Application of combinative TiO2nanorods and nanoparticles layer as the electron transport film in highly efficient mixed halides perovskite solar cells

Khorasani, Azam; Marandi, Maziar; zad, Azam Iraji; Taghavinia, Nima

doi:10.1016/j.electacta.2018.11.169

Cited by 14 publications

(8 citation statements)

References 61 publications

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“…It can be seen from the spectra that the perovskite thin films absorb a wide range of light from 400 to 800 nm. The two absorption spectra are similar, with a typical absorption at 740 nm [36] associated to the direct optical transition of the perovskite MAPbI 3 , a second transition around 490 nm associated to the direct optical transition of the lead-iodide octahedra PbI 6 [37]. It is evident that the strongest absorbance is obtained for the sample using the PEDOT: PSS as an HTL indicating the high quality of the perovskite layer which is in good agreement with the SEM measurements.…”

Section: Optical Propertiessupporting

confidence: 80%

“…This behavior can be explained by the formation of unordered crystals. It has been previously reported that the PL emission shift was related with the crystallization of the perovskite material [16,44,45].…”

Section: Photoluminescence Propertiesmentioning

confidence: 93%

“…The most research studies on the planar PSCs have focused on the optimizing the morphology of the perovskite active layer by controlling the crystallization process, such as the perovskite composition [15,16], the methods of elaboration [17,18], the annealing treatment [19,20] and the additive engineering [21,22]. To further improve the efficiency of the planar PSCs, efficient carriers transport to the hole transport layer (HTL) and the electron acceptor layer (ETL) is a critical requirement to demonstrate highly efficient planar solar cells.…”

Section: Introductionmentioning

confidence: 99%

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Effect of the hole transporting layers on the inverted perovskite solar cells

Mehdi

Matheron

Mhamdi

et al. 2021

J Mater Sci: Mater Electron

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Organic-inorganic hybrid perovskite solar cells have become one of the most promising photovoltaic technologies with conversion efficiency exceeding 25%. Increasing the efficiency of the perovskite solar cells is one of the most important challenges in the photovoltaic domain. The development of good hole transport layers (HTLs) is crucial for high-performance perovskite-based photovoltaic systems. Furthermore, it is important to accurately optimize the energy level matching between perovskites and hole transport materials via better charge collection. This work explores the effect of the HTLs on the growth process, morphology and crystallinity of the perovskite active layer and their impacts on the photovoltaic performance. Devices with planar inverted architecture ITO/ HTL/MAPbI 3-x Cl x /PC 60 BM/BCP/Ag were fabricated using a one-step deposition method. The effects of the use of various HTL materials and the effect of the thermal annealing treatment of this layer were investigated. Morphological and microstructural analyzes of the perovskite films were carried out by scanning electron microscopy, X-ray diffraction. The optical properties in particular the absorption and the recombination process were studied by UV-vis absorption spectroscopy and photoluminescence spectroscopy. The photoelectric properties were investigated by photocurrent-voltage characteristic curves.

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Section: Optical Propertiessupporting

confidence: 80%

Section: Photoluminescence Propertiesmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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Effect of the hole transporting layers on the inverted perovskite solar cells

Mehdi

Matheron

Mhamdi

et al. 2021

J Mater Sci: Mater Electron

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“…Perovskite solar cells (PSCs) have attracted considerable attention owing to their high power conversion efficiency (PCE) reaching 22.7% with relatively low cost of fabrication compared with conventional silicon-based solar cells. , The excellent optoelectronic properties of organic–inorganic perovskites such as the high absorption coefficient, broad band light absorption, direct and tunable band gap energy, low exciton binding energy, ambipolar charge transport, and long charge-carrier diffusion length lead to extremely high performance in photovoltaic devices. − …”

Section: Introductionmentioning

confidence: 99%

Optimization of CuIn_1–XGa_XS₂ Nanoparticles and Their Application in the Hole-Transporting Layer of Highly Efficient and Stable Mixed-Halide Perovskite Solar Cells

