A Universal Interface Layer Based on an Amine‐Functionalized Fullerene Derivative with Dual Functionality for Efficient Solution Processed Organic and Perovskite Solar Cells

Azimi, Hamed; Ameri, Tayebeh; Zhang, Hong; Hou, Yi; Quiroz, César Omar Ramírez; Min, Jie; Hu, Mengyao; Zhang, Zhiguo; Przybilla, Thomas; Matt, Gebhard J.; Spiecker, Erdmann; Li, Yongfang; Brabec, Christoph J.

doi:10.1002/aenm.201401692

Cited by 148 publications

(87 citation statements)

References 34 publications

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“…While PffBT4T-2DT:IDTBR has the highest efficiency among all the PffBT4T-2DT-based organic solar cells investigated in this study, we are most interested in the origin of the high open-circuit voltages. 33,34 Therefore, we studied PffBT4T-2DT:FBR, the blend with the highest V oc , in more detail in the following.…”

Section: Resultsmentioning

confidence: 99%

Reduced voltage losses yield 10% efficient fullerene free organic solar cells with >1 V open circuit voltages

Baran

Kirchartz

Wheeler

et al. 2016

Energy Environ. Sci.

488

434

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Section: Resultsmentioning

confidence: 99%

Reduced voltage losses yield 10% efficient fullerene free organic solar cells with >1 V open circuit voltages

Baran

Kirchartz

Wheeler

et al. 2016

Energy Environ. Sci.

488

434

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“…It is known that surface modification has been widely used to improve the performance of organic solar cells and dye-sensitized solar cells [16–19]. Interfacial engineering has been also used as a new strategy to control the morphology of perovskite layer and improve the efficiency of PSCs.…”

Section: Introductionmentioning

confidence: 99%

Enhanced performance of CH3NH3PbI3−x Cl x perovskite solar cells by CH3NH3I modification of TiO2-perovskite layer interface

et al. 2016

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In this work, perovskite solar cells (PSCs) with CH3NH3PbI3-xClx as active layer and spiro-OMeTAD as hole-transport media have been fabricated by one-step method. The methylammonium iodide (CH3NH3I) solution with different concentrations is used to modify the interface between mesoporous TiO2 (meso-TiO2) film and CH3NH3PbI3−xClx perovskite layer. Several techniques including X-ray diffraction, scanning electron microscopy, optical absorption, electrochemical impedance spectroscopy (EIS) and photoluminescence are used to investigate the effect of the interfacial modification. It is found that the interfacial modification by CH3NH3I enhance the crystallinity and increase the grain size of CH3NH3PbI3−xClx layer, and improve the surface wetting properties of perovskite precursor on meso-TiO2 film. The sunlight absorption and external quantum efficiency of PSCs in the visible region with wavelength less than 600 nm have been improved. The Nyquist plots obtained from the EIS suggest that the CH3NH3I modification can reduce the charge recombination rates. The photoluminescence measurement shows that the exciton dissociation in the modified devices is more effective than that in the control samples. The photovoltaic performance of the modified devices can be significantly improved with respect to the reference (control) devices. The CH3NH3I modified devices at the optimized concentration demonstrate the average power conversion efficiency of 12.27 % in comparison with the average efficiency of 9.68 % for the reference devices.Electronic supplementary materialThe online version of this article (doi:10.1186/s11671-016-1540-4) contains supplementary material, which is available to authorized users.

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“…Recent advances in optimizing the perovskite morphology and cathode interface have resulted in high PCE in the PEDOT:PSSbased PVSCs. [15][16][17][18][19][20][21][22][23] However, the open-circuit voltage ( V oc ) (0.90-0.95 V) in the PEDOT:PSS-based PVSCs is typically lower than that (≈1.05 V) obtained from meso-superstructured PVSCs due to the mismatched workfunction between PEDOT:PSS and the valence band of perovskite semiconductor. Therefore, new anode modifi cation is also important to fully unveil the potential of inverted PHJ PVSCs.…”

mentioning

confidence: 98%

Improving Film Formation and Photovoltage of Highly Efficient Inverted‐Type Perovskite Solar Cells through the Incorporation of New Polymeric Hole Selective Layers

Xue

Chen

Liu

et al. 2015

Advanced Energy Materials

160

117

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effi ciency (PCE) of the record perovskite solar cells (PVSCs) has already reached over 20%, [ 6 ] making it a potential contender for new generation photovoltaic technology.The perovskite semiconductors can be adopted in various types of solar cell architectures including perovskite-sensitized solar cells, [ 1 ] meso-superstructured solar cells and planar heterojunction (PHJ) solar cells. [ 7,8 ] The latter one, which has a device architecture resembles that of polymer solar cells, is particularly attractive for potential commercialization due to the simplicity of the device structure, low-temperature solution processibility, as well as the potential of large-scale manufacturing using a continuous coating technique on fl exible substrates. [8][9][10][11][12][13][14] The most commonly used inverted device architecture for PHJ PVSCs is ITO/ poly(3,4-ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS)/perovskite/ phenyl-C61-butyric acid methyl ester (PC 61 BM)/metal, in which the PEDOT:PSS and PC 61 BM serve as hole-transporting layer (HTL) and electron-transporting layer (ETL), respectively. Recent advances in optimizing the perovskite morphology and cathode interface have resulted in high PCE in the PEDOT:PSSbased PVSCs. [15][16][17][18][19][20][21][22][23] However, the open-circuit voltage ( V oc ) (0.90-0.95 V) in the PEDOT:PSS-based PVSCs is typically lower than that (≈1.05 V) obtained from meso-superstructured PVSCs due to the mismatched workfunction between PEDOT:PSS and the valence band of perovskite semiconductor. Therefore, new anode modifi cation is also important to fully unveil the potential of inverted PHJ PVSCs. [ 3,7,[24][25][26][27] Although several inorganicbased HTLs have been exploited to enhance the V oc and PCE of PHJ PVSCs, the severe surface charge recombination due to the presence of surface traps in the metal oxide limits their performance and the high temperature sintering process (>300 °C) required for preparing oxide fi lms with high crystallinity make it incompatible for roll-to-roll printing process and limits its practical applications. [ 12,[28][29][30][31] PEDOT:PSS is generally used as anode interlayer because of its solution processibility, good electrical property, low processing temperature, and commercial availability. Nevertheless,

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A Universal Interface Layer Based on an Amine‐Functionalized Fullerene Derivative with Dual Functionality for Efficient Solution Processed Organic and Perovskite Solar Cells

Cited by 148 publications

References 34 publications

Reduced voltage losses yield 10% efficient fullerene free organic solar cells with >1 V open circuit voltages

Reduced voltage losses yield 10% efficient fullerene free organic solar cells with >1 V open circuit voltages

Enhanced performance of CH3NH3PbI3−x Cl x perovskite solar cells by CH3NH3I modification of TiO2-perovskite layer interface

Improving Film Formation and Photovoltage of Highly Efficient Inverted‐Type Perovskite Solar Cells through the Incorporation of New Polymeric Hole Selective Layers

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