Efficient light harvesting and carrier transport in PbS quantum dots/silicon nanotips heterojunctions

Chun Ying Huang; Di Yan Wang; Chun Hsiung Wang; Yaw Tyng Wang; You Ting Jiang; Ying Jay Yang; Chia Chun Chen; Yang Fang Chen

doi:10.1088/0022-3727/44/8/085103

Efficient light harvesting and carrier transport in PbS quantum dots/silicon nanotips heterojunctions

Chun Ying Huang^*
, Di Yan Wang
, Chun Hsiung Wang
, Yaw Tyng Wang
, You Ting Jiang
, Ying Jay Yang
, Chia Chun Chen
, Yang Fang Chen

^*此作品的通信作者

化學系

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

26 引文斯高帕斯（Scopus）

摘要

Light harvesting from nanocomposites consisting of silicon (Si) nanotips and PbS quantum dots (QDs) has been investigated. We show that Si nanotips provide direct carrier transport paths, additional interfacial area and light trapping. We observe that there is a dramatic enhancement in short-circuit current (from 9.34 to 14.17mAcm^-2) with nanotips structure than that of the bulk Si wafer. In addition, with an additional electron blocking layer, the photovoltaic performance can be further increased. The nanocomposites consisting of QDs and Si nanotips therefore open a promising route for efficient light harvesting from visible to infrared with improved power conversion efficiency.

原文	英語
文章編號	085103
期刊	Journal of Physics D: Applied Physics
卷	44
發行號	8
DOIs	https://doi.org/10.1088/0022-3727/44/8/085103
出版狀態	已發佈 - 2011 3月 2

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此研究成果有助於以下永續發展目標

SDG 7 可負擔的潔淨能源

ASJC Scopus subject areas

電子、光磁材料
凝聚態物理學
聲學與超音波
表面、塗料和薄膜

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10.1088/0022-3727/44/8/085103

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abstract = "Light harvesting from nanocomposites consisting of silicon (Si) nanotips and PbS quantum dots (QDs) has been investigated. We show that Si nanotips provide direct carrier transport paths, additional interfacial area and light trapping. We observe that there is a dramatic enhancement in short-circuit current (from 9.34 to 14.17mAcm-2) with nanotips structure than that of the bulk Si wafer. In addition, with an additional electron blocking layer, the photovoltaic performance can be further increased. The nanocomposites consisting of QDs and Si nanotips therefore open a promising route for efficient light harvesting from visible to infrared with improved power conversion efficiency.",

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AU - Huang, Chun Ying

AU - Wang, Di Yan

AU - Wang, Chun Hsiung

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AU - Yang, Ying Jay

AU - Chen, Chia Chun

AU - Chen, Yang Fang

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AB - Light harvesting from nanocomposites consisting of silicon (Si) nanotips and PbS quantum dots (QDs) has been investigated. We show that Si nanotips provide direct carrier transport paths, additional interfacial area and light trapping. We observe that there is a dramatic enhancement in short-circuit current (from 9.34 to 14.17mAcm-2) with nanotips structure than that of the bulk Si wafer. In addition, with an additional electron blocking layer, the photovoltaic performance can be further increased. The nanocomposites consisting of QDs and Si nanotips therefore open a promising route for efficient light harvesting from visible to infrared with improved power conversion efficiency.

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Efficient light harvesting and carrier transport in PbS quantum dots/silicon nanotips heterojunctions

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