ADVERTISEMENT RETURN TO ISSUEPREVEnergy FocusNEXTPhotovoltaics Reaching for the Shockley–Queisser LimitBruno Ehrler*Bruno EhrlerCenter Nanophotonics, NWO-Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands*[email protected]More by Bruno Ehrlerhttp://orcid.org/0000-0002-5307-3241, Esther Alarcón-LladóEsther Alarcón-LladóCenter NetherlandsMore Alarcón-Lladóhttp://orcid.org/0000-0001-7317-9863, Stefan W. TabernigStefan TabernigCenter Tabernig, Tom VeekenTom VeekenCenter...

Abstract In this work, we present the fabrication and analysis of a wafer‐bonded GaInP/GaInAsP//Si triple‐junction solar cell with 36.1% conversion efficiency under AM1.5g spectral illumination. The new design presents an improvement over previous III‐V//Si cells by implementation rear‐heterojunction for middle cell. Furthermore, advanced metallodielectric rear‐side grating was used light trapping enhancement in silicon bottom that increased subcell current 1.4 mA/cm 2 . external radiative...

Multijunction solar cells provide a path to overcome the efficiency limits of standard silicon by harvesting broader range spectrum more efficiently. However, Si-based multijunction architectures are hindered incomplete in near-infrared (near-IR) spectral as Si subcells have weak absorption close band gap. Here, we introduce an integrated near-field/far-field light trapping scheme enhance silicon-based near-IR range. To achieve this, design nanopatterned diffractive silver back-reflector...

Singlet fission is one of the most promising routes to overcome single-junction efficiency limit for solar cells. fission-enhanced silicon cells are desirable implementation, but transfer triplet excitons, product singlet fission, into has proved be very challenging. Here, we report on an all optical measurement technique detection exciton quenching at semiconductor interfaces, a necessary requirement or charge transfer. The method relies growth individual, single-crystal islands material...

We design an optically resonant bulk heterojunction solar cell to study optoelectronic properties of nanostructured p-n junctions. The nanostructures yield strong light-matter interaction as well distinct charge-carrier extraction behavior, which together improve the overall power conversion efficiency. demonstrate high-resolution substrate conformal soft-imprint lithography technology in combination with state-of-the art ZnO nanoparticles create a nanohole template electron transport layer....

One way for solar cell efficiencies to overcome the Shockley–Queisser limit is downconversion of high-energy photons using singlet fission (SF) in polyacenes like tetracene (Tc). SF enables generation multiple excitons from photons, which can be harvested combination with Si. In this work, we investigate use lead sulfide quantum dots (PbS QDs) a band gap close Si as an interlayer that allows Förster resonant energy transfer (FRET) Tc Si, process would spin-forbidden without intermediate QD...

A scalable selective-area electrochemical method is reported for the fabrication of interconnected metal nanostructures. In this work, silver nanowire grids application transparent electrodes explored. The presented based on a through-the-mask electrodeposition method, where mask made by using substrate conformal imprint lithography. We find that nucleation density nanoparticles key parameter successful homogeneous void-free filling template. independently controlled nuclei and their growth...

Shading losses are a longstanding obstacle in photovoltaic devices, particularly concentrator photovoltaics, where the tradeoff between shading and resistive limits concentration at which highest power conversion efficiency is achieved to values far below capabilities of optics. Here, we demonstrate simple scalable fabrication method that enables large front metal coverage while keeping minimum. Soft-imprint lithography used create trenches transparent polymer above contacts, enabling...

Crystalline Si solar cells based on thin wafers, with thicknesses in the range of 5–50 μm, can find applications a wide markets where flexibility and bendability are important. For these cells, avoiding standard macroscopic texture is desirable to increase structural integrity. Herein, nanopatterned SiN x antireflection (AR) coating that consists 174 nm‐radius 118 nm‐high nanodisks arranged square lattice (59 nm) layer introduced. This geometry combines Fabry–Pérot AR forward scattering by...

Bifacial semitransparent ultrathin Cu(In,Ga)Se 2 solar cells (BSTUT CIGSe SCs) enable efficient usage of light and reduced raw material. By inserting the SiO nanoparticles (NPs) at CIGSe/back–contact interface, this work optimizes performance BSTUT SCs under front especially rear illumination, which has not been studied much so far. For with NPs, short‐circuit current density increases by 4.1–4.4 mA cm −2 for 6.4–7.4 illumination. In addition, a significantly improved fill factor...

The optical properties of periodic metallic nanoparticle lattices have found many exciting applications. Indium is an emerging plasmonic material that offers to extend the applications given by gold and silver from visible ultraviolet spectral range, with in imaging, sensing, lasing. Due high vapor pressure/low melting temperature indium, nanofabrication ordered nanoparticles nontrivial. In this work, we show potential selective area electrochemical deposition generate large-area pillars for...

