Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Geethika K. Liyanage"'
Publikováno v:
APL Materials, Vol 6, Iss 10, Pp 101104-101104-6 (2018)
Recent numerical modeling and experimental work have shown that appropriate conduction band alignment at the emitter/absorber interface is critically important for high efficiency CdTe solar cells. To date, however, the properties of the transparent
Externí odkaz:
https://doaj.org/article/0698cfa5f8b046debec77c3f9a15e505
Autor:
Maxwell M. Junda, Adam B. Phillips, Michael J. Heben, Tamanna Mariam, Yanfa Yan, Zahrah S. Almutawah, Nikolas J. Podraza, Bhuiyan M. M. Anwar, Jayla J. Gardner, Geethika K. Liyanage, Ramez Hosseinian Ahangharnejhad, Zhaoning Song
Publikováno v:
ACS Applied Energy Materials. 4:7571-7578
Autor:
Randy J. Ellingson, Adam B. Phillips, Michael J. Heben, Fadhil K. Alfadhili, Adam I Halaoui, Deng-Bing Li, Manoj K. Jamarkattel, Bhuiyan M. M. Anwar, Yanfa Yan, Geethika K. Liyanage, Corey R. Grice, Craig L. Perkins, Kamala Khanal Subedi
Publikováno v:
ACS Applied Materials & Interfaces. 12:51337-51343
Although back-surface passivation plays an important role in high-efficiency photovoltaics, it has not yet been definitively demonstrated for CdTe. Here, we present a solution-based process, which achieves passivation and improved electrical performa
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
Autor:
Fadhil K. Alfadhili, Kamala Khanal Subedi, Geethika K. Liyanage, Adam B. Phillips, Michael J. Heben, Randy J. Ellingson
Publikováno v:
ACS Applied Energy Materials. 3:6072-6078
Because bifacial solar cells increase the power generated per area, their market share is projected to increase over the next decade. While silicon technologies have implemented bifacial technology...
Autor:
Adam B. Phillips, Michael J. Heben, Stephen K. O’Leary, Balaji Ramanujam, Mohammed A. Razooqi Alaani, Rasha A. Awni, Nikolas J. Podraza, Prakash Koirala, Robert W. Collins, Dhurba R. Sapkota, Geethika K. Liyanage
Publikováno v:
Materials, Vol 14, Iss 5649, p 5649 (2021)
Materials
Volume 14
Issue 19
Materials
Volume 14
Issue 19
Motivated by their utility in CdTe-based thin film photovoltaics (PV) devices, an investigation of thin films of the magnesium-zinc oxide (MgxZn1−xO or MZO) alloy system was undertaken applying spectroscopic ellipsometry (SE). Dominant wurtzite pha
Autor:
Rasha A. Awni, Adam B. Phillips, Michael J. Heben, Corey R. Grice, Mohammed A. Razooqi, Geethika K. Liyanage, Deng-Bing Li, Jian V. Li, Randy J. Ellingson, Sandip S. Bista, Yanfa Yan, Zhaoning Song, Chongwen Li, Lei Chen
Publikováno v:
Progress in Photovoltaics: Research and Applications. 27:1115-1123
Autor:
Fadhil K. Alfadhili, Geethika K. Liyanage, Adam B. Phillips, Michael J. Heben, Randy J. Ellingson
Publikováno v:
ACS Applied Energy Materials. 2:5419-5426
As the performance of the front interface and the CdTe absorber are improved, minority carrier recombination at the back of the device will limit the photoconversion efficiency. To determine the li...
Autor:
Zhaoning Song, Mohammed A. Razooqi, Geethika K. Liyanage, Randy J. Ellingson, Corey R. Grice, Rasha A. Awni, Lei Chen, Sandip S. Bista, Niraj Shrestha, Yanfa Yan, Adam B. Phillips, Michael J. Heben, Deng-Bing Li
Publikováno v:
ACS Applied Energy Materials. 2:2896-2903
Comparing to the traditional CdS buffer layer, zinc magnesium oxide (ZMO) offers the following advantages for CdTe-based thin-film solar cells: it introduces a spike to conduction band offset, whic...
Autor:
Fadhil K. Alfadhili, Geethika K. Liyanage, Manoj K. Jamarkattel, Adam B. Phillips, Michael J. Heben, Jacob M. Gibbs
Publikováno v:
MRS Advances. 4:913-919
Formation of a low barrier back contact plays a critical role in improving the photoconversion efficiency of the CdTe solar cells. Incorporating a buffer layer to minimize the band bending at the back of the CdTe device can significantly lower the ba