Highly Transparent Organic Solar Cells with All‐Near‐Infrared Photoactive Materials

Xie, Yuanpeng; Xia, Ruoxi; Li, Tengfei; Ye, Linglong; Zhan, Xiaowei; Yip, Hin‐Lap; Sun, Yanming

doi:10.1002/smtd.201900424

Cited by 63 publications

(52 citation statements)

References 52 publications

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“…The ternary OPVs based on PBT7:F8IC:PC 71 BM demonstrated a high PCE of 12.3%. More recently, Xie and coworkers fabricated highly transparent OPVs by using PDTP‐DFBT:FOIC BHJ, in which both the donor and the acceptor shows very high transparency in the visible region . Inspired by optical simulations, MoO 3 with an optimal thickness of 35 nm was applied on top of a transparent Ag electrode, which yielded a PCE of 3.5% with an AVT of 61.5%.…”

Section: Nir Photoelectric Materials For Opvsmentioning

confidence: 99%

Near‐infrared organic photoelectric materials for light‐harvesting systems: Organic photovoltaics and organic photodiodes

Xie

Chen

Ying

et al. 2019

InfoMat

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The inherent advantages of organic optoelectronic materials endow lightharvesting systems, including organic photovoltaics (OPVs) and organic photodiodes (OPDs), with multiple advantages, such as low-cost manufacturing, light weight, flexibility, and applicability to large-area fabrication, make them promising competitors with their inorganic counterparts. Among them, nearinfrared (NIR) organic optoelectronic materials occupy a special position and have become the subject of extensive research in both academia and industry.The introduction of NIR materials into OPVs extends the absorption spectrum range, thereby enhancing the photon-harvesting ability of the devices, due to which they have been widely used for the construction of semitransparent solar cells with single-junction or tandem architectures. NIR photodiodes have tremendous potential in industrial, military, and scientific applications, such as remote control of smart electronic devices, chemical/biological sensing, environmental monitoring, optical communication, and so forth. These practical and potential applications have stimulated the development of NIR photoelectric materials, which in turn has given impetus to innovation in light-harvesting systems. In this review, we summarize the common molecular design strategies of NIR photoelectric materials and enumerate their applications in OPVs and OPDs. K E Y W O R D Snear infrared, organic optoelectronic materials, organic photodiodes, organic photovoltaics

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Section: Nir Photoelectric Materials For Opvsmentioning

confidence: 99%

Near‐infrared organic photoelectric materials for light‐harvesting systems: Organic photovoltaics and organic photodiodes

Xie

Chen

Ying

et al. 2019

InfoMat

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“…OPVs can be tailored to the specific needs of the system, and thus are of interest in alternative applications where some degree of transparency or a certain aesthetic is required (e.g. window coverings and greenhouses) 47,48,49,50,51 . Additionally, the photosynthetic portion of such a combined system could be filled by a number of algal and agricultural candidates, from algae grown to produce biofuels and bioproducts, to crops grown for a variety of agricultural and commercial functions, further expanding potential applications for these technologies 52 .…”

Section: Discussionmentioning

confidence: 99%

Light Manipulation Using Organic Semiconducting Materials for Enhanced Photosynthesis

et al. 2020

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Photosynthetic microorganisms, such as algae, are sources of bioproducts and pharmaceuticals. As they require only sunlight and carbon dioxide to grow, they have potential for future mitigation of CO2 emissions. However, inefficiencies in the growth of these organisms remains an issue for realizing these emission reductions, primarily in terms of photosynthetic efficiency, photoinhibition, and photolimitation. Here, we show how the use of light filtration through semi-transparent films comprised of organic πconjugated molecules and subsequent organic photovoltaic devices, has the potential to improve the photosynthetic efficiency of algae, and the total power generation of a combined organic photovoltaic/algae system. Experimental data is used to fit a photosynthetic model predicting algal photosynthetic growth given light intensity and light transmission through an organic photovoltaic device. This work demonstrates the feasibility of using a system combining photosynthetic growth with electricity-producing organic photovoltaics and provides a template for exploring other blended applications of these technologies. 3 Main The mass cultivation of photosynthetic microorganisms, collectively referred to herein as "algae" is of interest to agricultural, pharmaceutical, and energy industries. However, challenges including suboptimal photosynthetic efficiency and high operating expenses persist in large scale operations 1,2. This results in a high price point for algae feedstock, which makes algae biomass currently unsuitable for biofuel applications 3,4. The theoretical maximum efficiency of photosynthesis has been estimated between 8-12%, but in practice, photosynthetic efficiency is often much lower, around 1% 5,6,7. In algae, high photosynthetic efficiency is only realized at very low light intensities 8 , but can be improved by using red light, at wavelengths close to those absorbed by reaction-center chlorophyll and accessory light-absorbing pigment molecules 7,9,10,11,12. For photosynthetic applications of algae, the obvious choice for an abundant and sustainable light source is sunlight. However, direct sunlight encompasses the entire spectrum and has high intensity, causing photoinhibition and decreases in photosynthetic efficiency, in some cases completely killing algae cultures 13. Similar to photosynthesis, photoexcitation of the materials in organic photovoltaic devices (OPVs) induces charge separation, which can subsequently be used for conversion of light energy into usable electricity. OPVs have active layers comprised of organic π-conjugated materials (typically polymers or small molecules) that can be tailored to absorb light at desired wavelengths, while remaining transparent in other parts of the spectrum 14,15,16. Here we investigate if OPVs, when used as electricity-producing light filters, improve the feasibility of algae biotechnology. We explore through experiments and modeling, if this combination of technologies increases solar power conversions, leading to the potential for energetic gains ...

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“…[ 76 ] Sun and coworkers studied all‐NIR‐absorbing materials having the same DMD structure (Figure 2b). [ 77 ] They used two conjugated molecules, PDTP‐DFBT and FOIC, to harvest solar light efficiently in the range of 500–1000 nm. The thickness of top MoO 3 layer was varied for optical management to alter the transmittance of the device and optimize the VLT.…”

Section: Semitransparent Opvs and Pscsmentioning

confidence: 99%

“…Plot of PCE with respect to AVT for ST‐OPVs and ST‐PSCs reported in the literature. [ 1,9–12,15,17,18,20–22,24,33–110 ] …”

Section: Introductionmentioning

confidence: 99%

Recent Progress on Advanced Optical Structures for Emerging Photovoltaics and Photodetectors

Chen

Tan

Hsu

et al. 2020

Adv Energy and Sustain Res

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Organic‐ and perovskite‐based optoelectronics, which merge excellent optoelectronic properties with potentially large and high‐throughput manufacturing, have attracted attention as emerging revolutionary technologies with considerable practical applications. Herein, the recent progresses in organic‐ and perovskite‐based photovoltaics and photodetectors with integration of judicious optical structure designs are summarized. The characterization and performance metrics of such devices from the perspectives of device architecture, physics, and material science are studied. Research related to devices having dielectric mirrors, diffracted Bragg reflectors/photonic crystals, microcavities, and 2D photonic structures as design elements is discussed. Some suggestions of promising directions for future studies are concluded.

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Highly Transparent Organic Solar Cells with All‐Near‐Infrared Photoactive Materials

Cited by 63 publications

References 52 publications

Near‐infrared organic photoelectric materials for light‐harvesting systems: Organic photovoltaics and organic photodiodes

Near‐infrared organic photoelectric materials for light‐harvesting systems: Organic photovoltaics and organic photodiodes

Light Manipulation Using Organic Semiconducting Materials for Enhanced Photosynthesis

Recent Progress on Advanced Optical Structures for Emerging Photovoltaics and Photodetectors

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