdS as emitters. LSCs of 7.5 × 7.5 × 0.10 cm of NC-containing poly(lauryl methacrylate-co-ethylene glycol) layer sandwiched between two 0.90 mm thick glass sheets led to an overall device thickness of 2.8 mm (G = 6.7).…”

Section: Emitters Based On Qds and Nanocrystalsmentioning

confidence: 99%

Luminescent Solar Collectors: Quo Vadis?

Roncali

2020

Advanced Energy Materials

116

111

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Luminescent solar concentrators (LSCs) are optical systems that absorb, convert, and concentrate solar light by means of photoluminescence of an emitting material embedded in a transparent waveguide. LSCs combine large possibilities of variation of shape, flexibility, color, and transparency and can operate under direct or diffuse light. LSCs were actively investigated in the period 1975–1985 in view of photovoltaic (PV) conversion. After 20 years of sleep, research on LSCs has reemerged in the first years of the millennium driven by their potential application for PV conversion in built environment. Research on LSCs aims at the development of new active and passive components, namely emitting and light‐guiding materials, and at the reduction of the loss factors associated with the elemental processed involved in the operation in order to improve power conversion efficiency. After a brief historical account, the operating principles, characterization, components, technology, and applications are reviewed. Finally, the performance of LSCs are critically discussed in a global perspective with particular emphasis on the basic contradiction between light concentration and conversion efficiency leading to some suggestions for future development of the topic.

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Section: Emitters Based On Qds and Nanocrystalsmentioning

confidence: 99%

Luminescent Solar Collectors: Quo Vadis?

Roncali

2020

Advanced Energy Materials

116

111

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“…These PbX [111] facets are undercoordinated and possess dangling bonds, where ligands will bind preferentially. Surface quantification studies have shown that PbX QDs have an excess of lead atoms, [47,48] which is significant in terms of ligand binding. It was shown that the number of ligands in oleate-capped PbX QDs correlates directly with the amount of excess surface Pb, with one ligand for each excess surface lead atom according to Moreels et al, [49] or one oleate ligand for every two surface Pb, according to Katsiev et al [50] The size of PbX QDs also influences their degradation dynamics.…”

Section: Seo 2 and Seomentioning

confidence: 99%

Stability of Quantum Dot Solar Cells: A Matter of (Life)Time

Albaladejo‐Siguan

Baird

Becker‐Koch

et al. 2021

Advanced Energy Materials

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“…PbS can be size-tuned to absorb strongly over a wide range of wavelength on the electromagnetic spectrum thereby shifting its absorption edge into the near infrared region [33]. PbS has widely been used in several opto-electronic devices which include photovoltaic cells [34], sensors [35], thermoelectrics [36], photodetectors [37], diodes [38], catalyst [39], photoconductors [40] and solar concentrators [41]. We have previously reported the syntheses of PbS nanoparticles and thin films using xanthates as precursors [6,21].…”

Section: Introductionmentioning

confidence: 99%

Lead ethyl dithiocarbamates: efficient single-source precursors to PbS nanocubes

et al. 2019

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Lead ethyl dithiocarbamates have been successfully used as single-source precursors for the deposition of PbS using spin coating followed by annealing at moderate temperatures. The thin films were characterized using a powder X-ray diffractometer and were found to be face-centred cubic with the (200) plane being the most preferred orientation. Scanning electron microscopy images showed the formation of well-defined cubes. Optical band gaps of PbS thin films were estimated using Tauc plots as 0.72, 0.73 and 0.77 eV at annealing temperatures of 250, 300 and 400°C. These band gaps were all blue shifted from the bulk value of 0.41 eV. Energy-dispersive X-ray analysis was used to determine the composition of the thin films which showed an approximately 1 : 1 Pb to S ratio.

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Ultrasmall PbS quantum dots: a facile and greener synthetic route and their high performance in luminescent solar concentrators

Abstract: Tributylphosphine-assisted greener synthesis of ultrasmall PbS quantum dots and their high performance in luminescent solar concentrator application.

Cited by 49 publications

References 36 publications

Luminescent Solar Collectors: Quo Vadis?

Luminescent Solar Collectors: Quo Vadis?

Stability of Quantum Dot Solar Cells: A Matter of (Life)Time

Lead ethyl dithiocarbamates: efficient single-source precursors to PbS nanocubes

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