Intermediate Band Solar Cell with Extreme Broadband Spectrum Quantum Efficiency

被引：61

作者：

Datas, A. ^{[1
]}

Lopez, E. ^{[1
]}

Ramiro, I. ^{[1
]}

Antolin, E. ^{[1
]}

Marti, A. ^{[1
]}

Luque, A. ^{[1
]}

Tamaki, R. ^{[2
]}

Shoji, Y. ^{[2
]}

Sogabe, T. ^{[2
]}

Okada, Y. ^{[2
]}

机构：

[1] Univ Politecn Madrid, Inst Energia Solar, ETSI Telecomunicac, E-28040 Madrid, Spain

[2] Univ Tokyo, Res Ctr Adv Sci & Technol, Meguro Ku, Tokyo 1538904, Japan

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 114卷 / 15期

关键词：

ENHANCEMENT;

D O I：

10.1103/PhysRevLett.114.157701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report, for the first time, about an intermediate band solar cell implemented with InAs/AlGaAs quantum dots whose photoresponse expands from 250 to similar to 6000 nm. To our knowledge, this is the broadest quantum efficiency reported to date for a solar cell and demonstrates that the intermediate band solar cell is capable of producing photocurrent when illuminated with photons whose energy equals the energy of the lowest band gap. We show experimental evidences indicating that this result is in agreement with the theory of the intermediate band solar cell, according to which the generation recombination between the intermediate band and the valence band makes this photocurrent detectable.

引用

页数：4

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