Perovskite Thin Film Materials Stabilized and Enhanced by Zinc(II) Doping

Recent work of ten different groups shows that the application of zinc-halides in lead perovskite materials results in a contraction of the d-space, stronger interaction with the organic cation, improved crystallization with larger crystal domains, a Goldschmidt factor closer to unity, smoother and denser thin films and an even distribution of Zn(II) (at the Pb(II) sites) throughout the material. These combined effects may lead to: (1) a substantially higher stability (even at ambient or high humidity conditions); (2) enhanced luminescent properties; (3) a higher power conversion efficiency (PCE) of the corresponding solar cell devices (up to PCE ~20%, with enhancement factors of 1.07 to 1.33 relative to undoped material).

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Stabilizing black-phase formamidinium perovskite formation at room temperature and high humidity

Science ◽

10.1126/science.abf7652 ◽

2021 ◽

Vol 371 (6536) ◽

pp. 1359-1364

Author(s):

Wei Hui ◽

Lingfeng Chao ◽

Hui Lu ◽

Fei Xia ◽

Qi Wei ◽

...

Keyword(s):

Thin Film ◽

Room Temperature ◽

Power Conversion ◽

Light Stress ◽

Continuous Light ◽

Nanometer Scale ◽

High Humidity ◽

Lead Iodide ◽

Vertically Aligned ◽

Grown Structure

The stabilization of black-phase formamidinium lead iodide (α-FAPbI3) perovskite under various environmental conditions is considered necessary for solar cells. However, challenges remain regarding the temperature sensitivity of α-FAPbI3 and the requirements for strict humidity control in its processing. Here we report the synthesis of stable α-FAPbI3, regardless of humidity and temperature, based on a vertically aligned lead iodide thin film grown from an ionic liquid, methylamine formate. The vertically grown structure has numerous nanometer-scale ion channels that facilitate the permeation of formamidinium iodide into the lead iodide thin films for fast and robust transformation to α-FAPbI3. A solar cell with a power-conversion efficiency of 24.1% was achieved. The unencapsulated cells retain 80 and 90% of their initial efficiencies for 500 hours at 85°C and continuous light stress, respectively.

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High-performance Wide Bandgap Perovskite Solar Cells Fabricated in Ambient High-Humidity Conditions

Materials Advances ◽

10.1039/d1ma00432h ◽

2021 ◽

Author(s):

Ugur Deneb Menda ◽

Guilherme Ribeiro ◽

Daniela Nunes ◽

Tomás Calmeiro ◽

Hugo Águas ◽

...

Keyword(s):

Thin Film ◽

Solar Cells ◽

High Performance ◽

State Of The Art ◽

Power Conversion ◽

Perovskite Solar Cells ◽

Wide Bandgap ◽

High Humidity ◽

Halide Perovskite ◽

Lead Halide

Lead-halide perovskite solar cells (PSCs) are currently the most promising emergent thin-film photovoltaic technology, having already reached power conversion efficiency (PCE) levels of state-of-the-art wafer-based silicon cells. The class of...

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Nanostructured ZrO2-Y2O3-based systems for perovskite solar cells

Доклады Академии наук ◽

10.31857/s0869-56524846712-715 ◽

2019 ◽

Vol 484 (6) ◽

pp. 712-715

Author(s):

M. F. Vildanova ◽

A. B. Nikolskaia ◽

S. S. Kozlov ◽

O. K. Karyagina ◽

L. L. Larina ◽

...

Keyword(s):

Thin Film ◽

Solar Cells ◽

Power Conversion ◽

Perovskite Solar Cells ◽

Hydrothermal Conditions ◽

Yttria Content ◽

Optical And Electronic Properties ◽

Higher Power ◽

Nanostructured Systems ◽

Photovoltaic Parameters

ZrO2–Y2O3 nanostructured systems with different yttria content (Y2O3 = 0, 3 and 10 mol.%) were synthesized under hydrothermal conditions and their structural, optical and electronic properties were investigated. Using ZrO2–Y2O3 systems the electron-conductive thin-film photoelectrodes were fabricated and used to develop the perovskite solar cells (PSCs) with the device configuration glass/FTO/ZrO2-Y2O3/CH3NH3PbI3/spiro-MeOTAD/ Au. The comparative studies of the PSCs photovoltaic parameters revealed that under 1000 W/m2 (AM1.5G) illumination solar cells with ZrO2–Y2O3 photoelectrodes demonstrated considerably higher power conversion efficiency in comparison with PSCs based on the undoped ZrO2 photoelectrodes.

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Ferroelectric solar cells based on inorganic–organic hybrid perovskites

Journal of Materials Chemistry A ◽

10.1039/c5ta01325a ◽

2015 ◽

Vol 3 (15) ◽

pp. 7699-7705 ◽

Cited By ~ 73

Author(s):

Bo Chen ◽

Jian Shi ◽

Xiaojia Zheng ◽

Yuan Zhou ◽

Kai Zhu ◽

...

Keyword(s):

Thin Film ◽

Solar Cells ◽

High Performance ◽

Power Conversion ◽

Organic Hybrid ◽

Perovskite Materials ◽

Hybrid Perovskite ◽

Ferroelectric Oxides

Ferroelectric solar cells were fabricated by using the inorganic–organic hybrid perovskite materials, and power conversion efficieny as high as 6.7% had been obtained based on the MAPbI3−xClxthin film. This work provides an alternative avenue for high-performance ferroelectric solar cells beyond inorganic ferroelectric oxides.

