A5060459662- Perovskite Materials and Applications
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Organic Electronics and Photovoltaics
- solar cell performance optimization
- Advanced battery technologies research
- Thin-Film Transistor Technologies
- Photovoltaic System Optimization Techniques
- Semiconductor Quantum Structures and Devices
- Photovoltaic Systems and Sustainability
- Silicon and Solar Cell Technologies
- Solid-state spectroscopy and crystallography
Nice Solar Energy (Germany)
2019-2020
Friedrich-Alexander-Universität Erlangen-Nürnberg
2014-2019
Centre for Materials for Electronics Technology
2016-2018
Bavarian Center for Applied Energy Research
2016
Perovskite hybrid solar cells (pero-HSCs) were demonstrated to be among the most promising candidates within emerging photovoltaic materials with respect their power conversion efficiency (PCE) and inexpensive fabrication. Further PCE enhancement mainly relies on minimizing interface losses via engineering quality of perovskite film. Here, we demonstrate that PCEs pero-HSCs are significantly increased 14.0% by incorporation a solution-processed perylene–diimide (PDINO) as cathode layer...
A scalable, hysteresis-free and planar architecture perovskite solar cell is presented, employing a flame spray synthesized low-temperature processed NiO (LT-NiO) as hole-transporting layer yielding efficiencies close to 18%. Importantly, it found that LT-NiO boosts the limits of open-circuit voltages toward an impressive non-radiative voltage loss 0.226 V only, whereasPSS suffers from significant large recombination losses.
The successful application of an effective dipolar interface layer based on amine functionalized fullerene derivative (DMAPA-C60) is reported for the perovskite and organic photovoltaic devices. incorporation DMAPA-C60 facilitates a favorable energy level alignment, results in enhanced mobility-lifetime (µt) product. As service to our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed may be re-organized online delivery, but...
Here we demonstrate a maximum AVT of 46% with an efficiency 3.6%, which is the highest combination and transparency for full device stack to date.
We present measured imputed efficiencies for 4-terminal perovskite–silicon solar cells of: 26.7% and 25.2% PERL–perovskite IBC–perovskite, respectively.
While perovskite-based semitransparent solar cells for window applications show competitive levels of transparency and efficiency compared to organic photovoltaics, the color perception perovskite films is highly restricted because band gap engineering results in losses power conversion efficiencies. To overcome limitation visual aesthetics, we combined with dielectric mirrors. This approach enables one tailor device appearance almost any desired simultaneously offers additional light...
A power conversion efficiency of 11.8% is demonstrated for planar perovskite solar cell based on acid water-free poly(3,4-ethylenedioxythiophene) (PEDOT) as the hole-transporting layer. This further improved to 14.2% using a pH neutralized PEDOT, which reduces sub-gap defects at surface perovskite. All active layers reported are solution-processed temperatures below 140 °C making it compatible with roll-to-roll production. As service our authors and readers, this journal provides supporting...
With the aim of fully utilizing low processing temperatures perovskite solar cells, significant progress in replacing high temperature processed TiO 2 by various low‐temperature solution electron transporting layers (LT‐ETLs) was recently reported. Here, recent development LT‐ETLs for regular planar structure which is essential achieving efficiency parallel to avoiding hysteresis, reviewed. In addition, application a novel hysteresis‐free cells our laboratory briefly discussed. By...
The multi-junction concept is the most relevant approach to overcome Shockley-Queisser limit for single-junction photovoltaic cells. record efficiencies of several types solar technologies are held by series-connected tandem configurations. However, stringent current-matching criterion presents primarily a material challenge and permanently requires developing processing novel semiconductors with desired bandgaps thicknesses. Here we report generic alleviate this limitation. By integrating...
Perovskite solar cells based on CH 3 NH PbBr with a band gap of 2.3 eV are attracting intense research interests due to their high open‐circuit voltage ( V oc ) potential, which is specifically relevant for the use in tandem configuration or spectral splitting. Many efforts have been performed optimize cells; however, limiting (namely, radiative : oc,rad and corresponding Δ (the difference between mechanism still unknown. Here, average 1.50 maximum value 1.53 at room temperature achieved...
Thin‐film solar cell based on hybrid perovskites shows excellent light‐to‐power conversion efficiencies exceeding 22%. However, the mixed ionic‐electronic semiconductor perovskite exhibits many unusual properties such as slow photocurrent instabilities, hysteresis behavior, and low‐frequency giant capacitance, which still question us so far. This study presents a direct surface functionalization of transparent conductive oxide electrode with an ultrathin ≈2 nm thick phosphonic acid...
We demonstrate an innovative solution-processing fabrication route for organic and perovskite solar modules.
Abstract A multipurpose interconnection layer based on poly(3,4‐ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT:PSS), and d ‐sorbitol for monolithic perovskite/silicon tandem solar cells is introduced. The of independently processed silicon perovskite subcells a simple add‐on lamination step, alleviating common fabrication complexities devices. It demonstrated experimentally theoretically that PEDOT:PSS an ideal building block manipulating the mechanical electrical...
Solution-processed oxo-functionalized graphene is used to substitute hydrophilic PEDOT:PSS as an anode interfacial layer for perovskite solar cells. The resulting devices exhibit a reasonable PCE of 15.2% and improved stability.
The efficiency of perovskite-based tandem solar cells and the respective gain over single-junction operation bottom cell strongly depend on performance component cells. Thus, a fair comparison reported top is difficult. We therefore compute for combination several semitransparent perovskite crystalline silicon or chalcopyrite from literature. focus four-terminal configurations but also estimate discuss differences between four- two-terminal configurations. For each cell, we thereby determine...
In this report, we show that hyperspectral high-resolution photoluminescence mapping is a powerful tool for the selection and optimization of laser ablation processes used patterning interconnections subcells on Cu(Inx,Ga1−x)Se2 (CIGS) modules. way, in-depth monitoring material degradation in vicinity region identification underlying mechanisms can be accomplished. Specifically, by analyzing standard P1 line ablated before CIGS deposition, reveal an anomalous emission-quenching effect...
Correction for ‘Balancing electrical and optical losses efficient 4-terminal Si-perovskite solar cells with solution processed percolation electrodes’ by César Omar Ramírez Quiroz <italic>et al.</italic>, <italic>J. Mater. Chem. A</italic>, 2018, <bold>6</bold>, 3583–3592.
While the development of perovskite-based semitransparent solar cells with competitive levels transparency and efficiency offer a promising perspective towards building integrated photovoltaics, color perception perovskite films is limited visual aesthetics, compromising their applicability to facades windows. In present work, we develop technique grow crystalline, ultrathin through solvent-solvent extraction process featuring full crystallization within few seconds at RT under 45%RH...