Search Results - "Riley, Drew B"

Charge-generating mid-gap trap states define the thermodynamic limit of organic photovoltaic devices by Zarrabi, Nasim, Sandberg, Oskar J., Zeiske, Stefan, Li, Wei, Riley, Drew B., Meredith, Paul, Armin, Ardalan

“…Detailed balance is a cornerstone of our understanding of artificial light-harvesting systems. For next generation organic solar cells, this involves…”
Get full text

Simultaneous observation of free and defect-bound excitons in CH3NH3PbI3 using four-wave mixing spectroscopy by March, Samuel A., Clegg, Charlotte, Riley, Drew B., Webber, Daniel, Hill, Ian G., Hall, Kimberley C.

“…Solar cells incorporating organic-inorganic perovskite, which may be fabricated using low-cost solution-based processing, have witnessed a dramatic rise in…”
Get full text

Author Correction: Charge-generating mid-gap trap states define the thermodynamic limit of organic photovoltaic devices by Zarrabi, Nasim, Sandberg, Oskar J., Zeiske, Stefan, Li, Wei, Riley, Drew B., Meredith, Paul, Armin, Ardalan

“…A Correction to this paper has been published: https://doi.org/10.1038/s41467-020-20626-x…”
Get full text

Role of Exciton Diffusion and Lifetime in Organic Solar Cells with a Low Energy Offset by Riley, Drew B., Meredith, Paul, Armin, Ardalan, Sandberg, Oskar J.

“…Despite general agreement that the generation of free charges in organic solar cells is driven by an energetic offset, power conversion efficiencies have been…”
Get full text

Mitigating Detrimental Effect of Self‐Doping Near the Anode in Highly Efficient Organic Solar Cells by Kim, Yong Ryun, Sandberg, Oskar J., Zeiske, Stefan, Burwell, Gregory, Riley, Drew B., Meredith, Paul, Armin, Ardalan

“…Poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) has been one of the most established hole transport layers (HTL) in organic solar cells…”
Get full text

Efficient Nanoscale Exciton Transport in Non‐Fullerene Organic Solar Cells Enables Reduced Bimolecular Recombination of Free Charges by Riley, Drew B., Sandberg, Oskar J., Zarrabi, Nasim, Kim, Yong Ryun, Meredith, Paul, Armin, Ardalan

“…The highest‐efficiency organic photovoltaic (OPV)‐based solar cells, made from blends of electron‐donating and electron‐accepting organic semiconductors, are…”
Get full text

A New Framework for Understanding Recombination-Limited Charge Extraction in Disordered Semiconductors by Kay, Austin M., Riley, Drew B., Meredith, Paul, Armin, Ardalan, Sandberg, Oskar J.

“…Recombination of free charges is a key loss mechanism limiting the performance of organic semiconductor-based photovoltaics such as solar cells and…”
Get full text

Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells by Sun, Bowen, Tokmoldin, Nurlan, Alqahtani, Obaid, Patterson, Acacia, De Castro, Catherine S. P., Riley, Drew B., Pranav, Manasi, Armin, Ardalan, Laquai, Frédéric, Collins, Brian A., Neher, Dieter, Shoaee, Safa

“…Low‐offset organic solar cell systems have attracted great interest since nonfullerene acceptors came into the picture. While numerous studies have focused on…”
Get full text

Detection of Rashba spin splitting in 2D organic-inorganic perovskite via precessional carrier spin relaxation by Todd, Seth B., Riley, Drew B., Binai-Motlagh, Ali, Clegg, Charlotte, Ramachandran, Ajan, March, Samuel A., Hoffman, Justin M., Hill, Ian G., Stoumpos, Constantinos C., Kanatzidis, Mercouri G., Yu, Zhi-Gang, Hall, Kimberley C.

“…The strong spin-orbit interaction in the organic-inorganic perovskites tied to the incorporation of heavy elements (e.g., Pb and I) makes these materials…”
Get full text

Four-Wave Mixing in Perovskite Photovoltaic Materials Reveals Long Dephasing Times and Weaker Many-Body Interactions than GaAs by March, Samuel A, Riley, Drew B, Clegg, Charlotte, Webber, Daniel, Liu, Xinyu, Dobrowolska, Margaret, Furdyna, Jacek K, Hill, Ian G, Hall, Kimberley C

“…Perovksite semiconductors have shown promise for low-cost solar cells, lasers and photodetectors, yet their fundamental photophysical properties are not well…”
Get full text

On the Performance Limits of Agrivoltaics—From Thermodynamic to Geo‐Meteorological Considerations by Kay, Austin M., Riley, Drew B., Sandberg, Oskar J., Burwell, Gregory, Meredith, Paul, Armin, Ardalan

