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Journal ArticleDOI

Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells.

TLDR
A scalable, hysteresis-free and planar architecture perovskite solar cell is presented, employing a flame spray synthesized low-temperature processed NiO (LT-NiO) as hole-transporting layer yielding efficiencies close to 18%.
Abstract
UNLABELLED A scalable, hysteresis-free and planar architecture perovskite solar cell is presented, employing a flame spray synthesized low-temperature processed NiO (LT-NiO) as hole-transporting layer yielding efficiencies close to 18%. Importantly, it is found that LT-NiO boosts the limits of open-circuit voltages toward an impressive non-radiative voltage loss of 0.226 V only, whereas PEDOT PSS suffers from significant large non-radiative recombination losses.

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Citations
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Journal ArticleDOI

Promises and challenges of perovskite solar cells

TL;DR: Because photocurrents are near the theoretical maximum, the focus is on efforts to increase open-circuit voltage by means of improving charge-selective contacts and charge carrier lifetimes in perovskites via processes such as ion tailoring.
Journal ArticleDOI

Scalable fabrication of perovskite solar cells

TL;DR: In this paper, the authors review recent progress and challenges in scaling up perovskite solar cells and related efforts to enable the terawatt-scale manufacturing and deployment of this PV technology.
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A generic interface to reduce the efficiency-stability-cost gap of perovskite solar cells

TL;DR: Tantalum-doped tungsten oxide forms almost ohmic contacts with inexpensive conjugated polymer multilayers to create a hole-transporting material with a small interface barrier, which eliminates the use of ionic dopants that compromise device stability.
Journal ArticleDOI

Perovskite Solar Cells on the Way to Their Radiative Efficiency Limit – Insights Into a Success Story of High Open‐Circuit Voltage and Low Recombination

TL;DR: Inorganic-organic lead-halide perovskite solar cells have reached efficiencies above 22% within a few years of research as discussed by the authors, and achieved photovoltages of > 1.2 V for a material with a bandgap of 1.6 eV.
References
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Journal ArticleDOI

Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells

TL;DR: In this article, an upper theoretical limit for the efficiency of p−n junction solar energy converters, called the detailed balance limit of efficiency, has been calculated for an ideal case in which the only recombination mechanism of holeelectron pairs is radiative as required by the principle of detailed balance.
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Sequential deposition as a route to high-performance perovskite-sensitized solar cells

TL;DR: A sequential deposition method for the formation of the perovskite pigment within the porous metal oxide film that greatly increases the reproducibility of their performance and allows the fabrication of solid-state mesoscopic solar cells with unprecedented power conversion efficiencies and high stability.
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Efficient planar heterojunction perovskite solar cells by vapour deposition

TL;DR: It is shown that perovskite absorbers can function at the highest efficiencies in simplified device architectures, without the need for complex nanostructures.
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Interface engineering of highly efficient perovskite solar cells

TL;DR: Perovskite films received a boost in photovoltaic efficiency through controlled formation of charge-generating films and improved current transfer to the electrodes and low-temperature processing steps allowed the use of materials that draw current out of the perovskites layer more efficiently.
Journal ArticleDOI

Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells

TL;DR: A bilayer architecture comprising the key features of mesoscopic and planar structures obtained by a fully solution-based process is reported, providing important progress towards the understanding of the role of solution-processing in the realization of low-cost and highly efficient perovskite solar cells.
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