Tennyson nanoimaging of open circuit voltage in photovoltaic devices

Tennyson et al. studied various photovoltaic devices ranging from epitaxial GaAs to polycrystalline copper indium gallium diselenide using KPFM. They resolved the open-circuit voltage (V OC) with a spatial resolution of < 100 nm to suggest the V OC as a critical figure of merit that dictates
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Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices

Sep 1, 2015· The open circuit voltage (V OC ) is a critical and common indicator of solar cell performance as well as degradation, for panel down to lab-scale photovoltaics. Detecting V

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Experimental Proof-of-Concept of Heliosea: A Novel Marine

Jan 1, 2023· Nanoimaging of Open-Circuit Voltage in Photovoltaic Devices. Elizabeth Tennyson; Joseph L Garrett A novel imaging platform to determine the open-circuit voltage of solar cells with

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Local VOC Measurements by Kelvin Probe Force

Dec 30, 2019· This work focuses on the extraction of the open circuit voltage (VOC) on photovoltaic nanowires by surface photovoltage (SPV) based on Kelvin probe force microscopy (KPFM) measurements. In a first approach, P-I-N

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Nanoimaging of Open-Circuit Voltage in Photovoltaic Devices

A novel imaging platform to determine the open-circuit voltage of solar cells with nanoscale spatial resolution is presented. Here, a variant of illuminated Kelvin probe force microscopy can be imp...

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Elizabeth TENNYSON | Doctor of Philosophy | University of

Nanoimaging of Open-Circuit Voltage in Photovoltaic Devices. Article. Sep 2015. Elizabeth Tennyson. Joseph L Garrett. Jesse A. Frantz. [...] Marina Leite. A novel imaging platform...

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The origin of the open-circuit voltage in polyfluorene-based

The influence of device structure on the open-circuit voltage of polyfluorene-based photovoltaic devices has been investigated. Bilayers of hole- and electron-accepting polyfluorenes have been fabricated using an aqueous "float-off" lamination technique and subsequently incorporated into organic photovoltaic devices with a range of cathodes and anodes. A scaling of the open

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Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices

eter- and nanoscale structured PV device, assessing varia-tions in V oc with nanoscale resolution and spatially resolving where recombination occurs within the material can poten-tially change

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Flexible kesterite thin-film solar cells under stress

Nov 1, 2022· Moreover, the loss of local open-circuit voltage (V OC) in the bending mode was investigated by the carrier excitation mechanism. Furthermore, the degradation of photovoltaic parameters due to the

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Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices

For most photovoltaic (PV) devices, the record short-circuit cur-rent density is near its theoretical limit; however, achieving a large open-circuit voltage has proven diffi cult for nearly all photo voltaic technologies. [ 1,2 ]

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Nanoimaging of Open-Circuit Voltage in Photovoltaic Devices

Sep 1, 2015· This work focuses on the extraction of the open circuit voltage (VOC) on photovoltaic nanowires by surface photovoltage (SPV) based on Kelvin probe force

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Sci-Hub | Nanoimaging of Open-Circuit Voltage in Photovoltaic Devices

Tennyson, E. M., Garrett, J. L., Frantz, J. A., Myers, J. D., Bekele, R. Y., Sanghera, J. S., Leite, M. S. (2015). Nanoimaging of Open-Circuit Voltage in Photovoltaic Devices. Advanced Energy Materials, 5(23), 1501142. doi:10.1002/aenm.201501142

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Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices

Sep 1, 2015· The open circuit voltage (V OC ) is a critical and common indicator of solar cell performance as well as degradation, for panel down to lab-scale photovoltaics. Detecting V OC at the nanoscale is Expand

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Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices

Sep 24, 2015· A novel imaging platform to determine the open‐circuit voltage of solar cells with nanoscale spatial resolution is presented. Here, a variant of illuminated Kelvin probe force microscopy can be implemented to quantify local variations in the voltage of different solar cells.

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Nanospectroscopy of materials for renewable energy

Nov 5, 2015· I will show how we image the functionality of photovoltaic devices using nanospectroscopy by scanning probe microscopies [1-3]. In particular, we apply illuminated-Kelvin probe force microscopy to quantify and spatially resolve the open-circuit voltage (Voc) of solar cells with spatial resolution <100 nm.

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Marina LEITE | Assistant Professor | PhD Physics

Perovskite semiconductors are an exciting class of materials due to their promising performance outputs in photovoltaic devices. To boost their efficiency further, researchers introduce additives

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Solar Cells: Nanoimaging of Open‐Circuit Voltage in Photovoltaic

Semantic Scholar extracted view of "Solar Cells: Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices (Adv. Energy Mater. 23/2015)" by E. Tennyson et al.

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Nanoimaging of Open-Circuit Voltage in Photovoltaic Devices

Sep 1, 2015· This work focuses on the extraction of the open circuit voltage (VOC) on photovoltaic nanowires by surface photovoltage (SPV) based on Kelvin probe force microscopy (KPFM) measurements.

