Enhanced efficiency and air-stability of NiOX-based perovskite solar cells via PCBM electron transport layer modification with Triton X-100

Nanoscale ◽  
2017 ◽  
Vol 9 (42) ◽  
pp. 16249-16255 ◽  
Author(s):  
Kisu Lee ◽  
Jaehoon Ryu ◽  
Haejun Yu ◽  
Juyoung Yun ◽  
Jungsup Lee ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Acid Methyl Ester ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Acid Methyl ◽  
Butyric Acid Methyl Ester ◽  
Triton X

In this work, a phenyl-C61-butyric acid methyl ester (PCBM) electron transport layer was modified with Triton X-100, and this improved the photovoltaic performance and air-stability of perovskite solar cells.

scholarly journals Phenyl-C61-Butyric Acid Methyl Ester Hybrid Solution for Efficient CH3NH3PbI3 Perovskite Solar Cells

2019 ◽  
Vol 11 (14) ◽  
pp. 3867
Author(s):  
MiJoung Kim ◽  
MoonHoe Kim ◽  
JungSeock Oh ◽  
NamHee Kwon ◽  
Yoonmook Kang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Methyl Ester ◽  
Butyric Acid ◽  
Perovskite Solar Cells ◽  
Acid Methyl Ester ◽  
Absorber Layer ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Acid Methyl ◽  
Butyric Acid Methyl Ester

Organic–inorganic halide perovskite solar cells (PSCs) have excellent chemical, electronic, and optical properties, making them attractive next-generation thin-film solar cells. Typical PSCs were fabricated with a perovskite absorber layer between the TiO2 electron-transport layer (ETL) and the 2,2′,7,7′-tetrakis-(N,N-di-4-methoxyphenylamino)-9,9′-spirobifluorene (Spiro-OMeTAD) hole-transport layer (HTL). We examined the influence of phenyl-C61-butyric acid methyl ester (PCBM) on the PSC device. PSCs using the PCBM layer as an ETL were investigated, and the absorber layer was coated by dissolving PCBM in a methyl ammonium lead iodide (MAPbI3) precursor solution to examine the changes at the perovskite interface and inside the perovskite absorber layer. The PSCs fabricated by adding a small amount of PCBM to the MAPbI3 solution exhibited a significantly higher maximum efficiency of 16.55% than conventional PSCs (14.34%). Fabricating the PCBM ETL and PCBM-MAPbI3 hybrid solid is expected to be an efficient route for improving the photovoltaic performance.

scholarly journals The Influence of the Thickness of Compact TiO2 Electron Transport Layer on the Performance of Planar CH3NH3PbI3 Perovskite Solar Cells

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3295
Author(s):  
Andrzej Sławek ◽  
Zbigniew Starowicz ◽  
Marek Lipiński
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Transport Layer ◽  
Electron Transport Layer

In recent years, lead halide perovskites have attracted considerable attention from the scientific community due to their exceptional properties and fast-growing enhancement for solar energy harvesting efficiency. One of the fundamental aspects of the architecture of perovskite-based solar cells (PSCs) is the electron transport layer (ETL), which also acts as a barrier for holes. In this work, the influence of compact TiO2 ETL on the performance of planar heterojunction solar cells based on CH3NH3PbI3 perovskite was investigated. ETLs were deposited on fluorine-doped tin oxide (FTO) substrates from a titanium diisopropoxide bis(acetylacetonate) precursor solution using the spin-coating method with changing precursor concentration and centrifugation speed. It was found that the thickness and continuity of ETLs, investigated between 0 and 124 nm, strongly affect the photovoltaic performance of PSCs, in particular short-circuit current density (JSC). Optical and topographic properties of the compact TiO2 layers were investigated as well.

scholarly journals Improving the Performances of Perovskite Solar Cells via Modification of Electron Transport Layer

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 147 ◽  
Author(s):  
Mao Jiang ◽  
Qiaoli Niu ◽  
Xiao Tang ◽  
Heyi Zhang ◽  
Haowen Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Acid Methyl Ester ◽  
Short Circuit Current ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Simple Method ◽  
Film Forming

The commonly used electron transport material (6,6)-phenyl-C61 butyric acid methyl ester (PCBM) for perovskite solar cells (PSC) with inverted planar structures suffers from properties such as poor film-forming. In this manuscript, we demonstrate a simple method to improve the film-forming properties of PCBM by doping PCBM with poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT) as the electron transport layer (ETL), which effectively enhances the performance of CH3NH3PbI3 based solar cells. With 5 wt % F8BT in PCBM, the short circuit current (JSC) and fill factor (FF) of PSC both significantly increased from 17.21 ± 0.15 mA·cm−2 and 71.1 ± 0.07% to 19.28 ± 0.22 mA·cm−2 and 74.7 ± 0.21%, respectively, which led to a power conversion efficiency (PCE) improvement from 12.6 ± 0.24% to 15 ± 0.26%. The morphology investigation suggested that doping with F8BT facilitated the formation of a smooth and uniform ETL, which was favorable for the separation of electron-hole pairs, and therefore, an improved performance of PSC.

scholarly journals Investigation of the Effects of Various Organic Solvents on the PCBM Electron Transport Layer of Perovskite Solar Cells

Coatings ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 237
Author(s):  
Chih-Hung Tsai ◽  
Chia-Ming Lin ◽  
Cheng-Hao Kuei
Keyword(s):  
Surface Roughness ◽  
Solar Cells ◽  
Electron Transport ◽  
Organic Solvents ◽  
Electrochemical Impedance ◽  
Perovskite Solar Cells ◽  
Acid Methyl Ester ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
X Ray

