Electric field engineering using quantum-size-effect-tuned heterojunctions

doi:10.1063/1.4813074

2013-07-03

DOI：10.1063/1.4813074

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摘要

En 中文

A quantum junction solar cell architecture was recently reported that employs colloidal quantum dots (CQDs) on each side of the p-n junction. This architecture extends the range of design opportunities for CQD photovoltaics, since the bandgap can be tuned across the light-absorbing semiconductor layer via control over CQD size, employing solution-processed, room-temperature fabricated materials. We exploit this feature by designing and demonstrating a field-enhanced heterojunction architecture. We optimize the electric field profile within the solar cell through bandgap engineering, thereby improving carrier collection and achieving an increased open circuit voltage, resulting in a 12% improvement in power conversion efficiency. (C) 2013 AIP Publishing LLC.

Keyword:

SOLAR-CELLS

DOT PHOTOVOLTAICS

EFFECT TRANSISTORS

SOLIDS

PHOTODETECTORS

PBSE

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期刊

Applied Physics Letters

IF:

3.6

论文数:

10.4W

被引数:

17.8W

机构

king abdullah university of science & technology

学者数:

1.3W

论文数: 1.3W

被引数: 32

university of toronto

学者数:

14.8W

论文数: 12.0W

被引数: 165

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