Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Suneth C. Watthage"'
Autor:
Randy J. Ellingson, Fadhil K. Alfadhili, Michael J. Heben, Khagendra P. Bhandari, Ebin Bastola, Adam J. Phillips, Geethika K. Liyanage, Suneth C. Watthage, Zhaoning Song
Publikováno v:
Progress in Photovoltaics: Research and Applications. 28:1024-1033
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e36d01eae61e11a745c22470bc5fa66
https://doi.org/10.1002/pip.3309
https://doi.org/10.1002/pip.3309
Impact of Moisture on Photoexcited Charge Carrier Dynamics in Methylammonium Lead Halide Perovskites
Autor:
Niraj Shrestha, Randy J. Ellingson, Adam B. Phillips, Michael J. Heben, Ramez Hosseinian Ahangharnejhad, Zhaoning Song, Geethika K. Liyanage, Suneth C. Watthage, Zahrah S. Almutawah
Publikováno v:
The Journal of Physical Chemistry Letters. 9:6312-6320
Organic–inorganic metal halide perovskites are notoriously unstable in humid environments. While many studies have revealed the morphology and crystal structure changes that accompany exposure to humidity, little is known about changes to the photo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::811c9fb95174353c5be35a1d04d66095
https://doi.org/10.1021/acs.jpclett.8b02595
https://doi.org/10.1021/acs.jpclett.8b02595
Autor:
Jacob M. Gibbs, Adam B. Phillips, Michael J. Heben, Khagendra P. Bhandari, Randy J. Ellingson, Zhaoning Song, Geethika K. Liyanage, Fadhil K. Alfadhili, Rabee B. Alkhayat, Suneth C. Watthage, Ramez Hosseinian Ahangharnejhad, Zahrah S. Almutawah
Publikováno v:
IEEE Journal of Photovoltaics. 8:1125-1131
The presence of a Te-rich surface or an elemental Te layer is beneficial for the formation of a low-barrier back contact for high-efficiency CdTe solar cells. Etching processes are widely used to form Te-rich CdTe surfaces, while deposition processes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19407cb24479517870bacdd3858e39ce
https://doi.org/10.1109/jphotov.2018.2830302
https://doi.org/10.1109/jphotov.2018.2830302
Autor:
Ramez Hosseinian Ahangharnejhad, Prakash Koirala, Michael J. Heben, Robert W. Collins, Adam H. Phillips, Zahrah S. Almutawah, Suneth C. Watthage, Yanfa Yan, Dhurba R. Sapkota, Zhaoning Song
Publikováno v:
MRS Advances. 3:3111-3119
Monolithic integrated thin film tandem solar cells consisting of a high bandgap perovskite top cell and a low bandgap thin film bottom cell are expected to reach higher power conversion efficiencies (PCEs) with lower manufacturing cost and environmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac145ef0cf44adcef8a45f38f5872574
https://doi.org/10.1557/adv.2018.464
https://doi.org/10.1557/adv.2018.464
Autor:
Adam B. Phillips, Michael J. Heben, Zhaoning Song, Kamala Khanal Subedi, Yanfa Yan, Randy J. Ellingson, Niraj Shrestha, Suneth C. Watthage, Ramez Hosseinian Ahangharnejhad, Zahrah S. Almutawah
Publikováno v:
MRS Advances. 3:3237-3242
Methods of obtaining large grain size and high crystallinity in absorber materials play an important role in fabrication of high-performance methylammonium lead iodide (MAPbI3) perovskite solar cells. Here we study the effect of adding small concentr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84e14afc5f27243f968172effd75d9ef
https://doi.org/10.1557/adv.2018.413
https://doi.org/10.1557/adv.2018.413
Autor:
Suneth C. Watthage, Adam B. Phillips, Michael J. Heben, Randy J. Ellingson, Niraj Shrestha, Zhaoning Song, Paul J. Roland, Geethika K. Liyanage
Publikováno v:
ACS Applied Materials & Interfaces. 9:2334-2341
Control over grain size and crystallinity is important for preparation of methylammonium lead iodide (MAPbI3) solar cells. We explore the effects of using small concentrations of Cd2+ and unusually high concentrations of methylammonium iodide during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99815b25d432b96577d420915f74a096
https://doi.org/10.1021/acsami.6b12627
https://doi.org/10.1021/acsami.6b12627
Autor:
Niraj Shrestha, Randy J. Ellingson, Suneth C. Watthage, Zhaoning Song, Paul J. Roland, Geethika K. Liyanage, Adam B. Phillips, Michael J. Heben
Publikováno v:
MRS Advances. 2:1183-1188
Here, we investigate the effect of divalent metal (Zn2+, Cd2+ and Hg2+) on the structural and optoelectronic properties of methylammonium lead iodide perovskite materials prepared by the two-step deposition process. The incorporation of Cd2+ signific
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48c966dc6f7da12f8d147b61e3503f93
https://doi.org/10.1557/adv.2017.47
https://doi.org/10.1557/adv.2017.47
Autor:
Geethika K. Liyanage, Suneth C. Watthage, Defne Apul, Zhaoning Song, Chad L. McElvany, Adam B. Phillips, Michael J. Heben, Ilke Celik, Patrick Krantz
Publikováno v:
Energy & Environmental Science. 10:1297-1305
After rapid progress in the past few years, emerging solar cells based on metal halide perovskites have become a potential candidate to rival and even outperform crystalline silicon photovoltaics (PV) in the marketplace. With high material utilizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3297cc6fc975c5a857776683cba389f7
https://doi.org/10.1039/c7ee00757d
https://doi.org/10.1039/c7ee00757d
Autor:
Florent Sahli, Adam B. Phillips, Michael J. Heben, Christophe Ballif, Suneth C. Watthage, Björn Niesen, Jérémie Werner, Randy J. Ellingson, Zhaoning Song, Stefaan De Wolf, Niraj Shrestha
Publikováno v:
The Journal of Physical Chemistry Letters. 7:5114-5120
Perovskite/silicon tandem solar cells with high power conversion efficiencies have the potential to become a commercially viable photovoltaic option in the near future. However, device design and optimization is challenging because conventional chara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c119ae5648c9e5aed6d5682ca4dabefc
https://doi.org/10.1021/acs.jpclett.6b02415
https://doi.org/10.1021/acs.jpclett.6b02415
Autor:
Suneth C. Watthage, Nicole A. Kotulak, Woojun Yoon, Yanfa Yan, Zahrah S. Almutawah, Keith E. Knipling, Robert J. Walters, Adam B. Phillips, Michael J. Heben, Phillip P. Jenkins, Dewei Zhao
Publikováno v:
2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC).
In this report, we use atom probe tomography (APT) to produce 3D compositional maps of one-step growth of perovskite films (CH 3 NH 3 PbI 3 , MAPbI 3 . Initial studies indicate that further grain size enhancement and improved crystallinity can be ach
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62ae37eb9a054aa3b36cea3860019934
https://doi.org/10.1109/pvsc.2018.8547348
https://doi.org/10.1109/pvsc.2018.8547348