Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Johnathan C. Armstrong"'
Autor:
Jingbiao Cui, Xiumei Geng, Matthew Brozak, Wei Wu, Johnathan C. Armstrong, Alaa A. Al-Hilo, Tar-Pin Chen, Ning Li, Weiwei Sun
Publikováno v:
Advanced Functional Materials. 24:6123-6129
The hydrogen evolution reaction in an alkaline environment using a non-precious catalyst with much greater efficiency represents a critical challenge in research. Here, a robust and highly active system for hydrogen evolution reaction in alkaline sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44bcd8dc6a5b8eeea4c3e1b8f2306da3
https://doi.org/10.1002/adfm.201401328
https://doi.org/10.1002/adfm.201401328
Autor:
Jingbiao Cui, Johnathan C. Armstrong
Publikováno v:
Journal of Materials Research. 29:1309-1316
Solution-processed CuInGaS2 (CIGS) thin-film solar cells are promising for large-scale commercialization due to their economic process although the efficiency still needs to be improved to compete with vacuum-based materials. Systematic studies were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2236fb62e3ae56c5da1f9eb54b042f79
https://doi.org/10.1557/jmr.2014.114
https://doi.org/10.1557/jmr.2014.114
Publikováno v:
2014 IEEE 40th Photovoltaic Specialist Conference (PVSC).
In this work, we have fabricated Core-Shell Si/CdS nanowires heterojunction structures by preparing n type cadmium sulfite nanoparticles (CdS-NPs) on a large area of vertically alight p type of Si nanowires (Si-NWs). The CdS-NPs were fabricated by ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b241e76b16c5627136e9bf5d47fad78
https://doi.org/10.1109/pvsc.2014.6925424
https://doi.org/10.1109/pvsc.2014.6925424
Publikováno v:
2014 IEEE 40th Photovoltaic Specialist Conference (PVSC).
CIGS thin film heterostructures are fabricated by low cost, solution based processes. While a standard process includes a CdS buffer layer, MgZnO provides a more environmentally friendly material. In this study, MgZnO thin films were deposited by ato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a983ee79bd1ce5df00dc2344c279e77
https://doi.org/10.1109/pvsc.2014.6924919
https://doi.org/10.1109/pvsc.2014.6924919
Publikováno v:
MRS Proceedings. 1670
In this study, we have investigated various approaches to improve CIGS solar cells after thin film deposition. CIGS devices have been fabricated by a hydrazine solution based process. Post-deposition treatments by sulfurization were studied with focu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e13d33bcf2ce8d223bcc72fe6b765a5
https://doi.org/10.1557/opl.2014.669
https://doi.org/10.1557/opl.2014.669
Autor:
Johnathan C. Armstrong, Jingbiao Cui
Publikováno v:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).
Cu(In, Ga)S2 (CIGS) thin film and core-shell nanowire heterostructures are fabricated by low cost, solution based processes. While a standard process is used for the thin film solar cells, a reversed process is developed to fabricate nanowire solar c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eed829500e7de1834afe766e68ce0f6d
https://doi.org/10.1109/pvsc.2013.6744996
https://doi.org/10.1109/pvsc.2013.6744996
Publikováno v:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).
We have fabricated branched heterojunction structures by growing horizontal ZnO nanowires (ZnONWs) on vertical Si nanowires (SiNWs). The SiNWs were fabricated by chemical etching of Si wafers, while the ZnONWs were grown in solution by an electrochem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cff53dc61af10494e97fa0c6895c1551
https://doi.org/10.1109/pvsc.2013.6745013
https://doi.org/10.1109/pvsc.2013.6745013
Publikováno v:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).
Cu2ZnSnS4 (CZTS) is a promising alternative for Cu(In, Ga)Se2 (CIGS) absorber layer in thin film solar cells due to its earth abundant, inexpensive, non-toxic constituents and optimal material properties. In this report, CZTS based thin film and nano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52492977f9e4e25de273a0485681d733
https://doi.org/10.1109/pvsc.2013.6744874
https://doi.org/10.1109/pvsc.2013.6744874
Autor:
Alaa A. Al-Hilo, Samir M. AbdulAlmohsin, Jingbiao Cui, Muatez Mohammed, Tar-Pin Chen, Johnathan C. Armstrong, Zhongrui Li
Publikováno v:
2013 IEEE 39th Photovoltaic Specialists Conference (PVSC).
To improve the photovoltaic conversion efficiency of the SWNT/n-Si configuration, we introduce p-type wide bandgap semiconductor Cu2O nanoparticles into the void space of the SWNT network. This has brought in several improvements for the SWNTs/n-Si j
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d456f2048d5026c689baa68c429013a
https://doi.org/10.1109/pvsc.2013.6744222
https://doi.org/10.1109/pvsc.2013.6744222
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 31:01A130
A hydrogen plasma doping process was combined with the traditional atomic layer deposition (ALD) technique in order to enhance the transparency and conductivity of ZnO films. The hydrogen plasma was included in situ during each ALD cycle and was foun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4123aca6b59d96efe4c2206b8ebed7e4
https://doi.org/10.1116/1.4768172
https://doi.org/10.1116/1.4768172