High-Efficiency Indoor Organic Photovoltaics with a Band-Aligned Interlayer

Kuen, Lik; Chen, Yuzhong; Chow, Philip C. Y.; Guangye, Zhang; Huang, Jiachen; Ma, Chao; Zhang, Jianquan; Yin, Hang; Cheung, Andy Man Hong; Wong, Kam Sing; So, Shu Kong; Yan, He

doi:10.1016/j.joule.2020.05.010

Cited by 208 publications

(228 citation statements)

References 77 publications

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“…Furthermore, the application of OPVs in indoor dim‐light energy harvesting is highly promising. [ 48–53 ] Indoor dim‐light can be directly converted into electrical energy to power smart electronic devices with low‐energy consumption. In comparison with solar irradiation, indoor dim‐light sources demonstrate distinct intensities and spectra.…”

Section: Introductionmentioning

confidence: 99%

Stretchable ITO‐Free Organic Solar Cells with Intrinsic Anti‐Reflection Substrate for High‐Efficiency Outdoor and Indoor Energy Harvesting

Huang

Ren

Zhang

et al. 2021

Adv Funct Materials

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Flexible photovoltaic devices are promising candidates for triggering the Internet of Things (IoT). However, the power conversion efficiencies (PCEs) of flexible organic photovoltaic (OPV) devices with high conductivity poly(3,4‐ethylene dioxythiophene):polystyrene sulfonate (PEDOT:PSS) electrodes on plastic are lagging behind the rigid devices due to the low transmittance of polyethylene terephthalate (PET)/PEDOT:PSS. Moreover, the poor stretchability of the commonly used plastic substrates largely hinders the practical application of wearable devices. Herein, a novel stretchable indium tin oxide (ITO)‐free OPV device with a surface‐texturing polydimethylsiloxane (PDMS) substrate for outdoor strong‐ and indoor dim‐light energy harvesting is reported. The high diffuse transmittance and haze effect of the substrate enable stretchable ITO‐free devices, yielding a high PCE of 15.3% under 1 sun illumination. More excitingly, the stretchable device based on textured PDMS/PEDOT:PSS maintains a comparable PCE of 20.5% (20.8% for the rigid device) under indoor light illumination. Notably, the stretchable device is much more insensitive to the light direction, maintaining 38.5% of the initial PCE at an extremely small incident angle of 10° (16.3% for glass/ITO‐based counterpart). The texturing stretchable substrate provides a new direction for achieving high performance and enhanced light utilization for the stretchable light‐harvesting device, suitable for indoor and outdoor applications.

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Section: Introductionmentioning

confidence: 99%

Stretchable ITO‐Free Organic Solar Cells with Intrinsic Anti‐Reflection Substrate for High‐Efficiency Outdoor and Indoor Energy Harvesting

Huang

Ren

Zhang

et al. 2021

Adv Funct Materials

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“…[3][4][5] The PDI-based OSCs have plausible potentials in the indoor organic photovoltaics and tandem OSCs in which PDI-based active layers serve as front subcells due to their matching light absorption and high voltage output. 6,7 In addition, PDI moieties have displayed promising applications in single-component OSCs that show simplified fabrication processes and significantly improved stability. [8][9][10] Despite that, the performance of PDI-based OSCs is still far lagging, 5,11,12 and more research efforts should be dedicated to exploring further new PDI molecules toward more efficient PDI-based OSCs.…”

Section: Introductionmentioning

confidence: 99%

Symmetry-Induced Orderly Assembly Achieving High-Performance Perylene Diimide-Based Nonfullerene Organic Solar Cells

et al. 2021

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Controllable assembly of organic semiconductors has opened an avenue for an in-depth perception of their structure-property relationships; however, a detailed investigation of their molecular controllability remains challenging. Discerning the assembly of organic semiconductors could enable the attainment of a significant improvement of performance. Here, we report the fabrication of efficient nonfullerene organic solar cells (OSCs) based on two isomeric perylene diimide (PDI)fused corannulene acceptors, namely, corannurylene pentapetalae (CRP). A single-crystal analysis demonstrated that differentially symmetric isomers such as CRP-1 and CRP-2 display various assembly framework structures. Both isomeric CRP acceptor-based solar cells showed excellent power conversion efficiencies matching a medium bandgap polymer donor (P3TEA). Compared with CRP-2, a high symmetry-induced orderly assembly endowed CRP-1 with a higher efficiency of 11.2%, which is the maximum performance of PDI-based OSCs reported to date. This study sheds light on designing high-performance organic semiconductors allowing for symmetric orderly assembly.

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“…9b. 9 The authors further compared the photostability of PBDB-TF:PC 71 BM, PBDB-TF:ITCC and PBDB-TF:IT-4F devices under indoor light at different intensities. The results reveal a strong dependence of the device degradation behaviour upon light intensity, with the devices under weak illumination exhibiting signicantly higher stability, retaining 90% of their initial efficiencies aer 500 hours of illumination (Fig.…”

Section: Stability Of Low Light Opvsmentioning

confidence: 99%

“…AM1.5G irradiation), there has been increasing research prevalence in the development of solution-processed organic PV (OPV), perovskite PV (PPV) and quantum dot PV (QDPV) devices for indoor applications. For example, impressive efficiencies of over 31% for OPV cells, 9 over 37% for PPV cells 10 and over 20% for QDPV cells 11 under various low light conditions have recently been achieved, already competing with their conventional inorganic counterparts. In addition, the indoor PV market is increasing rapidly with an estimated market size of $850 million by 2023, which may further reach $10 billion in the following years.…”

Section: Introductionmentioning

confidence: 99%

“…A high PCE of 30.1% was obtained with a high FF of 76% due to low leakage current and trap-assisted recombination in PDI-NObased OPVs under 1650 lx LED illumination. 9 Furthermore, OPVs based on ternary or quaternary blend systems are also a promising route for high-performing indoor PV applications. 32 For example, by introducing a polymer donor PDTSTPD to a binary PCDTBT:PC 71 BM blend system, the efficiency is increased from 16.5% to 20.8% under 300 lx uorescence light.…”

Section: Introductionmentioning

confidence: 99%

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Indoor application of emerging photovoltaics—progress, challenges and perspectives

et al. 2020

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High-Efficiency Indoor Organic Photovoltaics with a Band-Aligned Interlayer

Cited by 208 publications

References 77 publications

Stretchable ITO‐Free Organic Solar Cells with Intrinsic Anti‐Reflection Substrate for High‐Efficiency Outdoor and Indoor Energy Harvesting

Stretchable ITO‐Free Organic Solar Cells with Intrinsic Anti‐Reflection Substrate for High‐Efficiency Outdoor and Indoor Energy Harvesting

Symmetry-Induced Orderly Assembly Achieving High-Performance Perylene Diimide-Based Nonfullerene Organic Solar Cells

Indoor application of emerging photovoltaics—progress, challenges and perspectives

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