Theoretical impacts of single band gap grading of perovskite and valence band offset of perovskite/hole transport layer interface on its solar cell performances

Solar Energy ◽  
2022 ◽  
Vol 231 ◽  
pp. 684-693
Author(s):  
Yu Kawano ◽  
Jakapan Chantana ◽  
Takayuki Negami ◽  
Takahito Nishimura ◽  
Abdurashid Mavlonov ◽  
...  
Keyword(s):  
Solar Cell ◽  
Band Gap ◽  
Valence Band ◽  
Hole Transport ◽  
Single Band ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Band Offset ◽  
Valence Band Offset ◽  
Layer Interface

Chalcogenide As Inorganic Transport Layer in Perovskite Solar Cell

2021 ◽  
Author(s):  
Atul kumar
Keyword(s):  
Solar Cell ◽  
Fill Factor ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Band Alignment ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Band Offset ◽  
Primary Concern ◽  
Earth Abundant

Abstract Fill factor (FF) deficit and stability is a primary concern with the perovskite solar cell. Resistance values and band alignment at junction interface in perovskite are causing low fill factor. Moisture sensitivity of methylammonium lead halide perovskite is causing a stability issue. We tried to solve these issues by using inorganic hole transport layer (HTL). FF is sensitive to the band offset values. We study the band alignment/band offset effect at the Perovskite /HTL junction. Inorganic material replacing Spiro-MeOTAD can enhance the stability of the device by providing an insulation from ambient. Our simulation study shows that the earth abundant p-type chalcogenide materials of SnS as HTL in perovskite is comparable to Spiro-MeOTAD efficiency.

scholarly journals Dibenzo-Tetraphenyl Diindeno as Hole Transport Layer for Perovskite Solar Cells Fabrication

2020 ◽  
Author(s):  
Meenakshi Pegu ◽  
Laura Calio ◽  
Mehrad Ahmadpour ◽  
Horst-Günter Rubahn ◽  
Samrana Kazim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Band Gap ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Promising Alternative ◽  
Building Integrated Photovoltaics ◽  
Polycyclic Aromatic

<p>Semi-transparent perovskite solar cells have the competitive edge of being employed for building integrated photovoltaics due to their aesthetic benefits as light harvesting windows / facades. Perovskites have received considerable attention in recent years as a thin film photovoltaic alternative, that can also be tweaked for its transparency, evolving from potentially high bandgaps that are suited for semi-transparent solar cell fabrication. Due to the existing trade of between the efficiency and transparency of a perovskite solar cell, tuning the band gap can address this by making a bridge between the aforementioned parameters. We report our findings on the use of a wide-bandgap perovskite MAPbBr<sub>3</sub>, with a rational energetic level hole transport materials based on polycyclic aromatic hydrocarbon molecules that can be a promising alternative class of p-type material. In the present work, DBP (Dibenzo{[f,f' ]-4,4',7,7'-tetraphenyl}diindeno[1,2,3-cd :1',2',3'-lm]perylene, was evaluated with high band gap as well as with (FAPbI<sub>3</sub>)<sub>0.85</sub>(MAPbBr<sub>3</sub>)<sub>0.15 </sub>perovskites<sub> </sub>for the fabrication of solar cell. DBP based solar cells yielded competitive power conversion efficiencies as compared to classical HTMs.</p>

scholarly journals Dibenzo-Tetraphenyl Diindeno as Hole Transport Layer for Perovskite Solar Cells Fabrication

2020 ◽  
Author(s):  
Meenakshi Pegu ◽  
Laura Calio ◽  
Mehrad Ahmadpour ◽  
Horst-Günter Rubahn ◽  
Samrana Kazim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Band Gap ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Promising Alternative ◽  
Building Integrated Photovoltaics ◽  
Polycyclic Aromatic

<p>Semi-transparent perovskite solar cells have the competitive edge of being employed for building integrated photovoltaics due to their aesthetic benefits as light harvesting windows / facades. Perovskites have received considerable attention in recent years as a thin film photovoltaic alternative, that can also be tweaked for its transparency, evolving from potentially high bandgaps that are suited for semi-transparent solar cell fabrication. Due to the existing trade of between the efficiency and transparency of a perovskite solar cell, tuning the band gap can address this by making a bridge between the aforementioned parameters. We report our findings on the use of a wide-bandgap perovskite MAPbBr<sub>3</sub>, with a rational energetic level hole transport materials based on polycyclic aromatic hydrocarbon molecules that can be a promising alternative class of p-type material. In the present work, DBP (Dibenzo{[f,f' ]-4,4',7,7'-tetraphenyl}diindeno[1,2,3-cd :1',2',3'-lm]perylene, was evaluated with high band gap as well as with (FAPbI<sub>3</sub>)<sub>0.85</sub>(MAPbBr<sub>3</sub>)<sub>0.15 </sub>perovskites<sub> </sub>for the fabrication of solar cell. DBP based solar cells yielded competitive power conversion efficiencies as compared to classical HTMs.</p>