In this study, four organic solvents including 1,2-dichlorobenzene (DCB), chlorobenzene (CB), methylbenzene (MB), and chloroform (CF) were used as solvents in the [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) electron transport layer (ETL) of perovskite solar cells (PSCs). This study observed the effects of various solvents on the surface morphology of the ETL by using an optical microscope (OM) and scanning electron microscope (SEM). The surface roughness, crystal structure, and surface element bonding of the ETL were observed using an atomic force microscope (AFM), X-ray diffractometer (XRD), and X-ray photoelectron spectroscope (XPS), respectively. The absorption spectrum of the perovskite layer was explored using an ultraviolet-visible (UV-Vis) spectrometer. The characteristics of the PSC device were analyzed in terms of its current density–voltage (J–V) curve, external quantum efficiency (EQE), and electrochemical impedance spectroscopy (EIS) measurements. The results showed that DCB is a solvent with a high boiling point, low vapor pressure, and high dielectric constant, and using DCB as the solvent for ETL, the uniformity, coverage, and surface roughness of the ETL showed better properties. The power conversion efficiency of the PSC in which DCB was used as the solvent achieved a value of 11.07%, which was higher than that of the PSCs in which other solvents were used.

scholarly journals Graphene/ZnO nanocomposite as an electron transport layer for perovskite solar cells; the effect of graphene concentration on photovoltaic performance

RSC Advances ◽  
2017 ◽  
Vol 7 (46) ◽  
pp. 28610-28615 ◽  
Author(s):  
P. S. Chandrasekhar ◽  
Vamsi K. Komarala
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Electron Transporting Layer

Perovskite solar cells (PSCs) have been fabricated by a graphene/ZnO nanocomposite (G/ZnO NC) as an electron transporting layer.

scholarly journals Numerical simulation of perovskite solar cell with different material as electron transport layer using SCAPS-1D Software

2021 ◽  
Vol 24 (3) ◽  
pp. 341-347
Author(s):  
K. Bhavsar ◽  
◽  
P.B. Lapsiwala ◽  
Keyword(s):  
Numerical Simulation ◽  
Solar Cells ◽  
Solar Cell ◽  
Electron Transport ◽  
Perovskite Solar Cells ◽  
Acid Methyl Ester ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer

Perovskite solar cells have become a hot topic in the solar energy device area due to high efficiency and low cost photovoltaic technology. However, their function is limited by expensive hole transport material (HTM) and high temperature process electron transport material (ETM) layer is common device structure. Numerical simulation is a crucial technique in deeply understanding the operational mechanisms of solar cells and structure optimization for different devices. In this paper, device modelling for different perovskite solar cell has been performed for different ETM layer, namely: TiO2, ZnO, SnO2, PCBM (phenyl-C61-butyric acid methyl ester), CdZnS, C60, IGZO (indium gallium zinc oxide), WS2 and CdS and effect of band gap upon the power conversion efficiency of device as well as effect of absorber thickness have been examined. The SCAPS 1D (Solar Cell Capacitance Simulator) has been a tool used for numerical simulation of these devices.

scholarly journals High-Performance and Hysteresis-Free Perovskite Solar Cells Based on Rare-Earth-Doped SnO2 Mesoporous Scaffold

Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Qiyao Guo ◽  
Jihuai Wu ◽  
Yuqian Yang ◽  
Xuping Liu ◽  
Zhang Lan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Rare Earth ◽  
Electron Transport ◽  
Charge Transport ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Rare Earth Doping ◽  
Perovskite Layer

Tin oxide (SnO2), as electron transport material to substitute titanium oxide (TiO2) in perovskite solar cells (PSCs), has aroused wide interests. However, the performance of the PSCs based on SnO2 is still hard to compete with the TiO2-based devices. Herein, a novel strategy is designed to enhance the photovoltaic performance and long-term stability of PSCs by integrating rare-earth ions Ln3+ (Sc3+, Y3+, La3+) with SnO2 nanospheres as mesoporous scaffold. The doping of Ln promotes the formation of dense and large-sized perovskite crystals, which facilitate interfacial contact of electron transport layer/perovskite layer and improve charge transport dynamics. Ln dopant optimizes the energy level of perovskite layer, reduces the charge transport resistance, and mitigates the trap state density. As a result, the optimized mesoporous PSC achieves a champion power conversion efficiency (PCE) of 20.63% without hysteresis, while the undoped PSC obtains an efficiency of 19.01%. The investigation demonstrates that the rare-earth doping is low-cost and effective method to improve the photovoltaic performance of SnO2-based PSCs.

scholarly journals Improved photovoltaic performance of triple-cation mixed-halide perovskite solar cells with binary trivalent metals incorporated into the titanium dioxide electron transport layer

2019 ◽  
Vol 7 (17) ◽  
pp. 5028-5036 ◽  
Author(s):  
M. Thambidurai ◽  
Shini Foo ◽  
K. M. Muhammed Salim ◽  
P. C. Harikesh ◽  
Annalisa Bruno ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Solar Cells ◽  
Electron Transport ◽  
Energy Level ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Highly Efficient ◽  
Halide Perovskite

Simultaneous improvement in transparency, conductivity, and energy level alignment was attained via a highly efficient AlIn-TiO2 ETL with the unrivaled PCE of 19%.

Interfacial modification of various alkali metal cations in perovskite solar cells and their influence on photovoltaic performance

2020 ◽  
Vol 44 (21) ◽  
pp. 8902-8909
Author(s):  
Yinyi Huang ◽  
Shina Li ◽  
Chaorong Wu ◽  
Shuo Wang ◽  
Chengyan Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Alkali Metal ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Alkali Metal Cations ◽  
Interfacial Modification ◽  
Perovskite Material

The electron transport layer (ETL) between the perovskite material and cathode plays an important role in planar perovskite solar cells.

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