scholarly journals Investigating the Sequential Deposition Route for Mixed Cation Mixed Halide Wide Bandgap Perovskite Absorber Layer

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8401
Author(s):  
Muneeza Ahmad ◽  
Nadia Shahzad ◽  
Muhammad Ali Tariq ◽  
Abdul Sattar ◽  
Diego Pugliese
Keyword(s):  
Solar Cells ◽  
Spin Coating ◽  
Crystalline Silicon ◽  
High Surface ◽  
Perovskite Solar Cells ◽  
Wide Bandgap ◽  
Absorber Layer ◽  
Morphological Properties ◽  
Sequential Deposition ◽  
Mixed Cation

Wide bandgap (Eg) perovskite solar cells (PSCs) are emerging as the preferred choice for top cells in a tandem architecture with crystalline silicon solar cells. Among the wide bandgap perovskites, a mixed cation mixed halide composition containing CsyFA1-yPbI3−xBrx is a popular choice because the presence of bromine widens the bandgap and addition of cesium stabilizes the crystal structure. These perovskite layers are commonly fabricated using one-step spin coating technique; however, sequential spin coating followed by dip coating has been successful in offering better control over the crystallization process for low bandgap absorber layers. In this paper, the fabrication of a Cs0.2FA0.8PbI3−xBrx perovskite absorber layer using the sequential deposition route is reported. The concentration of bromine was varied in the range 0 ≤ x ≤ 1 and optical, structural, and morphological properties of the films were studied. As the concentration was increased, the perovskite showed better crystallinity and the presence of large grains with high surface roughness, indicating the formation of the CsPbBr3 phase. Optically, the perovskite films exhibited higher absorbance in the ultraviolet (UV) range between 300 and 500 nm, hence up to x = 0.3 they can be profitably employed as a wide bandgap photon absorber layer in solar cell applications.

scholarly journals Efficient Wide-Bandgap Mixed-Cation and Mixed-Halide Perovskite Solar Cells by Vacuum Deposition

2021 ◽  
Vol 6 (2) ◽  
pp. 827-836
Author(s):  
Lidón Gil-Escrig ◽  
Chris Dreessen ◽  
Francisco Palazon ◽  
Zafer Hawash ◽  
Ellen Moons ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Wide Bandgap ◽  
Vacuum Deposition ◽  
Mixed Cation ◽  
Halide Perovskite

scholarly journals 22.8%-Efficient single-crystal mixed-cation inverted perovskite solar cells with a near-optimal bandgap

2021 ◽  
Vol 14 (4) ◽  
pp. 2263-2268
Author(s):  
Abdullah Y. Alsalloum ◽  
Bekir Turedi ◽  
Khulud Almasabi ◽  
Xiaopeng Zheng ◽  
Rounak Naphade ◽  
...  
Keyword(s):  
Solar Cells ◽  
Single Crystal ◽  
Near Infrared ◽  
Perovskite Solar Cells ◽  
Absorber Layer ◽  
Single Junction ◽  
Mixed Cation ◽  
Halide Perovskite ◽  
Lead Halide ◽  
The Ideal

A mixed-cation single-crystal lead-halide perovskite absorber layer was utilized to construct 22.8%-efficient solar cells with an expanded near infrared response that approaches the ideal bandgap range (1.1–1.4 eV) for single-junction solar cells.

A facile approach to improve the performance and stability of perovskite solar cells via FA/MA precursor temperature controlling in sequential deposition fabrication

2021 ◽  
Vol 112 ◽  
pp. 110794
Author(s):  
Mohanad D. Humadi ◽  
Haitham T. Hussein ◽  
Mayada S. Mohamed ◽  
Mustafa K.A. Mohammed ◽  
Ersin Kayahan
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Sequential Deposition

Construction and mechanistic understanding of high-performance all-air-processed perovskite solar cells via mixed-cation engineering

2021 ◽  
Author(s):  
Wenyuan Zhang ◽  
Lang He ◽  
Yuanchao Li ◽  
Dongyan Tang ◽  
Xin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Manufacturing Processes ◽  
Mixed Cation ◽  
Mechanistic Understanding

All-air-processed perovskite solar cells (PSCs) have attracted increasing attention due to low cost and simplified manufacturing processes. At present, to fabricate efficient and stable PSCs in the air is expected....

scholarly journals Efficient wide-bandgap perovskite solar cells enabled by doping a bromine-rich molecule

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Rui He ◽  
Tingting Chen ◽  
Zhipeng Xuan ◽  
Tianzhen Guo ◽  
Jincheng Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Wide Bandgap ◽  
Open Circuit ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Tandem Solar Cells ◽  
Carrier Lifetimes

Abstract Wide-bandgap (wide-E g , ∼1.7 eV or higher) perovskite solar cells (PSCs) have attracted extensive attention due to the great potential of fabricating high-performance perovskite-based tandem solar cells via combining with low-bandgap absorbers, which is considered promising to exceed the Shockley–Queisser efficiency limit. However, inverted wide-E g PSCs with a minimized open-circuit voltage (V oc) loss, which are more suitable to prepare all-perovskite tandem devices, are still lacking study. Here, we report a strategy of adding 1,3,5-tris (bromomethyl) benzene (TBB) into wide-E g perovskite absorber to passivate the perovskite film, leading to an enhanced average V oc. Incorporation of TBB prolongs carrier lifetimes in wide-E g perovskite due to reduction of defects in perovskites and makes a better energy level matching between perovskite absorber and electron transport layer. As a result, we achieve the power conversion efficiency of 17.12% for our inverted TBB-doped PSC with an enhanced V oc of 1.19 V, compared with that (16.14%) for the control one (1.14 V).

FAPbBr3 perovskite solar cells with VOC over 1.5 V by controlled crystal growth using a tetramethylenesulfoxide

2021 ◽  
Author(s):  
Youhei Numata ◽  
Naoyuki Shibayama ◽  
Tsutomu Miyasaka
Keyword(s):  
Solar Cells ◽  
Crystal Growth ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Sequential Deposition ◽  
Lead Bromide

Perovskite solar cells (PSC) capable of open-circuit voltage (VOC) over 1.5 V was fabricated based on a formamidinium lead-bromide (FAPbBr3) perovskite absorber film prepared by sequential deposition procedure using dimethylsulfoxide...

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