Mf. Vilela et al., CHEMICAL BEAM EPITAXY OF INP-BASED SOLAR-CELLS AND TUNNEL-JUNCTIONS, Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement and phenomena, 12(2), 1994, pp. 1251-1253
Chemical beam epitaxy has been utilized to demonstrate high efficiency
InGaAs/InP tandem solar cells on InP substrates. The key development
in achieving such tandems is the growth of high peak current density I
nGaAs tunnel junctions for use as interconnect between the top and bot
tom cells. The growth and performance of the InGaAs bottom cell, the I
nGaAs tunnel junction, and the InP top cell are first independently pr
esented in the paper. Then the growth of an InP-based tandem cell is d
escribed followed by a discussion of its performance.