Flexible large-area organic tandem solar cells with high defect tolerance and device yield

In the last decade, perovskite solar cells (PSCs) have greatly drawn researchers’ attention, with the power conversion efficiency surging from 3.8% to 25.5%. PSCs possess the merits of low cost, simple fabrication process and high performance, which could be one of the most promising photovoltaic technologies in the future. In this review, we focus on the summary of the updated progresses in single junction PSCs including efficiency, stability and large area module. Then, the important progresses in tandem solar cells are briefly discussed. A prospect into the future of the field is also included.

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The recent progress of metal-halide perovskite-based tandem solar cells

Materials Chemistry Frontiers ◽

10.1039/d0qm01085e ◽

2021 ◽

Author(s):

Cenqi Yan ◽

Jiaming Huang ◽

Dong Dong Li ◽

Gang Li

Keyword(s):

Solar Cells ◽

Recent Progress ◽

Metal Halide ◽

Tandem Solar Cells ◽

Single Junction ◽

Hybrid Perovskite ◽

Metal Halide Perovskite ◽

Halide Perovskite

Tandem solar cells (TSCs) are devices made of multiple junctions with complementary absorption ranges, which aim to overcome the Shockley–Queisser limit of single-junction solar cells. Currently, metal-halide hybrid perovskite solar...

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Improved Nanophotonic Front Contact Design for High Performance Perovskite Single‐junction and Perovskite/Perovskite Tandem Solar Cells

Solar RRL ◽

10.1002/solr.202100509 ◽

2021 ◽

Author(s):

Mohammad Ismail Hossain ◽

Md. Shahiduzzaman ◽

Ahmed Mortuza Saleque ◽

Md. Rashedul Huqe ◽

Wayesh Qarony ◽

...

Keyword(s):

Solar Cells ◽

High Performance ◽

Tandem Solar Cells ◽

Single Junction

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Four-terminal perovskite/silicon tandem solar cells based on large-area perovskite solar cells utilizing low-cost copper semi-transparent electrode

Applied Physics A ◽

10.1007/s00339-021-05234-w ◽

2022 ◽

Vol 128 (2) ◽

Author(s):

Manas R. Samantaray ◽

Dhriti S. Ghosh ◽

Nikhil Chander

Keyword(s):

Solar Cells ◽

Low Cost ◽

Perovskite Solar Cells ◽

Transparent Electrode ◽

Large Area ◽

Tandem Solar Cells

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Shockley–Queisser triangle predicts the thermodynamic efficiency limits of arbitrarily complex multijunction bifacial solar cells

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.1910745116 ◽

2019 ◽

Vol 116 (48) ◽

pp. 23966-23971 ◽

Cited By ~ 1

Author(s):

Muhammad A. Alam ◽

M. Ryyan Khan

Keyword(s):

Solar Cells ◽

Series Resistance ◽

Thermodynamic Efficiency ◽

Complex Cell ◽

Fundamental Limits ◽

Tandem Solar Cells ◽

Single Junction ◽

Trade Offs ◽

Significant Interest ◽

Physical Principles

As monofacial, single-junction solar cells approach their fundamental limits, there has been significant interest in tandem solar cells in the presence of concentrated sunlight or tandem bifacial solar cells with back-reflected albedo. The bandgap sequence and thermodynamic efficiency limits of these complex cell configurations require sophisticated numerical calculation. Therefore, the analyses of specialized cases are scattered throughout the literature. In this paper, we show that a powerful graphical approach called the normalized “Shockley–Queisser (S-Q) triangle” (i.e., imp=1−vmp) is sufficient to calculate the bandgap sequence and efficiency limits of arbitrarily complex photovoltaic (PV) topologies. The results are validated against a wide variety of specialized cases reported in the literature and are accurate within a few percent. We anticipate that the widespread use of the S-Q triangle will illuminate the deeper physical principles and design trade-offs involved in the design of bifacial tandem solar cells under arbitrary concentration and series resistance.

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Towards Stabilized 10% Efficiency of Large-Area (> 5000cm2) a-Si/a-SiGe Tandem Solar Cells using High-Rate Deposition

MRS Proceedings ◽

10.1557/proc-664-a11.1 ◽

2001 ◽

Vol 664 ◽

Cited By ~ 5

Author(s):

Shingo Okamoto ◽

Akira Terakawa ◽

Eiji Maruyama ◽

Wataru Shinohara ◽

Makoto Tanaka ◽

...

Keyword(s):

Solar Cells ◽

Layer Structure ◽

High Rate ◽

Plasma Cvd ◽

Large Area ◽

Tandem Solar Cells ◽

Cvd Method ◽

Hydrogen Dilution ◽

High Photosensitivity ◽

Deposition Conditions

ABSTRACTThis paper reviews recent progress in large-area a-Si/a-SiGe tandem solar cells in Sanyo. Much effort has been devoted to increasing both the stabilized efficiency and the process throughput. A key issue in increasing the stabilized efficiency is thinner i-layer structure with an improved optical confinement effect. High-rate deposition of the i-layers has been investigated using rf (13.56MHz) plasma-CVD method while keeping the substrate temperature below 200 °C. A high photosensitivity of 106 of a-Si:H films maintain up to the deposition rate (Rd) of 15 Å/s by optimizing hydrogen dilution and other deposition conditions. It is of great importance to utilize the effect of hydrogen dilution which can reduce the incorporation of excess hydrogen in the films. The world's highest conversion efficiency of 11.2% has been achieved for a large-area (8252cm2) a-Si/a-SiGe tandem by combining the optimized hydrogen dilution and other solar cell related technologies.

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