Spin-coated 10.46% and blade-coated 9.52% of ternary semitransparent organic solar cells with 26.56% average visible transmittance

Zhu, Can; Huang, He; Jia, Zhenrong; Cai, Fangfang; Li, Jing; Yuan, Jun; Meng, Lei; Peng, Hongjian; Zhang, Zhanjun; Zou, Yingping; Li, Yongfang

doi:10.1016/j.solener.2020.05.027

Cited by 31 publications

(24 citation statements)

References 57 publications

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“…Recently, semitransparent solar cells with power conversion efficiencies up to 10% and average visible transparencies in the range of 20–30% were reported. [ 50,51 ] Low bandgap polymers and various acceptor including NIR‐sensitive non‐fullerene acceptor were applied to achieve this remarkable performance.…”

Section: Applicationsmentioning

confidence: 99%

Low Band Gap Conjugated Semiconducting Polymers

Scharber

Sariciftci

2021

Adv Materials Technologies

132

104

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Important parameters of an organic semiconductor material are the electronic band gap (Eg) and the position of highest occupied and lowest unoccupied bands versus vacuum. These bands are called valence and conduction band for inorganic semiconductors. For organic semiconductors the bands defining the band gap are often called highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO). One advantage of semiconducting polymers is the ability to tune the band gap and the position of HOMO and LUMO levels by molecular chemical design. The organic photovoltaic solar cells need absorbers with a smaller bandgap to maximize the power conversion efficiency of these devices. There are several chemical strategies to synthesize low band gap polymers for optoelectronic applications. In this manuscript, an updated overview on the current status of these low band gap conjugated polymers will be given. The design principles of low band gap polymers, the properties of the resulting materials, and important applications and devices realized with this material class will be briefly discussed.

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Section: Applicationsmentioning

confidence: 99%

Low Band Gap Conjugated Semiconducting Polymers

Scharber

Sariciftci

2021

Adv Materials Technologies

132

104

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“…introduced indene‐C 60 bisadduct (ICBA) as the third component to enhance the performance of the PCE10:Y8 blend system. [ 161 ] ICBA has complementary absorption and a well‐aligned energy level that match the PCE10:Y8 blend. The optimal ternary ST‐OSC devices with PCE10:ICBA:Y8 (1:0.3:1.2 wt/wt) delivered impressive PCE and AVT values of 10.46% and 26.56%, respectively, which is ≈9% higher than the values of the parent PCE10:Y8 blend system (9.57%).…”

Section: Ternary St‐oscsmentioning

confidence: 99%

Latest Progress on Photoabsorbent Materials for Multifunctional Semitransparent Organic Solar Cells

Kini

Jeon

Moon

2021

Adv Funct Materials

117

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Semi‐transparent organic solar cells (ST‐OSCs) have revolutionized the field of photovoltaics (PVs) due to their unique abilities, such as transparency and color tunability, and have transformed normal power‐harvesting OSC devices into multifunctional devices, such as building‐integrated photovoltaics, agrivoltaics, floating photovoltaics, and wearable electronics. Very recently, ST‐OSCs have seen remarkable progress, with a rapid increase in power conversion efficiency from below 7% to 12–14%, with an average visible transparency of 9–25%, especially due to the use of low bandgap semiconductors including polymer donors and non‐fullerene acceptors that exhibit absorption in the near‐infrared region as photoabsorbent materials. From this perspective, the latest developments in ST‐OSCs stemming from the innovations in photovoltaic materials that delivered multifunctional ST‐OSCs with top‐of‐the‐line power conversion efficiencies are discussed to shed light on the structure‐property relationship between molecular design and current challenges in this cutting‐edge research field. Finally, personal perspectives, including research directions for the future use of ST‐OSCs in multifunctional applications, are also proposed.

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“…The potential of FA that can be used in semitransparent OSCs was also studied, indicating that the strategy of using ternary devices involving a FA and an NFA is very promising. 109 In conclusion, the role of the FA in a ternary blend could involve a synergy of ameliorative morphology, charge dynamics, and other effects, by which optimal device efficiency can be achieved. Moreover, the introduction of a FA into a binary device based on NFA may help to simultaneously improve the performance and stability of a device, and thus improve the feasibility of commercialization.…”

Section: Other Effectsmentioning

confidence: 97%

“…Photovoltaic parameters of ternary OPV containing non-fullerene as the host acceptor (A1) and fullerene as the guest acceptor (A2) as well as non-fullerenebased binary OPV. of using ternary devices involving a FA and an NFA is very promising 109. …”

mentioning

confidence: 99%

High-Performance Ternary Organic Solar Cells Enabled by Synergizing Fullerene and Non-fullerene Acceptors

Jiang

Zhu

2021

Organic Materials

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With the development of the non-fullerene acceptor (NFA), the use of ternary organic photovoltaic devices based on a fullerene acceptor and a NFA is now widespread, and the merits of both acceptor types can be fully utilized. However, the effective approach of enhancing device performance is adjusting the charge dynamics and the thin-film morphology of the active layer via introducing the second acceptor, which would significantly impact the open-circuit voltage, the short-circuit current, and the fill factor, thus strongly affecting device efficiency. The functions of the second acceptor in a ternary organic solar cell with a fullerene acceptor and a NFA are summarized here. These include a broader absorption spectrum; formation of a cascade energy level or energy transfer; modified thin-film morphology including phase separation, effects on crystallinity, size, and purity of domain; and vertical distribution along with improved charge dynamics like exciton dissociation and charge transport, collection, and recombination. Then, we discuss the hierarchical morphology in ternary solar cells may benefit device performance and the outlook of the ternary device.

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Spin-coated 10.46% and blade-coated 9.52% of ternary semitransparent organic solar cells with 26.56% average visible transmittance

Cited by 31 publications

References 57 publications

Low Band Gap Conjugated Semiconducting Polymers

Low Band Gap Conjugated Semiconducting Polymers

Latest Progress on Photoabsorbent Materials for Multifunctional Semitransparent Organic Solar Cells

High-Performance Ternary Organic Solar Cells Enabled by Synergizing Fullerene and Non-fullerene Acceptors

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