High efficiency organic solar cells based on amorphous electron-donating polymer and modified fullerene acceptor

Xiao, Biao; Zhang, Minli; Yan, Jun; Luo, Guoping; Gao, Ke; Liu, Jiyan; You, Qingliang; Wang, Hongbo; Gao, Chao; Zhao, Baofeng; Zhao, Xuebo; Wu, Hongbin; Liu, Feng

doi:10.1016/j.nanoen.2017.07.034

Cited by 62 publications

(40 citation statements)

References 49 publications

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Section: Is Characteristics For Photovoltaic Devicesmentioning

confidence: 99%

“…IS measurements were carried out for conjugated polymer based BHJ solar cell with the BHJ layer prepared by poly{4,8‐di(2,3‐dioctylthiopene‐5‐yl)‐2,6‐benzo[1,2‐b:4,5‐b′]dithiophene‐alt‐5,5‐[5′,8′‐di‐2‐thienyl‐(6′‐flouoro‐2′,3′‐bis‐(3″‐octyloxyphenyl)‐quinox‐aline)]} blended with ‐phenyl C71‐butyric acid methyl ester . The Nyquist plot for as‐cast and solvent annealed is represented in Figure c and d. IS spectra were compared with and without tetrahydrofuran vapor annealing treatment for 0 and 30 s at different applied voltages by estimating the transport and recombination ( R rec ) resistances.…”

Section: Is Characteristics For Photovoltaic Devicesmentioning

confidence: 99%

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Impedance Spectroscopy: A Versatile Technique to Understand Solution‐Processed Optoelectronic Devices

Ali

Chang

Imran

et al. 2019

Physica Rapid Research Ltrs

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Solution‐processed optoelectronic devices based on conjugated polymers, colloidal quantum dots (CQDs), halide perovskites, and so on are now emerging as a new‐generation semiconductor technology which prevails its conventional counterparts in terms of low fabrication cost, ease of scalable manufacturing, and abundant material designability. However, the solution‐processed thin films obtained through spin‐coating, spray, inkjet printing, and doctor blading usually suffer from low film quality and a high defect density especially at the interfaces of different functional layers. Currently, the most significant subject is to address the non‐ideal interfaces for achieving improved performance of the devices. Impedance spectroscopy (IS) is a universal technique that can help to examine the charge behavior at the interfaces in an electrochemical or solid‐state multilayered device. Owing to its ability to elucidate the charge transfer, charge transport, and accumulation within the interfaces of electrochemical or multilayered devices with minimal effects to the devices themselves, the use of IS has increased vividly in the last decades. This review provides the basic principles of IS and its applications on solution‐processed optoelectronic devices.

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Section: Is Characteristics For Photovoltaic Devicesmentioning

confidence: 99%

Section: Is Characteristics For Photovoltaic Devicesmentioning

confidence: 99%

Impedance Spectroscopy: A Versatile Technique to Understand Solution‐Processed Optoelectronic Devices

Ali

Chang

Imran

et al. 2019

Physica Rapid Research Ltrs

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“…Silicon‐based solar cells have dominated the photovoltaic market because of their high efficiency and long device lifetime, but the high fabrication cost limits their large‐scale applications. Organic solar cells are of great hope to ease the current situation due to their low‐cost fabrication process, but the efficiency and stability still need to be improved . Therefore, hybrid solar cells which combine the well‐established processing technologies of Si wafers and the low temperature fabrication of organic materials are very promising alternatives for future photovoltaic devices .…”

Section: Photovoltaic Performance Of the Hybrid Solar Cells With Diffmentioning

confidence: 99%

High Performance Silicon/Organic Hybrid Solar Cells with Dual Localized Surface Plasmonic Effects of Ag and Au Nanoparticles

Chen

Yang

et al. 2018

Solar RRL

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Effective light trapping induced by a dual localized plasmonic effect of Au and Ag nanoparticles (NPs) is adopted in poly‐(3,4‐ethylenedioxythiophene):poly (styrenesulfonic acid) (PEDOT:PSS) hybrid solar cells. Superior performance on light absorption is obtained after incorporating mixed Au and Ag NPs incorporating into PEDOT:PSS layer. Compared to devices with single NPs that only shows very limited plasmonic enhancement, dual NPs doped devices benefit from the dual plasmonic enhancement in visible light region. Therefore, power conversion efficiency (PCE) of 11.98 % has been achieved, which is about 18% higher than that of with the pristine one, exhibiting a PCE of 9.72%. The PCE enhancement is largely ascribed to the short‐circuit current (JSC) enhancement, which can be observed through the external quantum efficiency (EQE) curves. In addition, transient photovoltage (TPV) results show that the charge carrier lifetime is improved by the incorporation of dual nanoparticles, indicating a suppressed charge recombination during the physical process in the devices.

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“…Compared with traditional fullerene acceptors such as PC 61 BM or PC 71 BM, nonfullerene acceptors exhibit excellent optical absorption properties, easily tunable molecular energy levels, and potential for processing OPVs with low voltage loss. [27][28][29][30][31][32] SVA technique has been widely used in many systems of OPVs. [17][18][19][20][21][22][23][24][25][26] SVA is an efficient postprocessing technique to control the morphology of active layers, which provides molecular mobility for local rearrangement by penetrating solvent vapor into the active layer.…”

Section: Introductionmentioning

confidence: 99%

“…[17][18][19][20][21][22][23][24][25][26] SVA is an efficient postprocessing technique to control the morphology of active layers, which provides molecular mobility for local rearrangement by penetrating solvent vapor into the active layer. [27][28][29][30][31][32] SVA technique has been widely used in many systems of OPVs. Especially for small molecular OPVs, both phase separation and nucleation growth can be manipulated for achieving optimized morphology by employing SVA treatment on active layer.…”

Section: Introductionmentioning

confidence: 99%

Nonfullerene organic photovoltaic cells exhibiting 13.76% efficiency by employing upside‐down solvent vapor annealing

Jiao

Pang

2019

Int J Energy Res

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Summary Organic photovoltaic cells (OPVs) are fabricated with a polymer donor PM7 and a nonfullerene acceptor IT‐4Cl; the morphology of active layers is optimized by employing upside‐down solvent vapor annealing (UD‐SVA) method with different annealing solvents. The OPVs with CS2 as annealing solvent exhibit optimized power conversion efficiency (PCE) of 13.76%, with simultaneously increased short‐circuit current density (JSC) of 20.53 mA cm−2 and fill factor (FF) of 77.05%. More than 15% PCE improvement can be achieved by employing CS2 UD‐SVA treatment, which should be attributed to slightly enhanced photon harvesting, efficient exciton separation, charge transport, and collection, resulting from the well‐developed morphology of active layer. Moreover, the PM7:IT‐4Cl–based OPVs with CS2 as annealing solvent still can maintain PCE more than 13% in a wide treatment time range from 20 to 90 seconds. This work demonstrated that UD‐SVA has great potential in improving the performance of nonfullerene OPVs.

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High efficiency organic solar cells based on amorphous electron-donating polymer and modified fullerene acceptor

Cited by 62 publications

References 49 publications

Impedance Spectroscopy: A Versatile Technique to Understand Solution‐Processed Optoelectronic Devices

Impedance Spectroscopy: A Versatile Technique to Understand Solution‐Processed Optoelectronic Devices

High Performance Silicon/Organic Hybrid Solar Cells with Dual Localized Surface Plasmonic Effects of Ag and Au Nanoparticles

Nonfullerene organic photovoltaic cells exhibiting 13.76% efficiency by employing upside‐down solvent vapor annealing

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