Self-contained optical enhancement film for printed photovoltaics

Mayer, Jan; Gallinet, Benjamin; Offermans, Ton; Zhurminsky, Igor L.; Ferrini, R.

doi:10.1016/j.solmat.2017.01.015

Cited by 8 publications

(5 citation statements)

References 50 publications

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“…186,200 This has also been done with extremely thin film polymer substrates. 200 Microstructured light couplers may also be formed as external elements, [201][202][203][204] in the form of periodic textures, diffraction gratings or aperiodic diffractive elements. 205,206 Colloidal photonic crystals have been used for large area printed OPV modules.…”

Section: Meso-and Microscopic Geometry Design For Light Incouplingmentioning

confidence: 99%

Status report on emerging photovoltaics

Anctil,

Beattie,

Case

et al. 2023

J. Photon. Energy

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This report provides a snapshot of emerging photovoltaic (PV) technologies. It consists of concise contributions from experts in a wide range of fields including silicon, thin film, III-V, perovskite, organic, and dye-sensitized PVs. Strategies for exceeding the detailed balance limit and for light managing are presented, followed by a section detailing key applications and commercialization pathways. A section on sustainability then discusses the need for minimization of the environmental footprint in PV manufacturing and recycling. The report concludes with a perspective based on broad survey questions presented to the contributing authors regarding the needs and future evolution of PV.

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Section: Meso-and Microscopic Geometry Design For Light Incouplingmentioning

confidence: 99%

Status report on emerging photovoltaics

Anctil,

Beattie,

Case

et al. 2023

J. Photon. Energy

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“…• spectrometers, fluorescence biosensors, solar cells and photodetectors, devices for signal processing, polarizers and wave plates, active tunable filters and optical security [288] • SWIR and NIR immersed gratings for high resolution spectroscopy [289] • blazed grating on a convex substrate for the spectrograph as a light dispersing element applied for a telescope [290] • zero-order filters containing a subwavelength grating with a period below 400 nm, exhibiting a strong color in specular reflection which changes depending on the viewing angle [291] • filters for image sensors based on subwavelength silver nanowires capable to change the output color by simple rotation of a polarizer [292]. These compact optical filters can be used for security, magneto-optic, polarizing detectors and sensing applications [293] • photonic nanostructures embedded in an organic PV device providing an efficiency enhancement [294] • the 1st version HoloLens Mixed Reality headset applies RGB waveguides with slanted sub-wavelength gratings acting as in-and out-couplers operating both in transmission and reflection modes [295] • reflective grating for a top laser mirror having a high transmittance for a pumping beam • compressor based on gratings for femto and attosecond laser pulses generation • holographic structured steel inserts with micro-and nanometer scale surface modification allowing the injection molding of plastics with grating periods down to 270 nm on non-planar surfaces tested on a real production line with a record production up to 3 million pieces • gratings as a light management system for LEDs [296] • gratings in hard dielectric and semiconductor materials required by specific and advanced optical systems • crossed grating used as a mask on Si3N4 for a further DRIE process for a nanomembrane fabrication • combining a perpendicular oriented subwavelength grating with fluorescent materials creates a security feature with a well distinguishable contrast change at UV light excitation [297].…”

Section: Statusmentioning

confidence: 99%

Roadmap on holography

Sheridan¹,

Kostuk²,

Gil³

et al. 2020

J. Opt.

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“…Similar as for inorganic solar cells, many different types of optical in‐coupling components have been studied for achieving high‐performance OSCs since 2000 . For instance, photonic crystals, surface patterning, surface plasmon polariton (SPP) resonances, and scattering layers . In the following sections, periodic structures, scattering, and multijunction devices will be discussed as means of achieving an increased light absorption in organic solar cells.…”

Section: Optical In‐couplingmentioning

confidence: 99%

Optical In‐Coupling in Organic Solar Cells

2018

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thus offering an environmentally friendly approach. Furthermore, the use of simple low-temperature processing techniques makes it a potentially low-cost technology. However, efficiency and stability are so far lacking, hampering the full exploitation of the potential this technology has in these new applications. After the demonstration of the first reasonably performing organic solar cell by Tang [1] achieving approximately 1% efficiency, much effort has been put into improving these values. Nowadays, efficiencies well beyond 10%, and even over 13% have been reached, [2,3] however, with hard-to-synthesize polymers that so far have not shown sufficient stability for practical applications.Closer to commercial exploitation, solar cells based on oligomers (also termed "small molecules") and the material class used by Tang et al. [1] are investigated and introduced in their pioneering papers. [4][5][6][7][8][9][10][11][12][13][14][15] This material class can be either deposited by vacuum evaporation or solution processing. [16][17][18][19][20][21] The advantage of vacuum evaporation is that very pure layers without solvent residuals are produced, which is favorable for a higher stability of the cells. Also, they allow several cells to be very easily integrated into stacked multijunction devices. [22] With multijunction cells, Heliatek has reached an efficiency of 13.2% using proprietary materials that allow long lifetimes and can be readily manufactured. [23] Single-junction devices with similar published materials achieve above 8% efficiency [24] and above 10% in single-junction and tandem devices, respectively. [25] While these values are much improved as compared to the pioneering work of Tang, there is still a large gap to be closed to reach efficiencies comparable to silicon solar cells and other inorganic PV technologies.Here, first we will address limitations of organic solar cells, such as short exciton diffusion length, voltage, and transport problems. After that, various approaches to solve these challenges will be introduced. These include the bulk heterojunction, multijunction devices, and periodically patterned structures on substrates or active layers. Among these approaches, we focus on optical in-coupling, which allows more photons to be funneled into the thin organic active layers, yielding higher efficiencies. Limitations of Organic Solar CellsAlthough organic solar cells have huge potential and acceptable power conversion efficiencies (PCEs), they still have limitations caused by a short exciton diffusion length, charge transport, and low open-circuit voltage (V oc ). In this section, we briefly summarize why OSCs lack in efficiency, and optical in-coupling is required to improve the performance.Organic photovoltaics have many unique properties, such as flexibility, transparency, and low weight, which allows novel applications to be addressed. A remaining challenge is to increase the power conversion efficiencies into the range that is offered by conventional inorganic photovoltaics. Due to the li...

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Self-contained optical enhancement film for printed photovoltaics

Cited by 8 publications

References 50 publications

Status report on emerging photovoltaics

Status report on emerging photovoltaics

Roadmap on holography

Optical In‐Coupling in Organic Solar Cells

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