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Efficient 18 Å/s Solar Cells with All Silicon Layers Deposited by Hot-Wire Chemical Vapor Deposition

  • Qi Wang (a1), Eugene Iwaniczko (a1), Yueqin Xu (a1), Wei Gao (a1), Brent P. Nelson (a1), A.H. Mahan (a1), R.S. Crandall (a1) and Howard M. Branz (a1)...

Abstract

Efficient hydrogenated amorphous silicon (a-Si:H) n-i-p solar cells have been fabricated with all doped and undoped a-Si:H layers deposited by hot-wire chemical vapor deposition (HWCVD). The total deposition time of all layers, except the top ITO-contact, is less than 4 minutes. On an untextured stainless steel (SS) substrate, an initial efficiency of 7.12% is reached, with a stable efficiency of 5.4% after 1000 hours 1 sun light soaking. This initial efficiency is reached by incorporating into the p/i interface about 60 Å of intrinsic a-Si:H “edge” material grown under conditions near the transition to microcrystallinity. This edge layer increases the cell's fill factor from 0.60 to 0.68 and the best open-circuit voltage is about 0.88 V. Using textured Ag/ZnOcoated SS supplied by United Solar Corporation, preliminary results of an all-HWCVD solar cell give an initial efficiency of 8.7 %.

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1. Yang, J., Sugiyama, S., and Guha, S., Mat. Res. Soc. Symp. Proc. 507 157 (1998).
2. Mahan, A.H., Reedy, R.C. Jr, Iwaniczko, E., Qi Wang, Nelson, B.P., Xu, Y., Gallagher, A. C., Branz, H.M., Crandall, R.S., Yang, J., and Guha, S., Mat. Res. Soc. Symp. Proc. 507, 119 (1998).
3. Wang, Qi, Iwaniczko, E., Xu, Yueqin, Nelson, B., and Mahan, H., Mat. Res. Soc. Symp. Proc. 557, 163 (1999).
4. Nelson, B., Crandall, R.S., Iwaniczko, E., Mahan, A. H., Wang, Qi, Xu, Yueqin, and Gao, Wei, Mat. Res. Soc. Symp. Proc. 557, 97 (1999).
5. Yue, Guozhen, Lorentzen, J. D., Lin, Jing, Han, Daxing and Wang, Qi, Appl. Phys. Lett. 75, 492 (1999).
6. Wang, Qi, Yue, Guozhen, Li, Jing, and Han, Daxing, Solid State Commun. 113, 175 (1999).
7. Han, Daxing, Yue, Guozhen, Lorentzen, J. D., Lin, Jing, Habuchi, H., and Wang, Qi, J. Appl. Phys. 87, 1882 (2000).
8. Kattwinkel, A., Braunstein, R., and Wang, Qi, Mat. Res. Soc. Symp. Proc. 557, 543 (1999).
9. Tsu, D.V., Chao, B.S., Ovshinshy, S.R., Guha, S., and Yang, J., Appl. Phys. Lett. 71, 1317 (1997).
10. Yang, L., Chen, L., Wiedemann, S. and Catalano, A., Mat. Res. Soc. Symp. Proc. Proc. 283, 462 (1992).
11. Yang, J., and Guha, S., Mat. Res. Soc. Symp. Proc. 557, 239 (1999).
12. Koh, J., Lee, Y., Fujiwara, H., Wronski, C. R., Collins, R.W., Appl. Phys. Lett. 73, 1526 (1998).
13. Brogueira, P., Chu, V., Ferro, A.C., and Conde, J.P., JVSTA 15, 2968 (1997).

Efficient 18 Å/s Solar Cells with All Silicon Layers Deposited by Hot-Wire Chemical Vapor Deposition

  • Qi Wang (a1), Eugene Iwaniczko (a1), Yueqin Xu (a1), Wei Gao (a1), Brent P. Nelson (a1), A.H. Mahan (a1), R.S. Crandall (a1) and Howard M. Branz (a1)...

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