Performance of Nanocrystalline Iron Pyrite as the Back Contact to CdS/CdTe Solar Cells

被引：0

作者：

Bhandari, Khagendra P. ^{[1
]}

Khanal, Rajendra R. ^{[1
]}

Paudel, Naba R. ^{[1
]}

Koirala, Prakash ^{[1
]}

Roland, Paul J. ^{[1
]}

Kinner, Tyler ^{[1
]}

Yan, Yanfa ^{[1
]}

Collins, Robert W. ^{[1
]}

Heben, Michael J. ^{[1
]}

Ellingson, Randy. J. ^{[1
]}

机构：

[1] Univ Toledo, Dept Phys & Astron, Wright Ctr Photovolta Innovat & Commercializat, Toledo, OH 43606 USA

来源：

2014 IEEE 40TH PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) | 2014年

关键词：

back contact; cadmium telluride; hydrazine; iron persulfide; iron pyrite; nanocrystal; copper-free; carrier density; mobility; TEMPERATURE-DEPENDENCE; ENERGY-GAP; BAND-GAP; SPECTROSCOPY; CONDUCTION; SOLIDS; CU;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

We describe the application of iron persulfide (pyrite, FeS2) NC thin films as a Cu-free back contact to CdS/CdTe solar cells. We synthesized cubic FeS2 NCs, and prepared NC-FeS2 films by drop-casting to investigate their use in thin film solar cells. Characterization of the FeS2 NC films revealed sub-band-gap optical absorption, holes as the majority carrier, free hole concentration of similar to 10(19) cm(-3), and Hall mobility of mu(h) << 1 cm(2) V-1S-1. CdS/CdTe solar cells completed by depositing hydrazine-treated NC-FeS2 back contacts directly onto CdTe displayed efficiencies comparable to those of standard Cu/Au back contact devices. Our best FeS2 device shows an AM1.5G efficiency of 12.5%, V-oc = 0.81 V, J(sc) = 23.0 mA/cm(2), and FF = 67%. Temperature dependent studies of solar cells reveal that the ' roll-over' effect observed in standard devices at low temperature is controlled by replacing Cu by hydrazinetreated NC-FeS2.

引用

页码：2293 / 2298

页数：6

共 50 条

[31] XRF and High Resolution TEM Studies of Cu at the Back Contact in Sputtered CdS/CdTe Solar Cells
Liu, Xiangxin
Compaan, A. D.
Sun, Kai
Terry, Jeff
PVSC: 2008 33RD IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE, VOLS 1-4, 2008, : 29 - +
[32] Bifacial CdS/CdTe thin-film solar cells with copper nanowires as a transparent back contact
Byun, Eunkyo
Seo, Jaeyoung
Kim, Donghwan
Kim, Jihyun
OPTICS EXPRESS, 2018, 26 (18): : 23594 - 23601
[33] A detailed study of the series resistance effect on CdS/CdTe solar cells with Cu/Mo back contact
Pena, J. L.
Ares, O.
Rejon, V.
Rios-Flores, A.
Camacho, Juan M.
Romeo, N.
Bosio, A.
THIN SOLID FILMS, 2011, 520 (02) : 680 - 683
[34] Exploring back contact technology to increase CdS/CdTe solar cell efficiency
Fahrenbruch, Alan L.
THIN-FILM COMPOUND SEMICONDUCTOR PHOTOVOLTAICS - 2007, 2007, 1012 : 283 - 290
[35] Improved performance of CdTe solar cells with CdS treatment
Li, Hui
Liu, Xiangxin
SOLAR ENERGY, 2015, 115 : 603 - 612
[36] Role of copper in the performance of CdS/CdTe solar cells
Demtsu, S.
Albin, D.
Sites, J.
CONFERENCE RECORD OF THE 2006 IEEE 4TH WORLD CONFERENCE ON PHOTOVOLTAIC ENERGY CONVERSION, VOLS 1 AND 2, 2006, : 523 - 526
[37] Development of efficient and stable back contacts on CdTe/CdS solar cells
Bätzner, DL
Romeo, A
Zogg, H
Wendt, R
Tiwari, AN
THIN SOLID FILMS, 2001, 387 (1-2) : 151 - 154
[38] CuSCN as the Back Contact for Efficient ZMO/CdTe Solar Cells
Li, Deng-Bing
Song, Zhaoning
Bista, Sandip S.
Alfadhili, Fadhil K.
Awni, Rasha A.
Shrestha, Niraj
Rhiannon, DeMilt
Phillips, Adam B.
Heben, Michael J.
Ellingson, Randy J.
Yan, Feng
Yan, Yanfa
MATERIALS, 2020, 13 (08)
[39] Study on the Back Contact Performances of CdTe Solar Cells by XPS
Song Hui-jin
Zheng Jia-gui
Feng Liang-huan
Zhang Jing-quan
Li Wei
Li Bing
Wu li-li
Lei Zhi
Yan Qiang
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28 (12) : 2737 - 2740
[40] INVESTIGATION OF PARASITIC ABSORPTION IN BACK CONTACT OF CdTe SOLAR CELLS
Smay, Joshua
Rashwan, Ola
Then, James
Perez, Darien
PROCEEDINGS OF THE ASME 12TH INTERNATIONAL CONFERENCE ON ENERGY SUSTAINABILITY, 2018, 2018,

← 1 2 3 4 5 →