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Advanced Energy Materials: Vol 5, No 23

Dec 9, 2015· The open-circuit voltage evolution and charge transfer state interfaces in ternary organic photovoltaic blends are investigated using several model systems. The changes in subgap spectra from energetic disorder and increased population of higher energy states are analyzed and the lowest charge transfer state distribution is observed to shift due to local

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Jeremy MUNDAY | University of Maryland, College Park, MD

In article number 1501142, Marina S. Leite and co-workers report the use of an imaging platform to map open-circuit voltage in solar cells with a lateral spatial resolution of <100 nm that can be

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Dr Elizabeth Tennyson | Department of Chemical

Dr Elizabeth (Beth) Tennyson is a senior research associate University of Cambridge''s Chemical Engineering and Biotechnology Department within the Cambridge Centre for Inclusive Innovation.

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Sci-Hub | Nanoimaging of Open-Circuit Voltage in Photovoltaic

Tennyson, E. M., Garrett, J. L., Frantz, J. A., Myers, J. D., Bekele, R. Y., Sanghera, J. S., Leite, M. S. (2015). Nanoimaging of Open-Circuit Voltage in Photovoltaic Devices. Advanced Energy

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Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices

A novel imaging platform to determine the open‐circuit voltage of solar cells with nanoscale spatial resolution is presented. Here, a variant of illuminated Kelvin probe force microscopy can be implemented to quantify local variations in the voltage of different solar cells. The new metrology can be applied to any optoelectronic device, and works in ambient environments.

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Dr Elizabeth Tennyson | Department of Chemical Engineering and

Dr Elizabeth (Beth) Tennyson is a senior research associate University of Cambridge''s Chemical Engineering and Biotechnology Department within the Cambridge Centre for Inclusive Innovation.

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Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices

eter- and nanoscale structured PV device, assessing varia-tions in V oc with nanoscale resolution and spatially resolving where recombination occurs within the material can poten-tially change the pathway for designing higher performance devices. Imaging methods based on atomic force microscopy (AFM)

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Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices

A novel imaging platform to determine the open-circuit voltage of solar cells with nanoscale spatial resolution is presented. Here, a variant of illuminated Kelvin probe force microscopy can be imp...

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Enhancement in open circuit voltage of organic photovoltaic devices

Feb 1, 2013· 1. Introduction. Small-molecule organic photovoltaic (OPV) devices have been studied extensively and rapidly developed to take advantage of their low cost and flexibility compared with inorganic devices [1], [2], [3].Since Tang reported the two-layer copper-phthalocyanine (CuPc)-based OPV device with power conversion efficiency (PCE) of ∼1% in

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Solar Cells: Nanoimaging of Open‐Circuit Voltage in Photovoltaic

DOI: 10.1002/AENM.201570123 Corpus ID: 97250597; Solar Cells: Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices (Adv. Energy Mater. 23/2015) @article{Tennyson2015SolarCN, title={Solar Cells: Nanoimaging of Open‐Circuit Voltage in Photovoltaic Devices (Adv. Energy Mater. 23/2015)}, author={Elizabeth M. Tennyson and Joseph L. Garrett and Jesse A. Frantz

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Elizabeth Tennyson

May 3, 2021· Our lab, in collaboration with others, has developed a new nanoimaging technique to map the open-circuit voltage in optoelectronic devices. This method can advance the current state-of-knowledge of the fundamental processes governing solar cell performance in order to enhance overall photovoltaic efficiencies.

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Molecular and Morphological Influences on the Open Circuit

We explore the dependence of the dark current of C60-based organic photovoltaic (OPV) cells on molecular composition and the degree of intermolecular interaction of several molecular donor materials. The saturation dark current density, JS, is an important factor in determining the open circuit voltage, Voc. The Voc values of OPVs show a strong inverse correlation with JS. Donor

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Limits of open circuit voltage in organic photovoltaic devices

Mar 18, 2010· Open circuit voltage (Voc) of organic photovoltaic devices has been interpreted with either the metal-insulator-metal (MIM) model or the energy offset between highest occupied molecular orbital

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‪Elizabeth Tennyson‬

Real-time nanoscale open-circuit voltage dynamics of perovskite solar cells. JL Garrett, EM Tennyson, M Hu, J Huang, JN Munday, MS Leite 2020. 127: 2020: Nanoimaging of open-circuit voltage in photovoltaic devices. EM Tennyson, JL Garrett, JA Frantz, JD Myers, RY Bekele, JS Sanghera, Adv. Energy Mater 5 (23 EM Tennyson, K Frohna, WK

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Suppressed carrier recombination and boosted open-circuit voltage

Aug 14, 2023· Indoor organic photovoltaic provides a promising energy for the off-grid self-power supply technology of the Internet of Things industry. In this work, the indoor organic photovoltaic devices were prepared with wide bandgap polymer PM6 as donor and fullerene derivatives PC71BM as acceptor. The photovoltaic performances, the carrier recombination

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Multimodal Characterization of Halide Perovskites: From the

Dec 22, 2023· Halide perovskite semiconductors are enabling a wide variety of high-performing optoelectronic devices, including photovoltaics, light-emitting diodes, photodetectors and radiation detectors. However, these materials exhibit heterogeneity in their chemical, structural, morphological, and optoelectronic properties on a range of length scales

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About Tennyson nanoimaging of open circuit voltage in photovoltaic devices

About Tennyson nanoimaging of open circuit voltage in photovoltaic devices

Tennyson et al. studied various photovoltaic devices ranging from epitaxial GaAs to polycrystalline copper indium gallium diselenide using KPFM. They resolved the open-circuit voltage (V OC) with a spatial resolution of < 100 nm to suggest the V OC as a critical figure of merit that dictates the device performance.

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