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Title: Stable low-bandgap Pb-Sn binary perovskites for tandem solar cells

Abstract

A low-bandgap (1.33 eV) Sn-based MA 0.5FA 0.5Pb 0.75Sn 0.25I 3 perovskite is developed via combined compositional, process, and interfacial engineering. It can deliver a high power conversion efficiency (PCE) of 14.19%. Lastly, a four-terminal all-perovskite tandem solar cell is demonstrated by combining this low-bandgap cell with a semitransparent MAPbI 3 cell to achieve a high efficiency of 19.08%.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Univ. of Washington, Seattle, WA (United States)
Publication Date:
Research Org.:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1343608
Report Number(s):
DOE-UW-Jen-33
Journal ID: ISSN 0935-9648
Grant/Contract Number:
EE0006710
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 28; Journal Issue: 40; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Citation Formats

Yang, Zhibin, Rajagopal, Adharsh, Chueh, Chu -Chen, Jo, Sae Byeok, Liu, Bo, Zhao, Ting, and Jen, Alex K. -Y. Stable low-bandgap Pb-Sn binary perovskites for tandem solar cells. United States: N. p., 2016. Web. doi:10.1002/adma.201602696.
Yang, Zhibin, Rajagopal, Adharsh, Chueh, Chu -Chen, Jo, Sae Byeok, Liu, Bo, Zhao, Ting, & Jen, Alex K. -Y. Stable low-bandgap Pb-Sn binary perovskites for tandem solar cells. United States. doi:10.1002/adma.201602696.
Yang, Zhibin, Rajagopal, Adharsh, Chueh, Chu -Chen, Jo, Sae Byeok, Liu, Bo, Zhao, Ting, and Jen, Alex K. -Y. 2016. "Stable low-bandgap Pb-Sn binary perovskites for tandem solar cells". United States. doi:10.1002/adma.201602696. https://www.osti.gov/servlets/purl/1343608.
@article{osti_1343608,
title = {Stable low-bandgap Pb-Sn binary perovskites for tandem solar cells},
author = {Yang, Zhibin and Rajagopal, Adharsh and Chueh, Chu -Chen and Jo, Sae Byeok and Liu, Bo and Zhao, Ting and Jen, Alex K. -Y.},
abstractNote = {A low-bandgap (1.33 eV) Sn-based MA0.5FA0.5Pb0.75Sn0.25I3 perovskite is developed via combined compositional, process, and interfacial engineering. It can deliver a high power conversion efficiency (PCE) of 14.19%. Lastly, a four-terminal all-perovskite tandem solar cell is demonstrated by combining this low-bandgap cell with a semitransparent MAPbI3 cell to achieve a high efficiency of 19.08%.},
doi = {10.1002/adma.201602696},
journal = {Advanced Materials},
number = 40,
volume = 28,
place = {United States},
year = 2016,
month = 8
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 22works
Citation information provided by
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  • Tandem solar cells provide an effective way to harvest a broader spectrum of solar radiation by combining two or more solar cells with different absorption bands. However, for polymer solar cells, the performance of tandem devices lags behind single-layer solar cells mainly due to the lack of a suitable low-bandgap polymer. Here, we demonstrate highly efficient single and tandem polymer solar cells featuring a low-bandgap conjugated polymer (PBDTT-DPP: bandgap, {approx}1.44 eV). A single-layer device based on the polymer provides a power conversion efficiency of {approx}6%. When the polymer is applied to tandem solar cells, a power conversion efficiency of 8.62%more » is achieved, which is, to the best of our knowledge, the highest certified efficiency for a polymer solar cell to date.« less
  • Tandem solar cells using only metal-halide perovskite sub-cells are an attractive choice for next-generation solar cells. However, the progress in developing efficient all-perovskite tandem solar cells has been hindered by the lack of high-performance low-bandgap perovskite solar cells. Here, we report efficient mixed tin-lead iodide low-bandgap (~1.25 eV) perovskite solar cells with open-circuit voltages up to 0.85 V and over 70% external quantum efficiencies in the infrared wavelength range of 700-900 nm, delivering a short-circuit current density of over 29 mA cm-2 and demonstrating suitability for bottom-cell applications in all-perovskite tandem solar cells. Our low-bandgap perovskite solar cells achieve amore » maximum power conversion efficiency of 17.6% and a certified efficiency of 17.01% with a negligible current-voltage hysteresis. When mechanically stacked with a ~1.58 eV bandgap perovskite top cell, our best all-perovskite 4-terminal tandem solar cell shows a steady-state efficiency of 21.0%.« less
  • Cited by 11
  • Owing to their high efficiency, low-cost solution-processability, and tunable bandgap, perovskite solar cells (PSCs) made of hybrid organic-inorganic perovskite (HOIP) thin films are promising top-cell candidates for integration with bottom-cells based on Si or other low-bandgap solar-cell materials to boost the power conversion efficiency (PCE) beyond the Shockley-Quiesser (S-Q) limit. In this review, recent progress in such tandem solar cells based on the emerging PSCs is summarized and reviewed critically. Notable achievements for different tandem solar cell configurations including mechanically-stacked, optical coupling, and monolithically-integrated with PSCs as top-cells are described in detail. Highly-efficient semitransparent PSC top-cells with high transmittance inmore » near-infrared (NIR) region are critical for tandem solar cells. Different types of transparent electrodes with high transmittance and low sheet-resistance for PSCs are reviewed, which presents a grand challenge for PSCs. The strategies to obtain wide-bandgap PSCs with good photo-stability are discussed. In conclusion, the PCE reduction due to reflection loss, parasitic absorption, electrical loss, and current mismatch are analyzed to provide better understanding of the performance of PSC-based tandem solar cells.« less
    Cited by 11