Results 31 to 40 of about 2,237,278 (390)

Organic / IV, III-V Semiconductor Hybrid Solar Cells

open access: yesEnergies, 2010
We present a review of the emerging class of hybrid solar cells based on organic-semiconductor (Group IV, III-V), nanocomposites, which states separately from dye synthesized, polymer-metal oxides and organic-inorganic (Group II-VI) nanocomposite ...
Pang-Leen Ong, Igor A. Levitsky
doaj   +1 more source

Single-layered organic photovoltaics with double cascading charge transport pathways: 18% efficiencies

open access: yesNature Communications, 2020
The chemical structure of donors and acceptors limit the power conversion efficiencies achievable with active layers of binary donor-acceptor mixtures. Here, using quaternary blends, double cascading energy level alignment in bulk heterojunction organic ...
M. Zhang   +14 more
semanticscholar   +1 more source

Influence of static disorder of charge transfer state on voltage loss in organic photovoltaics

open access: yesNature Communications, 2021
Spectroscopic measurements of charge transfer (CT) states provide valuable insight into the voltage losses in organic photovoltaics (OPVs). Correct interpretation of CT-state spectra depends on knowledge of the underlying broadening mechanisms, and the ...

semanticscholar   +1 more source

Multiscale approaches to high efficiency photovoltaics [PDF]

open access: yes, 2015
While renewable energies are achieving parity around the globe, efforts to reach higher solar cell efficiencies becomes ever more difficult as they approach the limiting efficiency.
Connolly, J. P.   +5 more
core   +1 more source

Recent Progress of Organic Photovoltaics with Efficiency over 17%

open access: yesEnergies, 2021
The power conversion efficiency (PCE) of organic photovoltaics (OPVs) has exceeded 18% with narrow bandgap, non-fullerene materials Y6 or its derivatives when used as an electron acceptor. The PCE improvement of OPVs is due to strong photon harvesting in
Xuelin Wang   +6 more
semanticscholar   +1 more source

Conjugated polymers as functional hole selective layers in efficient metal halide perovskite solar cells

open access: yesAIMS Materials Science, 2017
Interface engineering is still an open question to be solved in the emerging field of metal halide perovskite solar cells. Although impressive advances have been already made in controlling the composition and the quality of the active layer, stability ...
Silvia Colodrero
doaj   +1 more source

19.2% Efficient InP Heterojunction Solar Cell with Electron-Selective TiO2 Contact. [PDF]

open access: yes, 2014
We demonstrate an InP heterojunction solar cell employing an ultrathin layer (∼10 nm) of amorphous TiO2 deposited at 120 °C by atomic layer deposition as the transparent electron-selective contact.
Battaglia, Corsin   +8 more
core   +2 more sources

Wide-Bandgap Halide Perovskites for Indoor Photovoltaics

open access: yesFrontiers in Chemistry, 2021
Indoor photovoltaics (IPVs) are receiving great research attention recently due to their projected application in the huge technology field of Internet of Things (IoT).
Lethy Krishnan Jagadamma, Shaoyang Wang
doaj   +1 more source

Organic Photovoltaics: Where Are We Headed? [PDF]

open access: yesSolar RRL, 2021
Organic photovoltaics (OPV) is an emerging technology that combines semi‐transparency and flexibility in lightweight, ultrathin solar modules. The record power conversion efficiencies for OPV are approaching 20%, with reported lifetimes ranging from months to several years. Despite these attributes, OPV has not yet been commercialized on a large scale.
Floris Max van der Staaij   +2 more
openaire   +3 more sources

Asymmetric Electron Acceptors for High‐Efficiency and Low‐Energy‐Loss Organic Photovoltaics

open access: yesAdvances in Materials, 2020
Low energy loss and efficient charge separation under small driving forces are the prerequisites for realizing high power conversion efficiency (PCE) in organic photovoltaics (OPVs).
Shuixing Li   +11 more
semanticscholar   +1 more source

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