Sputtered indium zinc oxide rear electrodes for inverted semitransparent perovskite solar cells without using a protective buffer layer

Wahl, Tina; Hanisch, Jonas; Meier, Sven; Schultes, Moritz; Ahlswede, Erik

doi:10.1016/j.orgel.2017.12.020

Cited by 42 publications

(27 citation statements)

References 28 publications

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“…However, the optical simulation indicated that thicker ITO layers give rise to significant parasitic absorption, whereas thinner layers result in a reduced fill factor (FF) due to high series resistance . Another route is using new transparent conducting oxides with lower carrier‐concentration and large carrier mobility, such as indium zinc oxide (IZO) . Due to its optimal electro‐optical properties, IZO has been demonstrated as an efficient intermediate contact.…”

Section: Perovskite Tandem Progressmentioning

confidence: 99%

Two‐Terminal Perovskites Tandem Solar Cells: Recent Advances and Perspectives

Song

Chen

et al. 2019

Solar RRL

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Metal halide perovskite‐based solar cells have achieved rapidly increasing efficiencies of up to 23.7%. However, it is still far away from the Shockley–Quiesser limit of 33.16%. Tandem solar cells, consisting of two subcells with complementary absorption, are suggested as an alternative to beat this limit due to the fact that a maximum efficiency of 42% can be reached using two subcells with bandgaps of 1.9 eV/1.0 eV, opening up a great potential to develop perovskite‐based tandem solar cells. In this review, the current status of and recent advances in perovskite‐based tandem solar cells are highlighted, including perovskite–silicon, perovskite–perovskite, and perovskite–copper indium gallium selenide (CIGS) integrations. Different configurations, key issues regarding the photoelectric properties, present efficiency limitations, and material design are discussed. The critical role of perovskite bandgap optimization, interface engineering, and recombination layers are also analyzed to outline the roadmaps for future investigation. The current challenging issues and future perspectives are also provided. It is hoped that the findings will provide new perspectives for perovskite‐based tandem solar cells with an unprecedented performance and the opportunity for commercialization.

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Section: Perovskite Tandem Progressmentioning

confidence: 99%

Two‐Terminal Perovskites Tandem Solar Cells: Recent Advances and Perspectives

Song

Chen

et al. 2019

Solar RRL

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Section: Caesium‐doping In Other Perovskite Solar Cell Componentsmentioning

confidence: 99%

“…To solve these issues, in 2014 Figure 1. The crystalline structures of A) 2D and B, C) 3D perovskites; D) Schematic illustrations of (110), (002), ( 112) and (200) crystal planes from ap erpendicular view,f or perovskites composedo f( MAPbI 3 ) 1Àx (CsPbBr 3 ) x with x ranging from 0t o0 .2.Adapted and reprinted with permission. [97,116] of Cs-doping by replacing the organic cation in the MAPbI 3 structurew ith an inorganic cation.…”

Section: Caesium-doping In Hybrid Perovskitesmentioning

confidence: 99%

“…Among the different PSC device architectures, inverted planar structure is attracting increasing attention due to its low hysteresis, easy setup, and possibility of low temperature processing. [199][200][201] One of the key issues in this scenario is the performance improvement of HTM in terms of conductivity. Indeed, low conductivity values resulti ni ncreased recombination phenomena and reduced hole extraction; [202] this drawback can be avoided by either adjusting the stoichiometry of 1mm);B )J-V characteristic curves of as eries of cells in the "sandwich" configuration with different composition of Cs 2 SnI 6Àx Br x (inset:I PCE valuesf or Cs 2 SnI 6 -blackand Cs 2 SnBr 2 I 4 -green); C) Stability curveso fC s 2 SnI 6 (black) and Cs 2 SnBr 2 I 4 (green)based solar cells upon 50 days aging undera ir.A dapted and reprinted with permission.…”

Section: Caesium-doping In Other Perovskite Solar Cell Componentsmentioning

confidence: 99%

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Caesium for Perovskite Solar Cells: An Overview