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Phenethylammonium bismuth halides: from single crystals to bulky-organic cation promoted thin-film deposition for potential optoelectronic applications

Journal of Materials Chemistry A ◽

10.1039/c9ta07454f ◽

2019 ◽

Vol 7 (36) ◽

pp. 20733-20741 ◽

Cited By ~ 9

Author(s):

Mehri Ghasemi ◽

Miaoqiang Lyu ◽

Md Roknuzzaman ◽

Jung-Ho Yun ◽

Mengmeng Hao ◽

...

Keyword(s):

Thin Film ◽

Thin Films ◽

Surface Roughness ◽

Single Crystals ◽

Organic Cation ◽

Thin Film Deposition ◽

Film Deposition ◽

Optoelectronic Applications ◽

Excellent Stability

The phenethylammonium cation significantly promotes the formation of fully-covered thin-films of hybrid bismuth organohalides with low surface roughness and excellent stability.

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Synthesis of CaWO4:(Eu3+,Tb3+) Thin Films by a Two-Step Method at Room Temperature

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.710.170 ◽

2013 ◽

Vol 710 ◽

pp. 170-173

Author(s):

Lian Ping Chen ◽

Yuan Hong Gao

Keyword(s):

Thin Film ◽

Thin Films ◽

Phase Composition ◽

Room Temperature ◽

Electrochemical Techniques ◽

Luminescent Properties ◽

X Ray Diffraction ◽

Step Method ◽

X Ray ◽

Rare Earth Doped

It is hardly possible to obtain rare earth doped CaWO4thin films directly through electrochemical techniques. A two-step method has been proposed to synthesize CaWO4:(Eu3+,Tb3+) thin films at room temperature. X-ray diffraction, energy dispersive X-ray analysis, spectrophotometer were used to characterize their phase, composition and luminescent properties. Results reveal that (Eu3+,Tb3+)-doped CaWO4films have a tetragonal phase. When the ratio of n (Eu)/n (Tb) in the solution is up to 3:1, CaWO4:(Eu3+,Tb3+) thin film will be enriched with Tb element; on the contrary, when the ratio in the solution is lower than 1:4, CaWO4:(Eu3+,Tb3+) thin film will be enriched with Eu element. Under the excitation of 242 nm, sharp emission peaks at 612, 543, 489 and 589 nm have been observed for CaWO4:(Eu3+,Tb3+) thin films.

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Sol–gel synthesis and optical properties of titanium dioxide thin film

Modern Physics Letters B ◽

10.1142/s0217984918500768 ◽

2018 ◽

Vol 32 (09) ◽

pp. 1850076 ◽

Cited By ~ 3

Author(s):

Irfan Ullah ◽

Shaukat Ali Khattak ◽

Tanveer Ahmad ◽

Saman ◽

Nayab Ali Ludhi

Keyword(s):

Thin Film ◽

Titanium Dioxide ◽

Optical Properties ◽

Band Gap ◽

Surface Defects ◽

Sol Gel ◽

Luminescent Properties ◽

Localized States ◽

Indirect Transition ◽

Transmission And Absorption

The titanium dioxide (TiO2) is synthesized by sol–gel method using titanium-tetra-iso-propoxide (TTIP) as a starting material, and deposited on the pre-cleaned glass substrate using spin coating technique at optimized parameters. Energy dispersive X-ray (EDX) spectroscopy confirms successful TiO2 growth. The optical properties concerning the transmission and absorption spectra show 85% transparency and 3.28 eV wide optical band gap for indirect transition, calculated from absorbance. The exponential behavior of absorption edge is observed and attributed to the localized states electronic transitions, curtailed in the indirect band gap of the thin film. The film reveals decreasing refractive index with increasing wavelength. The photoluminescence (PL) study ascertains that luminescent properties are due to the surface defects.

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Effect of the π-linker on the performance of organic photovoltaic devices based on push–pull D–π–A molecules

New Journal of Chemistry ◽

10.1039/c8nj00915e ◽

2018 ◽

Vol 42 (14) ◽

pp. 11458-11464 ◽

Cited By ~ 5

Author(s):

Hong Chul Lim ◽

Jang-Joo Kim ◽

Jyongsik Jang ◽

Jong-In Hong

Keyword(s):

Power Conversion Efficiency ◽

Conversion Efficiency ◽

Bulk Heterojunction ◽

Power Conversion ◽

Organic Photovoltaic ◽

Photovoltaic Devices ◽

Organic Photovoltaic Devices ◽

Higher Power

The bulk heterojunction organic photovoltaic (OPV) devices based on 3T : PC71BM (2 wt%, 1 : 1.75 w/w) exhibited a higher power conversion efficiency of 2.58% than DTT-based OPV devices.

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A review on two-dimensional (2D) perovskite material-based solar cells to enhance the power conversion efficiency

Dalton Transactions ◽

10.1039/d1dt02991f ◽

2022 ◽

Author(s):

Ehsan Elahi ◽

Ghulam Dastgeer ◽

Abdul Subhan Siddiqui ◽

Supriya A. Patil ◽

Muhammad Waqas Iqbal ◽

...

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Power Conversion Efficiency ◽

Conversion Efficiency ◽

Power Conversion ◽

Two Dimensional ◽

Rapid Progress ◽

Perovskite Materials ◽

Perovskite Material

With perovskite materials, rapid progress in power conversion efficiency (PCE) to reach 25% has gained a significant amount of attention from the solar cell industry.

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