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Increasing conversion efficiency of two-step photon up-conversion solar cell with a voltage booster hetero-interface

Development of high-efficiency solar cells is one of the attractive challenges in renewable energy technologies. Photon up-conversion can reduce the transmission loss and is one of the promising concepts which improve conversion efficiency. Here we present an analysis of the conversion efficiency, w...

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Detalles Bibliográficos
Autores principales: Asahi, Shigeo, Kusaki, Kazuki, Harada, Yukihiro, Kita, Takashi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5772604/
https://www.ncbi.nlm.nih.gov/pubmed/29343735
http://dx.doi.org/10.1038/s41598-018-19155-x
Descripción
Sumario:Development of high-efficiency solar cells is one of the attractive challenges in renewable energy technologies. Photon up-conversion can reduce the transmission loss and is one of the promising concepts which improve conversion efficiency. Here we present an analysis of the conversion efficiency, which can be increased by up-conversion in a single-junction solar cell with a hetero-interface that boosts the output voltage. We confirm that an increase in the quasi-Fermi gap and substantial photocurrent generation result in a high conversion efficiency.