Engineering of hole-selective contact for high-performance perovskite solar cell featuring silver back-electrode

Lin, Liujin; Gu, Chenjie; Zhu, Juye; Ye, Qiufeng; Jiang, Ershuai; Wang, Wei; Liao, Mingdun; Yang, Zhenhai; Zeng, Yuheng; Sheng, Jiang; Guo, Wei; Yan, Baojie; Gao, Pingqi; Ye, Jichun; Zhu, Yuejin

doi:10.1007/s10853-018-03258-x

Cited by 64 publications

(26 citation statements)

References 36 publications

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“…Incorporation a thin MoO x layer between the HTL and top electrode in n–i–p PSCs has also shown to improve hole extraction and device performance. For example, Lin et al [ 218 ] showed an improvement in PCE from 17.02% to 18.62% when a thin MoO 3 layer was deposited between Spiro‐OMeTAD and the Ag electrode. Impedance spectroscopy and dark current investigations revealed that this increase is due to a decrease in series resistance and inhibition of leakage current upon the incorporation of MoO 3 that resulted in a higher V OC and FF.…”

Section: Applications Of Tmos In Oscs and Pscsmentioning

confidence: 99%

Robust Inorganic Hole Transport Materials for Organic and Perovskite Solar Cells: Insights into Materials Electronic Properties and Device Performance

et al. 2020

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Figure 11. a) Energy-level diagram of MAPbI 3 PSCs using MoO 3 as a HTL. This leads to the creation of IS due to a chemical reaction between MoO 3 and perovskite. b) Incorporation of a thin organic HTL layer (Spiro-MeOTAD) inhibits such a chemical reaction. For each layer, the Fermi-level position (E F , dotted line), work function (in red), electron affinity, and ionization energy (in black) are indicated in eV. Reproduced with permission. [212]

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Section: Applications Of Tmos In Oscs and Pscsmentioning

confidence: 99%

Robust Inorganic Hole Transport Materials for Organic and Perovskite Solar Cells: Insights into Materials Electronic Properties and Device Performance

et al. 2020

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“…For example, compared with conventional III-V and II-VI semiconductors, halide perovskites have facile tunable emissions throughout the entire visible range, which can be achieved by composition control. [31][32][33][34] In the ideal form of cubic perovskite structure ABX 3 , the monovalent A-cation occupies the center of the unit cell, while the divalent B-cation and monovalent X-anions form an [BX6] octahedra that occupies the corners around the A-cation. [35] In lead-halide perovskites with high photovoltaic performance, the A is usually methylammonium CH 3 NH + , B is Pb 2 + , and X is I À .…”

Section: Introductionmentioning

confidence: 99%

Machine Learning Lattice Constants for Cubic Perovskite Compounds

Zhang

Xu²

2020

ChemistrySelect

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Cubic perovskites have attracted great attention in the past decade due to unique and tunable optical, mechanical, and electrical properties, which are promising candidates for various applications such as solar cells, light emitting diodes, actuators, and laser cooling devices. The lattice constant, a, as the only variable parameter among the six parameters in the crystal structure, has a significant impact on the structural stability, bandgap structure, and thus materials performance. In this study, we develop the Gaussian process regression (GPR) model to shed light on the statistical relationship between ionic radii and lattice constants for cubic perovskite ABX3 compounds. A total of 135 samples with lattice constants ranging from 3.680 Å to 6.330 Å are explored. The model has a high degree of accuracy and stability that contributes to fast and robust lattice constant estimations.

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“…The possible explanations for the effect of MoO 3 proposed in the literature are the formation of a surface dipole or contact p‐doping at the spiro‐OMeTAD/MoO 3 interface, a lower contact resistance between spiro‐OMeTAD and Au enabled by MoO 3 , and the protection of spiro‐OMeTAD against the hot Au vapor during thermal evaporation. [ 27–30 ]…”

Section: Resultsmentioning

confidence: 99%

Development of a Perovskite Solar Cell Architecture for Opaque Substrates

et al. 2020

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To date, substrate‐configuration metal‐halide perovskite solar cells (PSCs) fabricated on opaque substrates such as metal foils provide inferior efficiencies compared with superstrate‐configuration cells on transparent substrates such as glass. Herein, a substrate‐configuration PSC on planarized steel is presented. To quantify the differences between the two configurations, a 15.6%‐efficient n–i–p superstrate‐configuration PSC is transformed step wise into a substrate‐configuration cell. Guided by optical modeling, the opaque Au electrode is replaced by a transparent MoO3/thin Au/polystyrene dielectric–metal–dielectric electrode. The semitransparent device affords efficiencies of 15.4% and 11.4% for bottom and top illumination, respectively. Subsequently, substrate‐configuration PSCs with a metal bottom electrode are fabricated on glass and planarized steel, using a thin MoO3 interlayer between the Au bottom electrode and the SnO2 electron transport layer. The glass‐based substrate‐configuration cell provides 14.0% efficiency with identical open‐circuit voltage and fill factor as the superstrate cell. The cell on planarized steel reaches 11.5% efficiency due to a lower fill factor. For both substrate‐configuration cells, the lower short‐circuit current density limits the efficiency. Optical modeling explains this quantitatively to be due to absorption and reflection by the top electrode and absorption by the organic hole transport layer.

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Engineering of hole-selective contact for high-performance perovskite solar cell featuring silver back-electrode

Cited by 64 publications

References 36 publications

Robust Inorganic Hole Transport Materials for Organic and Perovskite Solar Cells: Insights into Materials Electronic Properties and Device Performance

Robust Inorganic Hole Transport Materials for Organic and Perovskite Solar Cells: Insights into Materials Electronic Properties and Device Performance

Machine Learning Lattice Constants for Cubic Perovskite Compounds

Development of a Perovskite Solar Cell Architecture for Opaque Substrates

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