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.

Enhancing efficiency and stability of perovskite solar cells via a high mobility p-type PbS buffer layer

Nano Energy ◽  
2017 ◽  
Vol 38 ◽  
pp. 1-11 ◽  
Author(s):  
Xiaolu Zheng ◽  
Hongwei Lei ◽  
Guang Yang ◽  
Weijun Ke ◽  
Zhiliang Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Buffer Layer ◽  
Perovskite Solar Cells ◽  
High Mobility ◽  
P Type

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.

Visualizing and Suppressing Nonradiative Losses in High Open-Circuit Voltage n-i-p-Type CsPbI3 Perovskite Solar Cells

2019 ◽  
Vol 5 (1) ◽  
pp. 271-279 ◽  
Author(s):  
Wei Meng ◽  
Yi Hou ◽  
André Karl ◽  
Ening Gu ◽  
Xiaofeng Tang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
P Type

scholarly journals Copper Iodide Interlayer for Improved Charge Extraction and Stability of Inverted Perovskite Solar Cells

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1406 ◽  
Author(s):  
Danila Saranin ◽  
Pavel Gostischev ◽  
Dmitry Tatarinov ◽  
Inga Ermanova ◽  
Vsevolod Mazov ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Passivation ◽  
Perovskite Solar Cells ◽  
High Mobility ◽  
Open Circuit ◽  
Hole Transport ◽  
Band Alignment ◽  
Hole Injection ◽  
Copper Iodide ◽  
Shunt Resistance

Nickel oxide (NiO) is one of the most promising and high-performing Hole Transporting Layer (HTL) in inverted perovskite solar cells due to ideal band alignment with perovskite absorber, wide band gap, and high mobility of charges. At the same time, however, NiO does not provide good contact and trap-free junction for hole collection. In this paper, we examine this problem by developing a double hole transport configuration with a copper iodide (CuI) interlayer for efficient surface passivation. Transient photo-current (TPC) measurements showed that Perovskite/HTL interface with CuI interlayer has an improved hole injection; CuI passivation reduces the concentration of traps and the parasitic charge accumulation that limits the flow of charges. Moreover, we found that CuI protect the HTL/perovskite interface from degradation and consequently improve the stability of the cell. The presence of CuI interlayer induces an improvement of open-circuit voltage VOC (from 1.02 V to 1.07 V), an increase of the shunt resistance RSH (100%), a reduction of the series resistance RS (−30%), and finally a +10% improvement of the solar cell efficiency.

scholarly journals High-Mobility p-Type Organic Semiconducting Interlayer Enhancing Efficiency and Stability of Perovskite Solar Cells

2017 ◽  
Vol 4 (9) ◽  
pp. 1700025 ◽  
Author(s):  
Mingyu Zhang ◽  
Jiayu Wang ◽  
Liang Li ◽  
Guanhaojie Zheng ◽  
Kuan Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
High Mobility ◽  
P Type

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

Fused Dithienopicenocarbazole Enabling High Mobility Dopant-Free Hole-Transporting Polymers for Efficient and Stable Perovskite Solar Cells

2021 ◽  
Vol 13 (5) ◽  
pp. 6688-6698
Author(s):  
Zilong Zhang ◽  
Lusheng Liang ◽  
Longhui Deng ◽  
Lu Ren ◽  
Nan Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
High Mobility ◽  
Free Hole ◽  
Hole Transporting
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