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 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 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.

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 Abnormal spatial heterogeneity governing charge-carrier mechanism in efficient Ruddlesden-Popper perovskite solar cells

2021 ◽  
Author(s):  
Jun Xi ◽  
Junseop Byeon ◽  
Unsoo Kim ◽  
Kijoon Bang ◽  
Gi Rim Han ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Spatial Heterogeneity ◽  
Real Time ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Carrier Mechanism

Layered Ruddlesden–Popper perovskite (RPP) photovoltaics have gained substantial attention owing to their excellent air stability. However, their photovoltaic performance is still limited by the unclear real-time charge-carrier mechanism of operating...

scholarly journals Effects of CsSnxPb1−xI3 Quantum Dots as Interfacial Layer on Photovoltaic Performance of Carbon-Based Perovskite Solar Cells

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Chi Zhang ◽  
Zhiyuan He ◽  
Xuanhui Luo ◽  
Rangwei Meng ◽  
Mengwei Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Photogenerated Electron ◽  
Depletion Region ◽  
Band Alignment ◽  
Back Surface ◽  
The One ◽  
Carbon Based

AbstractIn this work, inorganic tin-doped perovskite quantum dots (PQDs) are incorporated into carbon-based perovskite solar cells (PSCs) to improve their photovoltaic performance. On the one hand, by controlling the content of Sn2+ doping, the energy level of the tin-doped PQDs can be adjusted, to realize optimized band alignment and enhanced separation of photogenerated electron–hole pairs. On the other hand, the incorporation of tin-doped PQDs provided with a relatively high acceptor concentration due to the self-p-type doping effect is able to reduce the width of the depletion region near the back surface of the perovskite, thereby enhancing the hole extraction. Particularly, after the addition of CsSn0.2Pb0.8I3 quantum dots (QDs), improvement of the power conversion efficiency (PCE) from 12.80 to 14.22% can be obtained, in comparison with the pristine device. Moreover, the experimental results are analyzed through the simulation of the one-dimensional perovskite/tin-doped PQDs heterojunction.

Near Field Control for Enhanced Photovoltaic Performance and Photostability in Perovskite Solar Cells

Nano Energy ◽  
2021 ◽  
pp. 106388
Author(s):  
Mohammad Ismail Hossain ◽  
Md. Shahiduzzaman ◽  
Safayet Ahmed ◽  
Md. Rashedul Huqe ◽  
Wayesh Qarony ◽  
...  
Keyword(s):  
Solar Cells ◽  
Near Field ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Field Control

Improvement of photovoltaic performance of perovskite solar cells with a ZnO/Zn2SnO4 composite compact layer

2017 ◽  
Vol 159 ◽  
pp. 143-150 ◽  
Author(s):  
Weixin Li ◽  
Qinghui Jiang ◽  
Junyou Yang ◽  
Yubo Luo ◽  
Xin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Compact Layer
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