Improved Efficiency of Organic Photovoltaic Cells by Incorporation of AuAg-Alloyed Nanoprisms

Liu, Dingkun; Liang, Qiangbing; Li, Guohui; Gao, Xinjie; Wang, Wenyan; Zhan, Qiuqiang; Ji, Ting; Hao, Yuying; Cui, Yanxia

doi:10.1109/jphotov.2017.2688578

Cited by 12 publications

(3 citation statements)

References 28 publications

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“…In most of the work, the stabilities of the organic PM devices are not discussed, which is crucial to solve before putting them into practical applications. Moreover, the introduction of metal micro/nano structures into organic PM photodetectors should be consolidated with more attention as a feasible approach of manipulating the carrier generation and distribution like in organic solar cells [ 99 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 ]. It is emphasized that, recently, organic-inorganic hybrid perovskite photodetectors have also been reported with extremely high quantum efficiency [ 112 , 113 , 114 , 115 ] of which the principles were explained based on the trapped carrier assisted carrier tunneling or ion migration effect.…”

Section: Discussionmentioning

confidence: 99%

Research Progress in Organic Photomultiplication Photodetectors

et al. 2018

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Organic photomultiplication photodetectors have attracted considerable research interest due to their extremely high external quantum efficiency and corresponding high detectivity. Significant progress has been made in the aspects of their structural design and performance improvement in the past few years. There are two types of organic photomultiplication photodetectors, which are made of organic small molecular compounds and polymers. In this paper, the research progress in each type of organic photomultiplication photodetectors based on the trap assisted carrier tunneling effect is reviewed in detail. In addition, other mechanisms for the photomultiplication processes in organic devices are introduced. Finally, the paper is summarized and the prospects of future research into organic photomultiplication photodetectors are discussed.

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Section: Discussionmentioning

confidence: 99%

Research Progress in Organic Photomultiplication Photodetectors

et al. 2018

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“…Despite these features, AuNTrs are actually less investigated in comparison to gold nanorods, due to the high complexity of available synthetic protocols and poor yields [ 6 ]. Moreover, the particles obtained with nowadays procedures show big lateral dimensions (average edge length of about 284 nm [ 7 ]) and no AuNTrs with size below 50 nm could be found in the literature. In addition, the stability of these NPs is low, and oxidation with subsequent reshaping phenomena may occur a few hours after synthesis if no proper surface coating is developed and exploited [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Ultrasmall Single-Crystal Gold–Silver Alloy Nanotriangles and Their Application in Photothermal Therapy

et al. 2021

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Photothermal therapy has always been a very attractive anti-cancer strategy, drawing a lot of attention thanks to its excellent performance as a non-invasive and pretty safe technique. Lately, nanostructures have become the main characters of the play of cancer therapy due to their ability to absorb near-infrared radiation and efficient light-to-heat conversion. Here we present the synthesis of polyethylene glycol (PEG)-stabilized hybrid ultrasmall (<20 nm) gold–silver nanotriangles (AuAgNTrs) and their application in photothermal therapy. The obtained AuAgNTrs were deeply investigated using high-resolution transmission electron microscopy (HR-TEM). The cell viability assay was performed on U-87 glioblastoma multiforme cell model. Excellent photothermal performance of AuAgNTrs upon irradiation with NIR laser was demonstrated in suspension and in vitro, with >80% cell viability decrease already after 10 min laser irradiation with a laser power P = 3W/cm2 that was proved to be harmless to the control cells. Moreover, a previous cell viability test had shown that the nanoparticles themselves were reasonably biocompatible: without irradiation cell viability remained high. Herein, we show that our hybrid AuAgNTrs exhibit very exciting potential as nanostructures for hyperthermia cancer therapy, mostly due to their easy synthesis protocol, excellent cell compatibility and promising photothermal features.

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“…PM type OPDs made with the small organic molecules were reported, but their fabrication required expensive thin film deposition systems [4,[19][20][21]. In comparison, the solution processable functional polymer-based heterojunctions are better candidates for developing low cost PM type OPDs [22][23][24][25][26][27]. Among the diverse heterojunction formulas, polymer:fullerene blends with a weight ratio of polymer to fullerene of much higher than 1:1 are quite intensively investigated [10,[28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Effect of photogenerated carrier distribution on performance enhancement of photomultiplication organic photodetectors

Wang

Shi

Zhang

et al. 2019

Organic Electronics

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The trap-assisted photomultiplication (PM) organic photodetectors (OPDs) are very attractive for achieving high sensitivity photodetection, with external quantum efficiency (EQE) in excess of 100%. A classic structure of PM-type OPDs has a poly-3-hexylthiophene (P3HT): Phenyl-C70-butyric acid methyl ester (PC70BM) blend active layer, made with the weight ratio of P3HT to PC70BM of 100:1. The presence of a low PC70BM content in the P3HT:PC70BM blend layer forms isolated PC70BM short wavelength range while the OPD with a thick active layer (325 nm) has the highest detectivity of 2.32×10 13 Jones at the long wavelength range. Our work contributes to the development of high performance low-cost PM OPDs for detecting weak light signals.

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Improved Efficiency of Organic Photovoltaic Cells by Incorporation of AuAg-Alloyed Nanoprisms

Cited by 12 publications

References 28 publications

Research Progress in Organic Photomultiplication Photodetectors

Research Progress in Organic Photomultiplication Photodetectors

Synthesis of Ultrasmall Single-Crystal Gold–Silver Alloy Nanotriangles and Their Application in Photothermal Therapy

Effect of photogenerated carrier distribution on performance enhancement of photomultiplication organic photodetectors

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