scholarly journals The Progress of Additive Engineering for CH3NH3PbI3 Photo-Active Layer in the Context of Perovskite Solar Cells

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 814
Author(s):  
Mayuribala Mangrulkar ◽  
Keith J. Stevenson
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Optoelectronic Properties ◽  
Organic Additives ◽  
Absorbing Material ◽  
Wide Scale ◽  
Absorbing Layer ◽  
Materials Used ◽  
Additive Influence

Methylammonium lead triiodide (CH3NH3PbI3/MAPbI3) is the most intensively explored perovskite light-absorbing material for hybrid organic–inorganic perovskite photovoltaics due to its unique optoelectronic properties and advantages. This includes tunable bandgap, a higher absorption coefficient than conventional materials used in photovoltaics, ease of manufacturing due to solution processability, and low fabrication costs. In addition, the MAPbI3 absorber layer provides one of the highest open-circuit voltages (Voc), low Voc loss/deficit, and low exciton binding energy, resulting in better charge transport with decent charge carrier mobilities and long diffusion lengths of charge carriers, making it a suitable candidate for photovoltaic applications. Unfortunately, MAPbI3 suffers from poor photochemical stability, which is the main problem to commercialize MAPbI3-based perovskite solar cells (PSCs). However, researchers frequently adopt additive engineering to overcome the issue of poor stability. Therefore, in this review, we have classified additives as organic and inorganic additives. Organic additives are subclassified based on functional groups associated with N/O/S donor atoms; whereas, inorganic additives are subcategorized as metals and non-metal halide salts. Further, we discussed their role and mechanism in terms of improving the performance and stability of MAPbI3-based PSCs. In addition, we scrutinized the additive influence on the morphology and optoelectronic properties to gain a deeper understanding of the crosslinking mechanism into the MAPbI3 framework. Our review aims to help the research community, by providing a glance of the advancement in additive engineering for the MAPbI3 light-absorbing layer, so that new additives can be designed and experimented with to overcome stability challenges. This, in turn, might pave the way for wide scale commercial use.

scholarly journals 1D Perovskitoid as Absorbing Material for Stable Solar Cells

Crystals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 241
Author(s):  
Fan Xu ◽  
Yujing Li ◽  
Na Liu ◽  
Ying Han ◽  
Meishuai Zou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Hydrogen Bonds ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
One Dimensional ◽  
Absorbing Material ◽  
Absorbing Layer ◽  
Device Lifetime ◽  
Stability Measurements

The instabilities of perovskite solar cells hinder their commercialisation. To resolve this problem, a one-dimensional (1D) perovskitoid, PyPbI3, was fabricated, and its structure and photovoltaic performance were investigated in this work. XPS and FTIR results suggest hydrogen bonds existed in the 1D hexagonal PyPbI3. Stability measurements indicate that 1D perovskitoid is much more stable than the commonly employed FA-based perovskite. In addition, solar cells adopting PyPbI3 as an absorbing layer led to a device lifetime of one month. Our results suggest that 1D perovskitoid has great potential to be employed in solar cells.

scholarly journals High Mobility Reactive Sputtered CuxO Thin Film for Highly Efficient and Stable Perovskite Solar Cells

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 389
Author(s):  
Mohammad Aminul Islam ◽  
Yasmin Abdu Wahab ◽  
Mayeen Uddin Khandaker ◽  
Abdullah Alsubaie ◽  
Abdulraheem SA Almalki ◽  
...  
Keyword(s):  
Solar Cells ◽  
Thermal Annealing ◽  
Measurement Techniques ◽  
Perovskite Solar Cells ◽  
High Mobility ◽  
Open Circuit ◽  
Optoelectronic Properties ◽  
Type Conductivity ◽  
Vis Spectroscopy ◽  
P Type

Copper oxide (CuxO) films are considered to be an attractive hole-transporting material (HTM) in the inverted planar heterojunction perovskite solar cells due to their unique optoelectronic properties, including intrinsic p-type conductivity, high mobility, low-thermal emittance, and energy band level matching with the perovskite (PS) material. In this study, the potential of reactive sputtered CuxO thin films with a thickness of around 100 nm has been extensively investigated as a promising HTM for effective and stable perovskite solar cells. The as-deposited and annealed films have been characterized by using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Photoluminescence (PL), UV-Vis spectroscopy, and Hall-effect measurement techniques. The significant change in structural and optoelectronic properties has been observed as an impact of the thermal annealing process. The phase conversion from Cu2O to CuO, including grain size increment, was observed upon thermal annealing. The transmittance and optical bandgap were found to vary with the films’ crystallographic transformation. The predominant p-type conductivity and optimum annealing time for higher mobility have been confirmed from the Hall measurement. Films’ optoelectrical properties were implemented in the complete perovskite solar cell for numerical analysis. The simulation results show that a 40 min annealed CuxO film yields the highest efficiency of 22.56% with a maximum open-circuit voltage of 1.06 V.

scholarly journals 2D Organic-Inorganic Hybrid Perovskite Light-Absorbing Layer in Solar Cells

2020 ◽  
Author(s):  
Meng Wang ◽  
Qunliang Song ◽  
Sam Zhang
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Photophysical Properties ◽  
Rapid Development ◽  
Perovskite Solar Cells ◽  
Photovoltaic Devices ◽  
Hybrid Perovskite ◽  
Absorbing Material ◽  
Absorbing Layer

With the rapid development of high-performance perovskite solar cell, its instability has become an urgent problem to be solved. 2D perovskite is considered as a potential light absorbing material for perovskite solar cells due to its excellent stability. However, the preparation of high quality 2D perovskite films suitable for photovoltaic devices remains a challenge. In this chapter, based on the structural and photophysical properties of 2D perovskite thin film materials, the latest progress in 2D perovskite cells in recent years and the strategy of controlling the film quality of 2D perovskite are summarized, which is of great significance for the further development of 2D perovskite photovoltaic devices.

Reducing recombination and enhancing open circuit voltage by Strontium-alloying in multiple cation perovskite solar cells

2017 ◽  
Author(s):  
Pietro Caprioglio ◽  
Fengshuo Zu ◽  
Christian M. Wolff ◽  
Martin Stolterfhot ◽  
Norbert Koch ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit

scholarly journals Spray‐coated lead‐free Cs 2 AgBiBr 6 double perovskite solar cells with high open‐circuit voltage

Solar RRL ◽  
2021 ◽  
Author(s):  
Nathan Daem ◽  
Jennifer Dewalque ◽  
Felix Lang ◽  
Anthony Maho ◽  
Gilles Spronck ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Double Perovskite ◽  
Open Circuit ◽  
Lead Free

scholarly journals On the Relation between the Open‐Circuit Voltage and Quasi‐Fermi Level Splitting in Efficient Perovskite Solar Cells

2019 ◽  
Vol 9 (33) ◽  
pp. 1901631 ◽  
Author(s):  
Pietro Caprioglio ◽  
Martin Stolterfoht ◽  
Christian M. Wolff ◽  
Thomas Unold ◽  
Bernd Rech ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fermi Level ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Quasi Fermi Level ◽  
Level Splitting

scholarly journals Use of Sodium Diethyldithiocarbamate to Enhance the Open‐Circuit Voltage of CH 3 NH 3 PbI 3 Perovskite Solar Cells

Solar RRL ◽  
2021 ◽  
pp. 2000811
Author(s):  
Miriam Más-Montoya ◽  
David Curiel ◽  
Junke Wang ◽  
Bardo J. Bruijnaers ◽  
René A. J. Janssen
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Sodium Diethyldithiocarbamate
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