β-NaYF4:Yb3+, Tm3+@TiO2 core-shell nanoparticles incorporated into the mesoporous layer for high efficiency perovskite solar cells

Liang, Jiwei; Gao, Huiping; Yi, Mengji; Shi, Wenjia; Liu, Yuefeng; Zhang, Zhenlong; Mao, Yanli

doi:10.1016/j.electacta.2017.12.112

Cited by 43 publications

(18 citation statements)

References 32 publications

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“…In PSC devices, TiO 2 is the most widely used ETL material [26,[37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55] . The proper band gap and high transmittance of TiO 2 guarantee the high performance of PSCs.…”

Section: Introductionmentioning

confidence: 99%

SnO2-based electron transporting layer materials for perovskite solar cells: A review of recent progress

Chen

Meng

Zhang

et al. 2019

Journal of Energy Chemistry

155

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Section: Introductionmentioning

confidence: 99%

SnO2-based electron transporting layer materials for perovskite solar cells: A review of recent progress

Chen

Meng

Zhang

et al. 2019

Journal of Energy Chemistry

155

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“…Again, this probably results from a combination of effects, including improved crystallinity, partial transition from cubic to hexagonal phase, and sintering. While the general trend of first increasing and then decreasing emission intensity with increasing annealing or calcination temperature is consistent with other reports, the specific optimal temperature varies substantially depending upon the initial UCNC synthesis. − The optimal temperature of 450 °C observed here is within the range of previously reported values. ,− …”

Section: Resultsmentioning

confidence: 99%

Laser Pyrolysis Synthesis of Upconverting Lanthanide-Doped NaYF₄ Nanocrystals for Anticounterfeiting Applications

Malekzadeh

Mane

Xuan

et al. 2023

ACS Appl. Nano Mater.

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Laser pyrolysis, an aerosol nanosynthesis technique, uses a 10.6 μm CO 2 laser to rapidly heat precursors to induce decomposition and particle nucleation. A photosensitizing agent, usually SF 6 , absorbs the laser beam and transfers energy to the precursors. Here, we exploit the presence of SF 6 in the system and use it as a safe source of fluorine to synthesize NaYF 4 nanocrystals in a single-step process. NaYF 4 is an excellent host for rare-earth ions to create upconverting nanocrystals (UCNCs) that absorb infrared photons and emit at shorter wavelength. We thus dope the NaYF 4 nanocrystals during synthesis with ytterbium as a sensitizer and erbium, thulium, or holmium as an upconversion emitter. Each emitter produces upconversion emission at specific wavelengths in the visible spectral range after near-infrared light (∼980 nm peaked emission from laser diode) is absorbed by ytterbium followed by energy transfer to emitter. We then show that calcining these materials, in a simple second step, dramatically increases upconversion emission intensity. Finally, we optimize the laser pyrolysis process and postsynthesis calcination to produce the most intense emission at each emission color. We also show that these laser-synthesized UCNCs can be dispersed in a broad range of solvents and retain their visible upconversion emission. This dispersibility could be particularly valuable in creating inks for printing in anticounterfeiting applications. Proof-of-concept use of the synthesized UCNC for anticounterfeiting applications was demonstrated by drop-casting a dispersion of UCNC in stencils on paper, to create various luminescent patterns that were visible under irradiation by a 980 nm laser diode. Overall, this study demonstrates a promising vapor-phase route to rapid, single-step, continuous synthesis of lanthanide-doped fluoride nanomaterials for anticounterfeiting and related applications.

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“…Under the 980 nm NIR laser, the upconversion HPSCs had a certain PV property with a V OC of 0.89 V, a J SC of 0.74 mA cm −2 , a FF of 53.9%, and a PCE of 0.35%, but the mp‐TiO 2 cells were no PV response in the same condition. Other related studies also indicated that the rare earth ions doped NaYF 4 can be used as or modify on the CTLs in HPSCs by improving the PV property via upconversion approach 585–590 . Upconversion is a management mode of light, not confined to the inside of the device to utilize this functional material.…”

Section: Photon Engineeringmentioning

confidence: 99%

“…Other related studies also indicated that the rare earth ions doped NaYF 4 can be used as or modify on the CTLs in HPSCs by improving the PV property via upconversion approach. [585][586][587][588][589][590] Upconversion is a management mode of light, not confined to the inside of the device to utilize this functional material. For example, Chen et al 579 synthesized an upconversion single crystal of LiYF 4 :Yb 3+ /Er 3+ by using the Bridgman method, which was placed on the back of MAPbI 3 device on the path of the incident light to convert the NIR light in the ranges of 900-1000 nm and 1500-1600 nm to visible red and green light, and obtain the enhancement efficiency cells (Figure 21F).…”

Section: Upconversion Strategiesmentioning

confidence: 99%

Strategies for high‐performance perovskite solar cells from materials, film engineering to carrier dynamics and photon management

Chen

et al. 2022

InfoMat

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In recent years, halide perovskite solar cells (HPSCs) have attracted a great attention due to their superior photoelectric performance and the low‐cost of processing their quality films. In order to commercialize HPSCs, the researchers are focusing on developing high‐performance HPSCs. Many strategies have been reported to increase the power conversion efficiency and the long‐term stability of HPSCs over the past decade. Herein, we review the latest efforts and the chemical‐physical principles for preparing high‐efficiency and long‐term stability HPSCs in particular, concentrating on the perovskite materials, technologies for perovskite films, charge transport materials and ferroelectric effect to reduce the carrier loss, and photon management via plasmonic and upconversion effects. Finally, the key issues for future researches of HPSCs are also discussed with regard to the requirements in practical application.

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β-NaYF4:Yb3+, Tm3+@TiO2 core-shell nanoparticles incorporated into the mesoporous layer for high efficiency perovskite solar cells

Cited by 43 publications

References 32 publications

SnO2-based electron transporting layer materials for perovskite solar cells: A review of recent progress

SnO2-based electron transporting layer materials for perovskite solar cells: A review of recent progress

Laser Pyrolysis Synthesis of Upconverting Lanthanide-Doped NaYF₄ Nanocrystals for Anticounterfeiting Applications

Strategies for high‐performance perovskite solar cells from materials, film engineering to carrier dynamics and photon management

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β-NaYF4:Yb3+, Tm3+@TiO2 core-shell nanoparticles incorporated into the mesoporous layer for high efficiency perovskite solar cells

Cited by 43 publications

References 32 publications

SnO2-based electron transporting layer materials for perovskite solar cells: A review of recent progress

SnO2-based electron transporting layer materials for perovskite solar cells: A review of recent progress

Laser Pyrolysis Synthesis of Upconverting Lanthanide-Doped NaYF4 Nanocrystals for Anticounterfeiting Applications

Strategies for high‐performance perovskite solar cells from materials, film engineering to carrier dynamics and photon management

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Laser Pyrolysis Synthesis of Upconverting Lanthanide-Doped NaYF₄ Nanocrystals for Anticounterfeiting Applications