“…As the world strives toward its net‐zero targets, innovative solutions are required to reduce carbon emissions across all industrial sectors. One approach that…”
Get full text

Toward More Efficient Organic Solar Cells: A Detailed Study of Loss Pathway and Its Impact on Overall Device Performance in Low‐Offset Organic Solar Cells by Sun, Bowen, Tokmoldin, Nurlan, Alqahtani, Obaid, Patterson, Acacia, De Castro, Catherine S. P., Riley, Drew B., Pranav, Manasi, Armin, Ardalan, Laquai, Frédéric, Collins, Brian A., Neher, Dieter, Shoaee, Safa

“…Abstract Low‐offset organic solar cell systems have attracted great interest since nonfullerene acceptors came into the picture. While numerous studies have…”
Get full text

Detection of Rashba spin splitting in 2D organic-inorganic perovskite via precessional carrier spin relaxation by Todd, Seth B., Riley, Drew B., Binai-Motlagh, Ali, Clegg, Charlotte, Ramachandran, Ajan, March, Samuel A., Hoffman, Justin M., Hill, Ian G., Stoumpos, Constantinos C., Kanatzidis, Mercouri G., Yu, Zhi-Gang, Hall, Kimberley C.

“…The strong spin-orbit interaction in the organic-inorganic perovskites tied to the incorporation of heavy elements (e.g., Pb and I) makes these materials…”
Get full text

Simultaneous observation of free and defect-bound excitons in CH 3 NH 3 PbI 3 using four-wave mixing spectroscopy by March, Samuel A, Clegg, Charlotte, Riley, Drew B, Webber, Daniel, Hill, Ian G, Hall, Kimberley C

“…Solar cells incorporating organic-inorganic perovskite, which may be fabricated using low-cost solution-based processing, have witnessed a dramatic rise in…”
Get full text

A quasi steady-state measurement of exciton diffusion lengths in organic semiconductors by Riley, Drew B, Sandberg, Oskar J, Li, Wei, Meredith, Paul, Armin, Ardalan

“…Understanding the role that exciton diffusion plays in organic solar cells is a crucial to understanding the recent rise in power conversion effciencies…”
Get full text

Direct quantification of quasi-Fermi level splitting in organic semiconductor devices by Riley, Drew B, Sandberg, Oskar J, Wilson, Nora M, Li, Wei, Zeiske, Stefan, Zarrabi, Nasim, Meredith, Paul, Osterbacka, Ronald, Armin, Ardalan

“…Phys. Rev. Applied 15, 064035 (2021) Non-radiative losses to the open-circuit voltage are a primary factor in limiting the power conversion efficiency of…”
Get full text

Ultrafast acoustic phonon scattering in CH$_3$NH$_3$PbI$_3$ revealed by femtosecond four-wave mixing by March, Samuel A, Riley, Drew B, Clegg, Charlotte, Webber, Daniel, Hill, Ian G, Yu, Zhi-Gang, Hall, Kimberley C

“…Carrier scattering processes are studied in CH$_3$NH$_3$PbI$_3$ using temperature-dependent four-wave mixing experiments. Our results indicate that scattering…”
Get full text

Simultaneous observation of free and defect-bound excitons in CH3NH3PbI3 using four-wave mixing spectroscopy by March, Samuel A, Clegg, Charlotte, Riley, Drew B, Webber, Daniel, Hill, Ian G, Hall, Kimberley C

“…Scientific Reports 6, Article number: 39139 (2016) Solar cells incorporating organic-inorganic perovskite, which may be fabricated using low-cost…”
Get full text

Detection of Rashba spin splitting in 2D organic-inorganic perovskite via precessional carrier spin relaxation by Todd, Seth B, Riley, Drew B, Binai-Motlagh, Ali, Clegg, Charlotte, Ramachandran, Ajan, March, Samuel A, Hill, Ian G, Stoumpos, Constantinos C, Kanatzidis, Mercouri G, Yu, Zhi-Gang, Hall, Kimberley C

“…The strong spin-orbit interaction in the organic-inorganic perovskites tied to the incorporation of heavy elements (\textit{e.g.} Pb, I) makes these materials…”
Get full text

Four-wave mixing in perovskite photovoltaic materials reveals long dephasing times and weaker many-body interactions than GaAs by March, Samuel A, Riley, Drew B, Clegg, Charlotte, Webber, Daniel, Liu, Xinyu, Dobrowolska, Margaret, Furdyna, Jacek K, Hill, Ian G, Hall, Kimberley C

“…ACS Photonics, 2017, 4, 1515 Perovksite semiconductors have shown promise for low-cost solar cells, lasers and photodetectors, yet their fundamental…”
Get full text