Patterning of transparent polymers using high-throughput methods: application in flexible perovskite solar cells with enhanced light trapping

Perovskite inorganic-organic solar cells are fabricated as a sandwich structure of mesostructured TiO2 as electron transport layer (ETL), CH3NH3PbI3 as active material layer (AML), and Spiro-OMeTAD as hole transport layer (HTL). The crystallinity, structural morphology, and thickness of TiO2 layer play a crucial role to improve the overall device performance. The randomly distributed one dimensional (1D) TiO2 nanowires (TNWs) provide excellent light trapping with open voids for active filling of visible light absorber compared to bulk TiO2. Solid-state photovoltaic devices based on randomly distributed TNWs and CH3NH3PbI3 are fabricated with high open circuit voltage Voc of 0.91 V, with conversion efficiency (CE) of 7.4%. Mott-Schottky analysis leads to very high built-in potential (Vbi) ranging from 0.89 to 0.96 V which indicate that there is no depletion layer voltage modulation in the perovskite solar cells fabricated with TNWs of different lengths. Moreover, finite-difference time-domain (FDTD) analysis revealed larger fraction of photo-generated charges due to light trapping and distribution due to field convergence via guided modes, and improved light trapping capability at the interface of TNWs/CH3NH3PbI3 compared to bulk TiO2.

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Light-trapping in perovskite solar cells

AIP Advances ◽

10.1063/1.4953336 ◽

2016 ◽

Vol 6 (6) ◽

pp. 065002 ◽

Cited By ~ 19

Author(s):

Qing Guo Du ◽

Guansheng Shen ◽

Sajeev John

Keyword(s):

Solar Cells ◽

Light Trapping ◽

Perovskite Solar Cells

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High throughput fabrication of mesoporous carbon perovskite solar cells

Journal of Materials Chemistry A ◽

10.1039/c7ta05674e ◽

2017 ◽

Vol 5 (35) ◽

pp. 18643-18650 ◽

Cited By ~ 31

Author(s):

Jenny Baker ◽

Katherine Hooper ◽

Simone Meroni ◽

Adam Pockett ◽

James McGettrick ◽

...

Keyword(s):

Solar Cells ◽

High Throughput ◽

Mesoporous Carbon ◽

Near Infrared ◽

Perovskite Solar Cells ◽

Commercial Viability ◽

Screen Printed

Near infrared sintering in less than 25 seconds for enhanced commercial viability of screen printed perovskite solar cells.

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Dual Light Trapping and Water-Repellent Effects of a Flexible-Based Inverse Micro-Cone Array for Organic and Perovskite Solar Cells

ACS Applied Materials & Interfaces ◽

10.1021/acsami.8b08669 ◽

2018 ◽

Vol 10 (37) ◽

pp. 31291-31299 ◽

Cited By ~ 18

Author(s):

Riski Titian Ginting ◽

Eun-Bi Jeon ◽

Jung-Mu Kim ◽

Won-Yong Jin ◽

Jae-Wook Kang

Keyword(s):

Solar Cells ◽

Light Trapping ◽

Perovskite Solar Cells ◽

Water Repellent

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DFT analysis and FDTD simulation of CH3NH3PbI3−xClxmixed halide perovskite solar cells: role of halide mixing and light trapping technique

Journal of Physics D Applied Physics ◽

10.1088/1361-6463/aa83c8 ◽

2017 ◽

Vol 50 (41) ◽

pp. 415501 ◽

Cited By ~ 18

Author(s):

Mohaddeseh Saffari ◽

Mohammad Ali Mohebpour ◽

H Rahimpour Soleimani ◽

Meysam Bagheri Tagani

Keyword(s):

Solar Cells ◽

Light Trapping ◽

Perovskite Solar Cells ◽

Fdtd Simulation ◽

Halide Perovskite

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Photonic Curing of Nickel Oxide Transport Layer and Perovskite Active Layer for Flexible Perovskite Solar Cells: A Path Towards High-Throughput Manufacturing

Frontiers in Energy Research ◽

10.3389/fenrg.2021.640960 ◽

2021 ◽

Vol 9 ◽

Author(s):

Robert T. Piper ◽

Trey B. Daunis ◽

Weijie Xu ◽

Kurt A. Schroder ◽

Julia W. P. Hsu

Keyword(s):

Solar Cells ◽

Thermal Annealing ◽

High Throughput ◽

High Speed ◽

Sol Gel ◽

Perovskite Solar Cells ◽

Hole Transport ◽

Transport Layer ◽

Lead Iodide ◽

Photonic Curing

High-throughput roll-to-roll (R2R) manufacturing of perovskite solar cells (PSCs) is currently limited by thermal processes that take tens of minutes each, translating to impractically long annealing tools at high web speeds. In addition, PSCs are usually made with metal oxide transport layer materials that require high temperatures for thermal annealing. Here, we demonstrate the fabrication of PSCs using photonic curing, instead of thermal annealing, to convert NiOx directly from sol-gel precursors for hole transport layers and to crystallize methylammonium lead iodide (MAPbI3) active layers on flexible Willow® Glass substrates. Photonic curing uses short, intense pulses of light to process materials at a high speed, hence it is compatible with R2R manufacturing. We achieved power conversion efficiencies (PCEs) of 11.7% in forward-scan and 10.9% in reverse-scan for PSCs made with photonic cured NiOx and MAPbI3 films. Furthermore, both NiOx and MAPbI3 films could be processed with a single photonic curing pulse, with a web speed of 5.7 m/min, and still produce PCEs comparable to thermally annealed control samples. Based on the single-pulse photonic curing condition for each film, we project a web speed of 26 m/min, laying a pathway to high-throughput production of perovskite solar modules.

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