Perovskite solar cells free of hole transport layer

Asad, Jihad; Shaat, Samy K.; Musleh, H.; Shurrab, Nabil Kh.; Issa, Ahmed; Lahmar, A.; Kahlout, A. Al; Dahoudi, Naji Al

doi:10.1007/s10971-019-04957-w

Cited by 12 publications

(6 citation statements)

References 28 publications

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“…The preparation methods for each film are described in the experimental section. As can be seen in the figures, we were able to confirm that the MAPbI 3 films were successfully fabricated 38,39 and the diffraction peaks originating from PEAI were found in MAPbI 3 / PEAI. [40][41][42] However, due to the thinness of the ZnO layer in MAPbI 3 /ZnO, the diffraction peaks arising from ZnO could not be observed.…”

Section: Resultssupporting

confidence: 68%

A new strategy for monitoring the charge transfer from perovskite thin films to electron transport layers using a heterodyne transient grating technique

Kim

Sohn

2023

Phys. Chem. Chem. Phys.

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Section: Resultssupporting

confidence: 68%

A new strategy for monitoring the charge transfer from perovskite thin films to electron transport layers using a heterodyne transient grating technique

Kim

Sohn

2023

Phys. Chem. Chem. Phys.

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“…In recent studies, using pin-holes in the HTL has resulted in poor stability of PSCs. Oxygen and moisture in the environment can penetrate through pin-holes and degrade the perovskite absorbent layer; however, the reason for producing pin-holes in HTL is still unclear [29]. To solve this problem, many studies have focused on developing efficient PSCs and new types of hole-transport materials as an alternative to Spiro-OMeTAD [30], or HTL-free PSCs, which are appropriate for simplifying the optimal process of the device, preventing perovskite degradation, and reducing the costs [31].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Perovskite Solar Cells Optimized by the Inverse Planar Method in SILVACO: 3D Electrical and Optical Models

Fakhri

Naderi²,

Farkoush

et al. 2021

Energies

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In recent years, perovskite solar cells (PSCs), often referred to as the third generation, have rapidly proliferated. Their most prominent deficiencies are their low efficiency and poor stability. To enhance their productivity, a combination of silicon and perovskite is employed. Here, we present a 3D simulation analysis of various electrical and optical properties of PSCs using the SILVACO simulation software. Using the inverted planar method with inorganic transport materials and the proper selection of anti-reflective coatings with a back contact layer increases the efficiency of PSCs to 28.064%, and enhances their stability without using silicone composites. Several materials, including CaF2, SiO2, and Al2O3, with various thicknesses have been employed to investigate the effect of anti-reflective coatings, and to improve the efficiency of the simulated PSC. The best thickness of the absorbent layer is 500 nm, using a CaF2 anti-reflective coating with an optimal thickness of 110 nm. A polymer composition of Spiro-OMeTAD and inorganic materials Cu2O and NiOx was used as the hole transport material (HTM) and inorganic ZnO was employed as the electron transport material (ETM) to optimize the solar cell efficiency, and an optimized thickness was considered for these materials. Yields of 29.261, 28.064 and 27.325% were obtained for Spiro-OMeTAD/ZnO, Cu2O/ZnO and NiOx/ZnO, respectively. Thus, Spiro-OMeTAD yields the highest efficiency. This material is highly expensive with a complex synthesis and high degradability. We proposed to employ Cu2O to alleviate these problems; however, this reduces the efficiency by 1.197%. As a graphene connector has high flexibility, reduces cell weight, and is cheaper and more accessible compared to other metals, it was regarded as an optimal alternative. The simulation results indicate that using the inverted planar method with inorganic transport materials for graphene-based PSCs is highly promising.

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“…Furthermore, the weak diffraction peaks detected at 28° and 35° were assigned to ( 200) and ( 213) planes of the cubic structure of CH3NH3PbI3 [17]. The diffraction peaks of belonging PbI2 at 12.70° and 39.58° were not observed due to PbI2 and CH3NH3I completely reacting [13].…”

Section: Xrd and Ftir Results Of Perovskite Thin Filmmentioning

confidence: 93%

“…Afterwards, the perovskite mother solution has been filtered through a 0.45μm PVDF filter and the solution colour turned from dark yellow to light yellow. The perovskite precursor solution was fabricated on an ITO substrate by the using spin coating method at 2000 rpm for 30 sec in a nitrogen medium [13]. The coated glasses were annealed for 60 minutes at 100 °C in a nitrogen medium.…”

Section: Device Preparation Proceduresmentioning

confidence: 99%

Fabrication and Performance of a Perovskite Solar Cell: Effect of Acetylacetone on Compact TiO2 Layer

Kaya

Boz

Boroğlu

2024

Gazi University Journal of Science

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Solar energy has been the most emphasized issue in recent years, as it is sustainable and causes zero emissions. Solar cells are of interest because they convert sunlight into electricity through photovoltaic effects. Over the last ten years, the efficiency of perovskite solar cells has achieved 25% due to the development of synthesis techniques and electrode materials etc. The electron transport layer, a hole transport layer their thickness and structure of surface etc. act an important role in improving the performance of perovskite solar cells. We have investigated the effect of the acid-assisted route and the acetylacetone-assisted (AA) route on TiO2 films and thus the effect of the efficiency of perovskite solar cells. Perovskite (CH3NH3PbI3) solar cells based on different c-TiO2 have been fabricated by the spin coating route, and the overall experimental section is made in the nitrogen medium at room temperature. Cracked c-TiO2 film obtained via the acid-assisted route. The planar heterojunction structure of ITO/AA-TiO2/CH3NH3PbI3/P3HT/Ag resulted 0.03% of power conversion efficiency (PCE). However, the perovskite solar cells with a mesoporous heterojunction structure of ITO/ AA-TiO2/m- TiO2 /CH3NH3PbI3/P3HT/Ag resulted 0.1% of PCE.

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Perovskite solar cells free of hole transport layer

Cited by 12 publications

References 28 publications

A new strategy for monitoring the charge transfer from perovskite thin films to electron transport layers using a heterodyne transient grating technique

A new strategy for monitoring the charge transfer from perovskite thin films to electron transport layers using a heterodyne transient grating technique

Simulation of Perovskite Solar Cells Optimized by the Inverse Planar Method in SILVACO: 3D Electrical and Optical Models

Fabrication and Performance of a Perovskite Solar Cell: Effect of Acetylacetone on Compact TiO2 Layer

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