Monolithic, Two-Terminal InP/Ga0.47In0.53As Tandem Solar Cells

M. W. Wanlass, J. S. Ward, K. A. Emery, T. J. Coutts

Research output: Contribution to conferencePaperpeer-review

2 Scopus Citations


Two fundamental problems must be addressed to realize high-performance, two-terminal cells. First, an ohmic electrical interconnect between the top and bottom subcells must be integrated into the monolithic structure to connect the subcells in series. The optical and joule losses in the interconnect should be negligible compared to the tandem cell output. Second, because the subcells are connected in series, techniques for matching the subcell photocurrents, and maximizing the tandem cell photocurrent, under relevant solar spectra, are necessary to achieve the highest tandem cell efficiency. In this paper, we describe preliminary progress towards solving these problems, and outline directions for future work.

Original languageAmerican English
Number of pages5
StatePublished - 1993
Event1993 IEEE International Symposium on Circuits and Systems; Part 1 (of 4) - Paris, Fr
Duration: 19 Apr 199322 Apr 1993


Conference1993 IEEE International Symposium on Circuits and Systems; Part 1 (of 4)
CityParis, Fr

NREL Publication Number

  • NREL/CP-413-5423


Dive into the research topics of 'Monolithic, Two-Terminal InP/Ga0.47In0.53As Tandem Solar Cells'. Together they form a unique fingerprint.

Cite this