Simultaneous Multiple Wavelength Upconversion in a Core–Shell Nanoparticle for Enhanced Near Infrared Light Harvesting in a Dye-Sensitized Solar Cell

Yuan, Chunze; Chen, Guanying; Li, Lin; Damasco, Jossana A.; Ning, Zhijun; Xing, Hui; Zhang, Tianmu; Sun, Licheng; Zeng, Hao; Cartwright, Alexander N.; Prasad, Paras N.; Ågren, Hans

doi:10.1021/am504866g

Cited by 81 publications

(38 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown, the photon energy of the 980 nm excitation matches well with the energy required to excite the Yb 3+ ion from the ground multiplet 2 F 7/2 to the excited multiplet 2 F 5/2 . The NIR energy is converted into the visible spectrum energy via the internal energy transfer (ET) of UCPs under the excitation of 980 nm light, and the resultant visible light is received by the N719 dye sensitizers, via the fluorescence resonance energy transfer (FRET) and luminescence‐mediated energy transfer (LET) processes, as shown in Figure . Such visible emissions can be effectively absorbed by N719 dyes.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Commercial Upconversion Phosphors with High Light Harvesting: A Superior Candidate for High‐Performance Dye‐Sensitized Solar Cells

Mao

Jing

et al. 2019

Physica Status Solidi (a)

View full text Add to dashboard Cite

An efficient photoanode for dye‐sensitized solar cells (DSSCs) requires a particular feature of high light harvesting. Herein, a promising new type of upconversion phosphors (UCPs)‐TiO2 composite photoanode for enhanced light harvesting in DSSCs is designed, resorting to the use of commercial upconversion β‐NaYF4:Yb3+, Er3+ phosphors with submicrometer‐sized irregular shapes. The excellent light scattering coupled with an additional near‐infrared light‐harvesting effect of upconversion β‐NaYF4:Yb3+, Er3+ nanoparticles contribute to the greatly enhanced light harvesting. Meanwhile, the incorporation of such UCPs into photoanodes involves the aggravation of charge recombination at the interface of photoanode–electrolyte; this unfavorable influence is minimized via the coating of a thin TiO2 layer on UCPs. The successful balance of the competition between such positive and negative impacts results in an optimal weight ratio of 15% for UCPs/TiO2; the corresponding DSSC delivers a power conversion efficiency (PCE) up to 7.17%, much higher than that of 5.45% for the bare TiO2 nanoparticle‐based device. This study highlights the great contributions of commercial β‐NaYF4:Yb3+, Er3+ UCPs to the efficient light harvesting for enhanced photovoltaic performance of DSSCs.

show abstract

Section: Resultsmentioning

confidence: 99%

“…This fact encourages researchers to explore new strategies for enhancing the LHE of photoanodes. One promising approach is to introduce upconversion materials into photoanodes, thus converting NIR light to visible light …”

Section: Introductionmentioning

confidence: 99%

Commercial Upconversion Phosphors with High Light Harvesting: A Superior Candidate for High‐Performance Dye‐Sensitized Solar Cells

Mao

Jing

et al. 2019

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

“…Upconversion luminescence materials have been used to improve the efficiency of solar cell, such as lanthanide doped upconverting nanoparticles (UCNPs) [16]. Bulk upconversion luminescence glass obtains advantages: (1) it can enlarge the concentration of the doped rare earth ions in order to obtain high upconversion luminescence; (2) the bulk glass form can be mechanically fabricated; (3) it can be easily for the practical use.…”

Section: Resultsmentioning

confidence: 99%

“…Qiao et al [15] used the upcoversion nanoparticles to detect of primary gastric tumor and lymphatic metastasis. Yuan et al [16] achieved the improvement of the overall conversion efficiency of the dye sensitized solar cells by using the upconversion colloidal nanoparticles. However, the low upconversion efficiency limits the practical application of upconversion luminescence materials.…”

Section: Introductionmentioning

confidence: 99%

Upconversion 32Nb2O5–10La2O3–16ZrO2 glass activated with Er3+/Yb3+ and dye sensitized solar cell application