Integrated near-field/far-field light scattering design creates 36,1% efficient Si/III-V multijunction solar cellAndrea Cordaro a, Ralph Muller b, Stefan Tabernig Nico Tucher Patrick Schygulla Oliver Hohn Benedikt Blasi Albert Polman aa Center for Nanophotonics, AMOLF, Science Park, 104, Amsterdam, Netherlandsb Fraunhofer Institute Solar Energy Systems ISE, Germany.International Conference on Hybrid and Organic PhotovoltaicsProceedings of International Photovoltaics (HOPV24)València, Spain,...

Single-junction Si solar cell efficiencies are intrinsically limited to 29.4%. One common strategy overcome this fundamental issue is combine multiple semiconductor materials with different bandgaps in a multi-junction configuration so that light effectively absorbed over broad range the spectrum. In particular, combination of III-V top (GaInP/GaAs) wafer-bonded planar bottom led recently an overall record efficiency 34.1%. The tandem design could be further improved if absorption near...

One way for solar cell efficiencies to overcome the Shockley-Queisser limit is downconversion of high-energy photons using singlet fission (SF) in polyacenes like tetracene (Tc). SF enables generation multiple excitons from which can be harvested combination with Si. In this work we investigate use lead sulfide quantum dots (PbS QDs) a band gap close Si as an interlayer that allows Foerster Resonant Energy Transfer (FRET) Tc Si, process would spin-forbidden without intermediate QD step. We...

We derive the photovoltaic conversion efficiency limit for two-terminal tandem solar cells with a perovskite top cell and silicon bottom an embedded spectrum splitter. For large-bandgap top-cells, splitter strongly enhances because of enhanced light absorption trapping. A Lambertian spectral shows significantly improved effect compared planar find ideal enhancement 500-nm thick 6% absolute bandgaps above 1.75 eV. Vice versa, use geometry enables thinner cell. Using experimental parameters...

Zinc phosphide (Zn3P2) has been lauded as a promising solar absorber material due to its functional properties and the abundance of zinc phosphorous. In last 4 decades, there not any significant improvement in efficiencies Zn3P2-based cells. This is vastly limited understanding how tune optoelectronic properties. Recently, progress made growth characterization material, which shed light on potential. this study, we report an energy conversion efficiency high 4.4 % for cell based...

Multi-junction solar cells provide a path to overcome the efficiency limits of standard silicon by harvesting more efficiently broader range spectrum. However, Si-based multi-junction architectures are hindered incomplete in near-infrared (near-IR) spectral range, as Si sub-cells have weak absorption close band gap. Here, we introduce an integrated near-field/far-field light trapping scheme enhance silicon-based near-IR range. To achieve this, design nanopatterned diffractive silver...

Transparent conducting electrodes (TCEs) are essential in many optoelectronic devices including solar cells, sensors, displays, and LEDs. The use of transparent metal oxide layers, particular Indium tin (ITO), is the most common used approach. However, ITO comes with numerous drawbacks such as relatively rarity indium hence high cost, fragility, strong UV absorption relative sheet resistance. An exciting alternative TCE interconnected metallic nanowires, where their sub-wavelength...

Indium is an emerging plasmonic material that offers to extend the applications given by gold and silver from visible ultraviolet spectral range, with in imaging, sensing, lasing. However, due high-vapor pressure/low melting temperature of indium, nanofabrication pre-defined metallic indium nanostructures non-trivial. In this work, we show potential selective area electrochemical deposition for manufacturing large-area arrays pillars, which can be used applications. We combine...

A scalable selective area electrochemical method is reported for the fabrication of interconnected metal nanostructures. In this work, silver nanowire grids application transparent electrodes explored. The presented based on a through-the-mask electrodeposition method, where mask made using substrate conformal imprint lithography. We find that nucleation density nanoparticles key parameter successful homogenous void-free filling template. independently control nuclei and their growth by...

We derive the photovoltaic conversion efficiency limit for two-terminal tandem solar cells with a perovskite top cell and silicon bottom an embedded spectrum splitter. For large-bandgap top-cells splitter strongly enhances because of enhanced light absorption trapping. A Lambertian spectral shows significantly improved effect compared to planar splitter: we find ideal enhancement in thermodynamic 500 nm thick 6% absolute bandgaps above 1.75 eV. Vice versa, use geometry enables thinner cell....

One of the most interesting - but often underappreciated absorber materials for solar cells are PbS quantum dot (QD) layers. In principle, tuneable bandgap, that derives from confinement, together with strong absorption, which allows thin and flexible layers, as well ease fabrication in form solution deposition, each arguments thin-film-QD layer based cells. However, so far, those advantages have been met notable disadvantages hindered a faster more enthusiastic uptake QD layers scientific...

PbS/CdS core-shell quantum dots (QD) with diameters of <4 nm have previously only been demonstrated the formation a monolayer pure phase CdS shell through cation exchange. The lattice mismatch between zincblende and rocksalt PbS core limits optimal thickness to 1 prevent defect at coreshell interface in order maximize photoluminescence yield (PLQY) lifetime. This work demonstrates for first time Cd-rich Pb <inf xmlns:mml="http://www.w3.org/1998/Math/MathML"...