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GaInP/GaInAs/Ge triple junction solar cells for ultra high concentration

Enrique Barrigón, Ignacio Rey‐Stolle, B. Galiana, Iván García, Carlos Algora

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Abstract

In this paper we characterize the first functional, lattice matched, GaInP/GaInAs/Ge triple junction solar cells grown and manufactured in our lab with an efficiency conversion of 31.5% at a concentration level of 1000 suns. This is our first approach for transferring the world record double junction solar cell, also developed in our group, into a Ge substrate. First experimental results are presented and the strategy to improve its efficiency is outlined.

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What this paper is about

In this paper we characterize the first functional, lattice matched, GaInP/GaInAs/Ge triple junction solar cells grown and manufactured in our lab with an efficiency conversion of 31.5% at a concentration level of 1000 suns. This is our first approach for transferring the world record double junction solar cell, also developed in our group, into a Ge substrate. First experimental results are presented and the strategy to improve its efficiency is outlined.

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OpenAlex reports 13 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

In this paper we characterize the first functional, lattice matched, GaInP/GaInAs/Ge triple junction solar cells grown and manufactured in our lab with an efficiency conversion of 31.5% at a concentration level of 1000 suns. This is our first approach for transferring the world record double junction solar cell, also developed in our group, into a Ge substrate. First experimental results are presented and the strategy to improve its efficiency is outlined.

Key concepts: Suns in alchemy, Triple junction, Optoelectronics, Materials science, Energy conversion efficiency, Solar cell, Substrate (aquarium), Gallium arsenide

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