A pyrosol process to deposit large-area SnO2:F thin films and its use as a transparent conducting substrate for CdTe solar cells

被引:55
作者
Veluchamy, P [1 ]
Tsuji, M [1 ]
Nishio, T [1 ]
Aramoto, T [1 ]
Higuchi, H [1 ]
Kumazawa, S [1 ]
Shibutani, S [1 ]
Nakajima, J [1 ]
Arita, T [1 ]
Ohyama, H [1 ]
Hanafusa, A [1 ]
Hibino, T [1 ]
Omura, K [1 ]
机构
[1] Matsushita Battery Ind Co Ltd, PV R&D Ctr, Moriguchi, Osaka 5708511, Japan
关键词
transparent conducting oxide films; SnO2; pyrosol technique; CdS/CdTe solar cell; dimethyl tin dichloride;
D O I
10.1016/S0927-0248(00)00279-8
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
Highly transparent, low-resistance SnO2 :F films suitable as a substrate material for thin-film CdS/CdTe solar cells have been developed on 10 x 10, 30 x 60 and 82 x 71cm(2) glass substrates by an ultrasonic spray pyrolysis (pyrosol) process. Dimethyltin dichloride, NH,F and HF dissolved in water served as the source solution. A fine spray of the source solution has been transported using air as a carrier gas onto hot glass plates in a belt furnace maintained at 500-530 degreesC. A very high growth rate of > 15 nm/s and a high throughput of 3 min/glass plate (82 x 71cm(2) size) have been achieved with films showing greater uniformity, low sheet resistance and high optical transmission. Typical films exhibited a thickness of 500 nm, a sheet resistance of 8.1 Omega /sq., a mobility of 43.8 cm(2)/V s and a donor concentration of 3.5 x 10(20) cm(-3). A thin-film CdS/CdTe solar cell fabricated on a 30 x 60 cm(2) SnO2:F transparent conducting substrate exhibited a solar energy conversion efficiency maximum of 14.95% for 1 cm(2) cell and an average efficiency of 14.24% for 178 isolated 1 cm(2) cells. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:179 / 185
页数:7
相关论文
共 25 条
  • [11] 15.1% Highly efficient thin film CdS/CdTe solar cell
    Kumazawa, S
    Shibutani, S
    Nishio, T
    Aramoto, T
    Higuchi, H
    Arita, T
    Hanafusa, A
    Omura, K
    Murozono, M
    Takakura, H
    [J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1997, 49 (1-4) : 205 - 212
  • [12] Effect of nitric-phosphoric acid etches on material properties and back-contact formation of CdTe-based solar cells
    Li, XN
    Niles, DW
    Hasoon, FS
    Matson, RJ
    Sheldon, P
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1999, 17 (03): : 805 - 809
  • [13] DEPOSITION OF IN2O3-SNO2 LAYERS ON GLASS SUBSTRATES USING A SPRAYING METHOD
    MANIFACIER, JC
    FILLARD, JP
    BIND, JM
    [J]. THIN SOLID FILMS, 1981, 77 (1-3) : 67 - 80
  • [14] Murakami K, 1996, J AM CERAM SOC, V79, P2557, DOI 10.1111/j.1151-2916.1996.tb09015.x
  • [15] MUTO R, 1973, REP RES LAB ASAHI GL, V23, P27
  • [16] Characterization of highly efficient CdTe thin film solar cells by low-temperature photoluminescence
    Okamoto, T
    Matsuzaki, Y
    Amin, N
    Yamada, A
    Konagai, M
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1998, 37 (07): : 3894 - 3899
  • [17] A pyrosol technique to deposit highly transparent, low-resistance SnO2:F thin films from dimethyltin dichloride
    Omura, K
    Veluchamy, P
    Tsuji, M
    Nishio, T
    Murozono, M
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (06) : 2113 - 2116
  • [18] OMURA K, 1998, Patent No. 10206575
  • [19] Electronic and optical properties of fluorine-doped tin oxide films
    Rakhshani, AE
    Makdisi, Y
    Ramazaniyan, HA
    [J]. JOURNAL OF APPLIED PHYSICS, 1998, 83 (02) : 1049 - 1057
  • [20] RELATION BETWEEN SOLUTION CHEMISTRY AND MORPHOLOGY OF SNO2-BASED THIN-FILMS DEPOSITED BY A PYROSOL PROCESS
    SMITH, A
    LAURENT, JM
    SMITH, DS
    BONNET, JP
    CLEMENTE, RR
    [J]. THIN SOLID FILMS, 1995, 266 (01) : 20 - 30