Khorasani

Marandi

Khosroshahi³

et al. 2019

ACS Appl. Mater. Interfaces

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Inorganic hole-transport materials (HTMs) have been frequently applied in perovskite solar cells (PSCs) and are a promising solution to improve the poor stability of PSCs. In this study, we investigate solution-processed copper indium gallium disulfide (CIGS) nanocrystals (NCs) as a dopant-free inorganic HTM in n–i–p type PSCs. Moreover, Cs0.05(MA0.17-FA0.83)0.95Pb(I0.83Br0.17)3 mixed-halide perovskite with proper crystalline quality and long-time stability was utilized as the light-absorbing layer under ambient conditions. To optimize the cell performance and better charge extraction from the perovskite layer, the Ga concentration in the Cu(In1–X Ga X )S2 composition was changed, and the X value was altered between 0.0 and 0.75. It was shown that the CIGS band gap enhances with increasing Ga content; thus, with tunable band gaps and engineering of the energy level alignment, a better collection of photogenerated holes and a reduced electron–hole recombination rate could be achieved. The maximum power conversion efficiency of 15.6% was obtained for the PSC with Cu(In0.5Ga0.5)S2 hole-transport layer composition, which is the highest efficiency reported so far for CIGS-based dopant-free PSCs. This value is very close to the efficiency of devices fabricated with doped spiro-OMeTAD as an organic HTM. Additionally, the stability of nonencapsulated PSCs was studied, and CIGS-based devices demonstrated 70% retention after 90 days of aging in the dark and in 50% relative humidity conditions. This result is quite better than the similar measurements for the doped spiro-OMeTAD-based devices.

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“…Recently, it has been shown that, to increase light trapping capacity in perovskite solar cells, TiO2 can be prepared in form of nano-tube or nano-particles [31] or nano-bar and nano-particle through the hydrothermal method. It's been shown that perovskite solar cell efficiency obtained 12.2% [32]. Currently, photovoltaic cells with heterojunctions are being seriously investigated because they are a promising route toward converting solar energy with high efficiency and low cost [33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Extracting Optimal Preparation Parameters of TiO2 Electron Transmission Layer in Perovskite Solar Cell for Increasing Efficiency of the Cell

Solookinejad¹,

Asadi²,

Izadneshan³

2020

Preprint

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In this research, a thin film of titanium dioxide was prepared as electron transporting layer to be used in perovskite solar cell simulation. The thin film TiO 2 was prepared under different lab conditions such as changing the chamber pressure from 2.0×10 -2 to 4.0×10 -2 mbar and changing the power of deposition device from 200 to 240 watts for different thickness ranging from 30 to 150 nm. Radio frequency magnetron sputtering method has been used to fabricate the layers under the mentioned laboratory conditions. Then, the band gap energy of the thin films was calculated by Tauc’s plot method. It was shown that the bands gap energy which is one of the contributing factors in solar cell characteristics, such as short-circuit current, open-circuit voltage, fill factor and solar cell efficiency, highly depends on laboratory conditions of preparing the thin film and it changes with changes in deposition parameters of the device. The simulated solar cells were considered as ZnO:Al/TiO 2 compact layer/CH 3 NH 3 SnI 3 /CuI/Au. Investigation on the effects of preparation conditions of TiO 2 on properties of the cell and perovskite soar efficiency was carried out using experimental data related to TiO 2 and extraction of data of other layers from authentic articles using comsol multiphysics software. In comparison with other preparation conditions, the prepared layer with 30 nm thickness under 240 watts device power and 3.5×10 -2 mbar chamber pressure had the best possible results. In this condition, perovskite solar cell characteristics obtained I s c = 22.368mA, V o c = 1.02mV, % FF = 80.522 and % PCE = 18.371.

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Application of combinative TiO2nanorods and nanoparticles layer as the electron transport film in highly efficient mixed halides perovskite solar cells

Cited by 14 publications

References 61 publications

Effect of the hole transporting layers on the inverted perovskite solar cells

Effect of the hole transporting layers on the inverted perovskite solar cells

Optimization of CuIn_1–XGa_XS₂ Nanoparticles and Their Application in the Hole-Transporting Layer of Highly Efficient and Stable Mixed-Halide Perovskite Solar Cells

Extracting Optimal Preparation Parameters of TiO2 Electron Transmission Layer in Perovskite Solar Cell for Increasing Efficiency of the Cell

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Application of combinative TiO2nanorods and nanoparticles layer as the electron transport film in highly efficient mixed halides perovskite solar cells

Cited by 14 publications

References 61 publications

Effect of the hole transporting layers on the inverted perovskite solar cells

Effect of the hole transporting layers on the inverted perovskite solar cells

Optimization of CuIn1–XGaXS2 Nanoparticles and Their Application in the Hole-Transporting Layer of Highly Efficient and Stable Mixed-Halide Perovskite Solar Cells

Extracting Optimal Preparation Parameters of TiO2 Electron Transmission Layer in Perovskite Solar Cell for Increasing Efficiency of the Cell

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Optimization of CuIn_1–XGa_XS₂ Nanoparticles and Their Application in the Hole-Transporting Layer of Highly Efficient and Stable Mixed-Halide Perovskite Solar Cells