scholarly journals A Water-Stable Organic-Inorganic Hybrid Perovskite for Solar Cells by Inorganic Passivation

Crystals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 83 ◽  
Author(s):  
Edward Guangqing Tai ◽  
Ryan Taoran Wang ◽  
Jason Yuanzhe Chen ◽  
Gu Xu
Keyword(s):  
Solar Cells ◽  
Uv Light ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Bandgap Energy ◽  
Lead Iodide ◽  
Perovskite Layer ◽  
Rapid Degradation ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite

Organic-inorganic hybrid halide perovskite solar cells (PSCs) have been a trending topic in recent years. Significant progress has been made to increase their power conversion efficiency (PCE) to more than 20%. However, the poor stability of PSCs in both working and non-working conditions results in rapid degradation through multiple environmental erosions such as water, heat, and UV light. Attempts have been made to resolve the rapid-degradation problems, including formula changes, transport layer improvements, and encapsulations, but none of these have effectively resolved the dilemma. This paper reports our findings on adding inorganic films as surface-passivation layers on top of the hybrid perovskite materials, which not only enhance stability by eliminating weak sites but also prevent water penetration by using a water-stable layer. The surface-passivated hybrid perovskite layer indicates a slight increase of bandgap energy (Eg=1.76 eV), compared to the original methylammonium lead iodide (MAPbI3, Eg=1.61 eV) layer, allowing for more stable perovskite layer with a small sacrifice in the photoluminescence property, which represents a lower charge diffusion rate and higher bandgap energy. Our finding offers an alternative approach to resolving the low stability issue for PSC fabrication.

scholarly journals Composited Film of Poly(3,4-ethylenedioxythiophene) and Graphene Oxide as Hole Transport Layer in Perovskite Solar Cells

Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3895
Author(s):  
Tian Yuan ◽  
Jin Li ◽  
Shimin Wang
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Perovskite Layer ◽  
Hybrid Perovskite ◽  
Polystyrene Sulfonic Acid ◽  
The Cost

It is important to lower the cost and stability of the organic–inorganic hybrid perovskite solar cells (PSCs) for industrial application. The commonly used hole transport materials (HTMs) such as Spiro-OMeTAD, poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) and poly(3-hexylthiophene-2,5-diyl) (P3HT) are very expensive. Here, 3,4-ethylenedioxythiophene (EDOT) monomers are in-situ polymerized on the surface of graphene oxide (GO) as PEDOT-GO film. Compared to frequently used polystyrene sulfonic acid (PSS), GO avoids the corrosion of the perovskite and the use of H2O solvent. The composite PEDOT-GO film is between carbon pair electrode and perovskite layer as hole transport layer (HTL). The highest power conversion efficiency (PCE) is 14.09%.

Nickel oxide nanoparticles for efficient hole transport in p-i-n and n-i-p perovskite solar cells

2017 ◽  
Vol 5 (14) ◽  
pp. 6597-6605 ◽  
Author(s):  
Zonghao Liu ◽  
Aili Zhu ◽  
Fensha Cai ◽  
LeiMing Tao ◽  
Yinhua Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Nickel Oxide ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Nickel Oxide Nanoparticles ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite ◽  
Temperature Solution

Here, a low-temperature solution-processed nickel oxide (NiOx) thin film was first employed as a hole transport layer in both inverted (p-i-n) planar and regular (n-i-p) mesoscopic organic–inorganic hybrid perovskite solar cells (PVSCs).

scholarly journals Enhancement of thermal stability for perovskite solar cells through cesium doping

RSC Advances ◽  
2017 ◽  
Vol 7 (28) ◽  
pp. 17473-17479 ◽  
Author(s):  
Guangda Niu ◽  
Wenzhe Li ◽  
Jiangwei Li ◽  
Xingyao Liang ◽  
Liduo Wang
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Electric Field ◽  
Uv Light ◽  
Perovskite Solar Cells ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite

Organic–inorganic hybrid perovskite solar cells are found to be sensitive to moisture, oxygen, UV light, light soaking, heat, electric field, etc.