Lia

Lin

et al. 2017

J Adv Ceram

View full text Add to dashboard Cite

Er 3+ /Yb 3+ codoped niobium pentoxide glasses were fabricated by the aerodynamic levitation (ADL) method with rapid cooling rate. All samples with various doping concentrations showed good upconversion luminescence properties under 980 nm laser excitation. The structure, transmittance spectrum, and luminescence properties of the samples were systemically investigated by XRD, UV-Vis-NIR spectrophotometer, and upconversion spectra. All transparent samples exhibited green and red upconversion emissions centered at 532, 547, and 670 nm. Experimental results showed that the sample codoped with 1 mol% Er 3+ /Yb 3+ has the strongest upconversion emissions, and the increase of the doped Yb 3+ concentration results in the increased red emission and reduced green emission. The logI-logP plot of green emission indicated that the green emissions reach the saturation at high pump power excitation, deviating from the low-power regime. After one-photon energy transfer (ET) process, 4 I 11/2 + 4 I 11/2 → 4 F 7/2 + 4 I 15/2 process between the two neighboring Er 3+ ions was responsible for the population of the 4 S 3/2 / 4 H 11/2 states. The niobium pentoxide codoped with Er 3+ /Yb 3+ bulk glasses could be used in the dye sensitized solar cell (DSSC) to improve the efficiency.

show abstract

“…In comparison with downshifting spectral conversion, which arises naturally because it does not violate the principle of energy conservation, photon upconversion is not readily at hand in nature and is thus especially estimable in order to make use of a larger part of the electromagnetic spectrum. In particular, upconversion of infrared light, an important part of the electromagnetic spectrum, has attracted strong interest in many technological areas such as energy harvesting and biomedical imaging . In energy applications, the abundant infrared light in the solar irradiation spectrum has for long constituted the hardest part to be utilized due to its insufficient photon energy, which cannot induce sufficient optoelectronic response of photovoltaic materials.…”

Section: Introductionmentioning

confidence: 99%

Photon Upconversion Kinetic Nanosystems and Their Optical Response

Liu

Huang

Valiev

et al. 2017

Laser & Photonics Reviews

Self Cite

View full text Add to dashboard Cite

Lanthanide-doped photon upconversion nanoparticles (UCNPs) are capable of converting low-intensity near-infrared light to UV and visible emission through the synergistic effects of light excitation and mutual interactions between doped ions. UCNPs have attracted strong interest as unique spectrum converters and found a multitude of applications in areas like biomedical imaging, energy harvesting and information technology. UCNPs are distinct from many other types of luminescent materials in terms of the involvement of a host lattice and multiple optical centers, i.e., trivalent lanthanide ions with manyfolds of accessible long-lived energy states, in individual nanoparticles. The mutual interactions between these optical centers, i.e., sequential energy transfers, make them operate as an integrated unit and co-determine the luminescence kinetics and other optical properties of the individual nanoparticle. Thus, each nanoparticle consititutes a kinetic optical system. In this work, we explore UCNPs from the outset of being such kinetic optical systems and review their physical formation, the underlying photophysics, macroscopic statistical description, and their response to various optical stimuli in the spectral, polarization, intensity, temporal and frequency domains, and demonstrate ways that their optical output can be optimized by manipulating the excitation schemes. Our review highlights upconversion nanotechnology as an interdisciplinary field across chemistry, physics and biomedical engineering, with great future possibilities, flexibility and ramifications. We outline some of the potential directions of upconversion nanoparticle research.

show abstract

Simultaneous Multiple Wavelength Upconversion in a Core–Shell Nanoparticle for Enhanced Near Infrared Light Harvesting in a Dye-Sensitized Solar Cell

Cited by 81 publications

References 42 publications

Commercial Upconversion Phosphors with High Light Harvesting: A Superior Candidate for High‐Performance Dye‐Sensitized Solar Cells

Commercial Upconversion Phosphors with High Light Harvesting: A Superior Candidate for High‐Performance Dye‐Sensitized Solar Cells

Upconversion 32Nb2O5–10La2O3–16ZrO2 glass activated with Er3+/Yb3+ and dye sensitized solar cell application

Photon Upconversion Kinetic Nanosystems and Their Optical Response

Contact Info

Product

Resources

About