Bella

Renzi

Cavallo

et al. 2018

Chemistry A European J

150

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Perovskite solar cells have the potential to revolutionize the world of photovoltaics, and their efficiency close to 23 % on a lab-scale recently certified this novel technology as the one with the most rapidly raising performance per year in the whole story of solar cells. With the aim of improving stability, reproducibility and spectral properties of the devices, in the last three years the scientific community strongly focused on Cs-doping for hybrid (typically, organolead) perovskites. In parallel, to further contrast hygroscopicity and reach thermal stability, research has also been carried out to achieve the development of all-inorganic perovskites based on caesium, the performances of which are rapidly increasing. The potential of caesium is further strengthened when it is used as a modifying agent of charge-carrier layers in solar cells, but also for the preparation of perovskites with peculiar optoelectronic properties for unconventional applications (e.g., in LEDs, photodetectors, sensors, etc.). This Review offers a 360-degree overview on how caesium can strongly tune the properties and performance of perovskites and relative perovskite-based devices.

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“…However, the efficiencies obtained remained not too high for semitransparent PSC (14.4% for 0.13 cm 2 devices and 12% for 4 cm 2 ones), with a significant reduction of J SC during upscaling. Wahl et al ., proposed indium zinc oxide (IZO), as semitransparent rear contact deposited onto bathocuproine/[6,6]-Phenyl-C 61 -butyric acid methyl ester (BCP/PCBM) with an inverted semitransparent PSC configuration improving the transmission in the infrared part of the spectra (800–1300 nm) and getting 13.3% also using a DC system 25 . Although the employment of RF magnetron sputtering for the fabrication of buffer layer-free semitransparent PSCs remained unexplored, RF technique has been widely reported in PSCs not only to grow different carrier transport layers such as TiO 2 26 or SnO 2 27 , but also to prepare a PbS that can be easily transformed into PbI 2 for the fabrication of the perovskite layer 28 .…”

Section: Introductionmentioning

confidence: 99%

Highly efficient MoOx-free semitransparent perovskite cell for 4 T tandem application improving the efficiency of commercially-available Al-BSF silicon

Ramos¹,

Jutteau²,

Posada³

et al. 2018

Sci Rep

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In this work, the fabrication of MoOx-free semitransparent perovskite solar cells (PSC) with Power Conversion Efficiencies (PCE) up to 15.7% is reported. Firstly, opaque PSCs up to 19.7% were fabricated. Then, the rear metal contact was replaced by a highly transparent and conductive indium tin oxide (ITO) film, directly sputtered onto the hole selective layer, without any protective layer between Spiro-OMeTAD and rear ITO. To the best of our knowledge, this corresponds to the most efficient buffer layer-free semitransparent PSC ever reported. Using time-resolved photoluminescence (TRPL) technique on both sides of the semitransparent PSC, Spiro-OMeTAD/perovskite and perovskite/TiO2 interfaces were compared, confirming the great quality of Spiro-OMeTAD/perovskite interface, even after damage-less ITO sputtering, where degradation phenomena result less important than for perovskite/TiO2 one. Finally, a 4-terminal tandem was built combining semitransparent PSC with a commercially-available Aluminium Back Surface Field (Al-BSF) silicon wafer. That silicon wafer presents PCE = 19.52% (18.53% after being reduced to cell size), and 5.75% once filtered, to generate an overall 4 T tandem efficiency of 21.18% in combination with our champion large semitransparent PSC of 15.43%. It means an absolute increase of 1.66% over the original silicon wafer efficiency and a 2.65% over the cut Si cell.

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Sputtered indium zinc oxide rear electrodes for inverted semitransparent perovskite solar cells without using a protective buffer layer

Cited by 42 publications

References 28 publications

Two‐Terminal Perovskites Tandem Solar Cells: Recent Advances and Perspectives

Two‐Terminal Perovskites Tandem Solar Cells: Recent Advances and Perspectives

Caesium for Perovskite Solar Cells: An Overview

Highly efficient MoOx-free semitransparent perovskite cell for 4 T tandem application improving the efficiency of commercially-available Al-BSF silicon

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