Effects of organic inorganic hybrid perovskite materials on the electronic properties and morphology of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) and the photovoltaic performance of planar perovskite solar cells

2015 ◽  
Vol 3 (31) ◽  
pp. 15897-15904 ◽  
Author(s):  
Yijie Xia ◽  
Kuan Sun ◽  
Jingjing Chang ◽  
Jianyong Ouyang
Keyword(s):  
Solar Cells ◽  
Electronic Properties ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Perovskite Layer ◽  
Inorganic Hybrid ◽  
Perovskite Materials ◽  
Hybrid Perovskite

The deposition of a perovskite layer from its precursor solution can saliently enhance the conductivity of PEDOT:PSS.

scholarly journals Effect of SnO2 Colloidal Dispersion Solution Concentration on the Quality of Perovskite Layer of Solar Cells

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 591
Author(s):  
Keke Song ◽  
Xiaoping Zou ◽  
Huiyin Zhang ◽  
Chunqian Zhang ◽  
Jin Cheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Efficiency ◽  
Surface Condition ◽  
Perovskite Solar Cells ◽  
Colloidal Dispersion ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Perovskite Layer ◽  
Dispersion Solution

The electron transport layer (ETL) is critical to carrier extraction for perovskite solar cells (PSCs). Moreover, the morphology and surface condition of the ETL could influence the topography of the perovskite layer. ZnO, TiO2, and SnO2 were widely investigated as ETL materials. However, TiO2 requires a sintering process under high temperature and ZnO has the trouble of chemical instability. SnO2 possesses the advantages of low-temperature fabrication and high conductivity, which is critical to the performance of PSCs prepared under low temperature. Here, we optimized the morphology and property of SnO2 by modulating the concentration of a SnO2 colloidal dispersion solution. When adjusting the concentration of SnO2 colloidal dispersion solution to 5 wt.% (in water), SnO2 film indicated better performance and the perovskite film has a large grain size and smooth surface. Based on high efficiency (16.82%), the device keeps a low hysteresis index (0.23).

Laser Crystallization of Organic–Inorganic Hybrid Perovskite Solar Cells

ACS Nano ◽  
2016 ◽  
Vol 10 (8) ◽  
pp. 7907-7914 ◽  
Author(s):  
Taewoo Jeon ◽  
Hyeong Min Jin ◽  
Seung Hyun Lee ◽  
Ju Min Lee ◽  
Hyung Il Park ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Laser Crystallization ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite

Strategies of modifying spiro-OMeTAD materials for perovskite solar cells: A review

2021 ◽  
Author(s):  
Wenbin Guo ◽  
Guanhua Ren ◽  
Wenbin Han ◽  
Yanyu Deng ◽  
Wei Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Hybrid ◽  
The Past ◽  
Hybrid Perovskite

Organic-inorganic hybrid perovskite solar cells (PSCs) have made unprecedented progress in the past ten years, the power conversion efficiency of which increased from 3.8% in 2009 to 25.5% in 2019....

Self-Doped Conducting Polymer as a Hole-Extraction Layer in Organic-Inorganic Hybrid Perovskite Solar Cells

2016 ◽  
Vol 3 (9) ◽  
pp. 1500678 ◽  
Author(s):  
Kyung-Geun Lim ◽  
Soyeong Ahn ◽  
Hobeom Kim ◽  
Mi-Ri Choi ◽  
Dal Ho Huh ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conducting Polymer ◽  
Perovskite Solar Cells ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite

scholarly journals CuI/Spiro-OMeTAD Double-Layer Hole Transport Layer to Improve Photovoltaic Performance of Perovskite Solar Cells

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 978
Author(s):  
Chaoqun Lu ◽  
Weijia Zhang ◽  
Zhaoyi Jiang ◽  
Yulong Zhang ◽  
Cong Ni
Keyword(s):  
Solar Cells ◽  
Double Layer ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Photoelectric Conversion Efficiency ◽  
Photoelectric Conversion ◽  
Perovskite Layer

The hole transport layer (HTL) is one of the main factors affecting the efficiency and stability of perovskite solar cells (PSCs). However, obtaining HTLs with the desired properties through current preparation techniques remains a challenge. In the present study, we propose a new method which can be used to achieve a double-layer HTL, by inserting a CuI layer between the perovskite layer and Spiro-OMeTAD layer via a solution spin coating process. The CuI layer deposited on the surface of the perovskite film directly covers the rough perovskite surface, covering the surface defects of the perovskite, while a layer of CuI film avoids the defects caused by Spiro-OMetad pinholes. The double-layer HTLs improve roughness and reduce charge recombination of the Spiro-OMeTAD layer, thereby resulting in superior hole extraction capabilities and faster hole mobility. The CuI/Spiro-OMeTAD double-layer HTLs-based devices were prepared in N2 gloveboxes and obtained an optimized PCE (photoelectric conversion efficiency) of 17.44%. Furthermore, their stability was improved due to the barrier effect of the inorganic CuI layer on the entry of air and moisture into the perovskite layer. The results demonstrate that another deposited CuI film is a promising method for realizing high-performance and air-stable PSCs.

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