Browsing by Author "Liu, Quan"
Now showing items 1-13 of 13
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A two-resonance tapping cavity for an optimal light trapping in thin-film solar cells
(2017-09-20)
Article
Open AccessAn optimal photon absorption in thin film photovoltaic technologies can only be reached by effectively trapping the light in the absorber layer provided a considerable portion of the photons is rejected or scattered out ... -
An extremely thin and robust interconnecting layer providing 76% fill factor in a tandem polymer solar cell architecture
(Royal Society of Chemistry, 2015-04-17)
Article
Open AccessWe report a thin and robust interconnecting layer (ICL) for polymer tandem solar cells. This ICL shows low absorption, good electrical contacts, large work function contrast and robustness. Its use yields tandem cells with ... -
Circumventing UV light induced nano-morphology disorder to achieve long lifetime PTB7-Th:PCBM based solar cells
(Wiley, 2017-07-17)
Article
Open AccessLarge area flexible electronics rely on organic or hybrid materials prone to degradation limiting the device lifetime. For many years, photo-oxidation has been thought to be one of the major degradation pathways. However, ... -
Circumventing UV light induced nanomorphology disorder to achieve long lifetime PTB7-Th:PCBM based solar cells
(2017-07-17)
Article
Open AccessLarge area flexible electronics rely on organic or hybrid materials prone to degradation limiting the device lifetime. For many years, photo-oxidation has been thought to be one of the major degradation pathways. However, ... -
Double resonant character in an optical cavity for high performance and stable polymer solar cells
(Universitat Politècnica de Catalunya, 2018-03-23)
Doctoral thesis
Open Access
Covenantee: Karlsruher Institut für TechnologieSolution-processed thin film solar cells emerged as very promising photovoltaic technologies suitable for a low cost roll-to-roll upscale production. Such thin film character also ensures lightweight and flexibility for ... -
Ergodic Light Propagation in a Half-Cylinder Photonic Plate for Optimal Absorption in Perovskite Solar Cells
(2019-05-17)
Article
Open AccessIn an optical medium slab, a randomization of the interfaces will lead to an ergodic light propagation, implying a kind of light trapping that sets an upper limit for a broadband absorption enhancement factor. However, in ... -
Inverse Optical Cavity Design for Ultrabroadband Light Absorption Beyond the Conventional Limit in Low-Bandgap Nonfullerene Acceptor–Based Solar Cells
(2019-05-23)
Article
Open AccessIn the subwavelength regime, several nanophotonic configurations have been proposed to overcome the conventional light trapping or light absorption enhancement limit in solar cells also known as the Yablonovitch limit. It ... -
Light harvesting at oblique incidence decoupled from transmission in organic solar cells exhibiting 9.8% efficiency and 50% visible light transparency
(2020-01-01)
Article
Open AccessFor many years, it has been recognized that potential organic photovoltaic cells must be integrated into elements requiring high transparency. In most of such elements, sunlight is likely to be incident at large angles. ... -
Monolithic CIGS-Perovskite Tandem Cell for an Optimal Light Harvesting Without Current Matching
(ACS, 2017-03-23)
Article
Open AccessWe present a novel monolithic architecture for optimal light harvesting in multijunction thin film solar cells. In the configuration we consider, formed by a perovskite (PVK) cell overlying a CIGS cell, the current extracted ... -
Monolithic CIGS-Perovskite tandem cell for optimal light harvesting without current matching
(2017-03-22)
Article
Open AccessWe present a novel monolithic architecture for optimal light harvesting in multijunction thin film solar cells. In the configuration we consider, formed by a perovskite (PVK) cell overlying a CIGS cell, the current extracted ... -
Neutral water splitting catalysis with a high FF triple junction polymer cell
(2016-04-15)
Article
Open AccessWe report a photovoltaics-electrochemical (PV-EC) assembly based on a compact and easily processable triple homojunction polymer cell with high fill factor (76%), optimized conversion efficiencies up to 8.7%, and enough ... -
UV-induced oxygen removal for photostable, high-efficiency PTB7-Th:PC71BM photovoltaic cells
(2016-10-03)
Article
Open AccessSolution-processed ZnO sol–gel or nanoparticles are widely used as the electron-transporting layer (ETL) in optoelectronic devices. However, chemisorbed oxygen on the ZnO layer surface has been shown to be detrimental for ... -
Water splitting for hydrogen chemisorption in graphene oxide dynamically evolving to a graphane character lattice
(2019-11-01)
Article
Open AccessGraphane offers a safe and high capacity hydrogen storage. Unfortunately, production of graphane directly from its parent material graphene requires breaking the extended p bond, implying either harsh chemical environments ...