Performance investigation of Sb2Se3 based solar cell by device optimization, band offset engineering and Hole Transport Layer in SCAPS-1D

2020 ◽  
Vol 20 (8) ◽  
pp. 973-981
Author(s):  
Faisal Baig ◽  
Yousaf Hameed Khattak ◽  
Ahmed Shuja ◽  
Kashif Riaz ◽  
Bernabé Marí Soucase
Keyword(s):  
Solar Cell ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Band Offset ◽  
Device Optimization

scholarly journals Performance Comparison of Different Hole Transport Layer Configurations in a Perovskite-based Solar Cell using SCAPS-1D Simulation

2021 ◽  
Author(s):  
Seyyedreza HOSSEİNİ ◽  
Nagihan DELİBAŞ ◽  
Mahsa BAHRAMGOUR ◽  
Alireza TABATABAEİ MASHAYEKH ◽  
Aligholi NİAİE
Keyword(s):  
Solar Cell ◽  
Performance Comparison ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

scholarly journals Energy Level Engineering of Charge Selective Contact and Halide Perovskite by Modulating Band Offset: Mechanistic Insights

2020 ◽  
Author(s):  
Yassine Raoui ◽  
Hamid Ez-Zahraouy ◽  
Samrana Kazim ◽  
Shahzada Ahmad
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Conduction Band ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Conduction Band Minimum ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Band Offset ◽  
Interfacial Recombination

<p>Mixed cation and anion based perovskites solar cells (FAPbI<sub>3</sub>)<sub>0.85</sub>(MAPbBr<sub>3</sub>)<sub>0.15</sub> gave enhanced stability under outdoor conditions, however, it yielded limited power conversion efficiency when SnO<sub>2</sub> and Spiro-OMeTAD were employed as electron and hole transport layer (ETL/HTL). The inevitable interfacial recombination of charge carriers at ETL/perovskite and perovskite/HTL interface diminished the efficiency in planar (n-i-p) perovskite solar cells. Employing computational approach for uni-dimensional device simulator, the effect of band offset on charge recombination at both interfaces were investigated. We noted that it acquired cliff structure when the conduction band minimum of the ETL is lower than that of the perovskite, and thus maximizes interfacial recombination. However, if the conduction band minimum of ETL is higher than perovskite, i.e. spike structure is formed, which improve the performance of solar cell up to an optimum value of conduction band offset allowing to reach performance of 25.21%, with an open circuit voltage (<i>V</i><sub>oc</sub>) of 1231 mV, a current density <i>J</i><sub>sc</sub> of 24.57 mA/cm<sup>2</sup> and a fill factor of 83.28%. Additionally, we found that beyond the optimum offset value, large spike structure could decrease the performance. With an optimized, energy level of Spiro-OMeTAD and the thickness of mixed-perovskite layer performance of 26.56 % can be attained. Our results demonstrate a detailed understanding about the energy level tuning between the charge selective layers and perovskite and furthermore how the improvement in PV performance can be achieved by adjusting the energy level offset.</p>

scholarly journals Hole Transport Behaviour of Various Polymers and Their Application to Perovskite-Sensitized Solid-State Solar Cells

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Jeongmin Lim ◽  
Seong Young Kong ◽  
Yong Ju Yun
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solid State ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Good Efficiency ◽  
Promising Alternative ◽  
Transport Behaviour

Inorganic-organic mesoscopic solar cells become a promising alternative for conventional solar cells. We describe a CH3NH3PbI3 perovskite-sensitized solid-state solar cells with the use of different polymer hole transport materials such as 2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenyl-amine)-9,9′-spirobifluorene (spiro-OMeTAD), poly(3-hexylthiophene-2,5-diyl) (P3HT), and poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]] (PTB7). The device with a spiro-OMeTAD-based hole transport layer showed the highest efficiency of 6.9%. Interestingly, the PTB7 polymer, which is considered an electron donor material, showed dominant hole transport behaviors in the perovskite solar cell. A 200 nm thin layer of PTB7 showed comparatively good efficiency (5.5%) value to the conventional spiro-OMeTAD-based device.

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