Hybrid solar cells based on tetrapod nanocrystals: The effects of compositions and type II heterojunction on hybrid solar cell performance

Hyunju Lee, Sungwon Kim, Won Suk Chung, Kyungkon Kim, Donghwan Kim

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We synthesized oleic acid capped tetrapod nanocrystals of CdSe, CdTe and type II heterostructured CdTe/CdSe to investigate the effects of nanocrystal compositions and type II heterojunction on the photovoltaic properties of hybrid solar cells. The hybrid solar cell based on the blend of CdSe tetrapod nanocrystals and P3HT with a weight ratio of 6:1 showed the maximum power conversion efficiency of 1.03% under AM 1.5 G condition, and the maximum incident photon to current conversion efficiency of the solar cell was 43% at 415 nm. Although CdTe and CdTe/CdSe tetrapod nanocrystals showed relatively poor performance, the power conversion efficiency and the short circuit current density of the hybrid solar cell based on type II heterostructured CdTe/CdSe tetrapod nanocrystals was 4.4 and 3.9 times higher than that of the solar cell based on CdTe tetrapod nanocrystals, respectively. These results can be explained by the effects of nanocrystal compositions and type II heterojunction on the photovoltaic properties of hybrid solar cells.

Original languageEnglish
Pages (from-to)446-452
Number of pages7
JournalSolar Energy Materials and Solar Cells
Volume95
Issue number2
DOIs
Publication statusPublished - 2011 Feb 1

Fingerprint

Nanocrystals
Heterojunctions
Solar cells
Chemical analysis
Conversion efficiency
Oleic acid
Oleic Acid
Short circuit currents
Current density
Photons

Keywords

  • CdTe/CdSe tetrapod nanocrystals
  • Hybrid solar cells
  • Oleic acid capped tetrapod nanocrystals
  • P3HT
  • Type ii heterojunction

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films

Cite this

Hybrid solar cells based on tetrapod nanocrystals : The effects of compositions and type II heterojunction on hybrid solar cell performance. / Lee, Hyunju; Kim, Sungwon; Chung, Won Suk; Kim, Kyungkon; Kim, Donghwan.

In: Solar Energy Materials and Solar Cells, Vol. 95, No. 2, 01.02.2011, p. 446-452.

Research output: Contribution to journalArticle

@article{47392ae2f8dd4a2d93abce3ede205e09,
title = "Hybrid solar cells based on tetrapod nanocrystals: The effects of compositions and type II heterojunction on hybrid solar cell performance",
abstract = "We synthesized oleic acid capped tetrapod nanocrystals of CdSe, CdTe and type II heterostructured CdTe/CdSe to investigate the effects of nanocrystal compositions and type II heterojunction on the photovoltaic properties of hybrid solar cells. The hybrid solar cell based on the blend of CdSe tetrapod nanocrystals and P3HT with a weight ratio of 6:1 showed the maximum power conversion efficiency of 1.03{\%} under AM 1.5 G condition, and the maximum incident photon to current conversion efficiency of the solar cell was 43{\%} at 415 nm. Although CdTe and CdTe/CdSe tetrapod nanocrystals showed relatively poor performance, the power conversion efficiency and the short circuit current density of the hybrid solar cell based on type II heterostructured CdTe/CdSe tetrapod nanocrystals was 4.4 and 3.9 times higher than that of the solar cell based on CdTe tetrapod nanocrystals, respectively. These results can be explained by the effects of nanocrystal compositions and type II heterojunction on the photovoltaic properties of hybrid solar cells.",
keywords = "CdTe/CdSe tetrapod nanocrystals, Hybrid solar cells, Oleic acid capped tetrapod nanocrystals, P3HT, Type ii heterojunction",
author = "Hyunju Lee and Sungwon Kim and Chung, {Won Suk} and Kyungkon Kim and Donghwan Kim",
year = "2011",
month = "2",
day = "1",
doi = "10.1016/j.solmat.2010.08.029",
language = "English",
volume = "95",
pages = "446--452",
journal = "Solar Energy Materials and Solar Cells",
issn = "0927-0248",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Hybrid solar cells based on tetrapod nanocrystals

T2 - The effects of compositions and type II heterojunction on hybrid solar cell performance

AU - Lee, Hyunju

AU - Kim, Sungwon

AU - Chung, Won Suk

AU - Kim, Kyungkon

AU - Kim, Donghwan

PY - 2011/2/1

Y1 - 2011/2/1

N2 - We synthesized oleic acid capped tetrapod nanocrystals of CdSe, CdTe and type II heterostructured CdTe/CdSe to investigate the effects of nanocrystal compositions and type II heterojunction on the photovoltaic properties of hybrid solar cells. The hybrid solar cell based on the blend of CdSe tetrapod nanocrystals and P3HT with a weight ratio of 6:1 showed the maximum power conversion efficiency of 1.03% under AM 1.5 G condition, and the maximum incident photon to current conversion efficiency of the solar cell was 43% at 415 nm. Although CdTe and CdTe/CdSe tetrapod nanocrystals showed relatively poor performance, the power conversion efficiency and the short circuit current density of the hybrid solar cell based on type II heterostructured CdTe/CdSe tetrapod nanocrystals was 4.4 and 3.9 times higher than that of the solar cell based on CdTe tetrapod nanocrystals, respectively. These results can be explained by the effects of nanocrystal compositions and type II heterojunction on the photovoltaic properties of hybrid solar cells.

AB - We synthesized oleic acid capped tetrapod nanocrystals of CdSe, CdTe and type II heterostructured CdTe/CdSe to investigate the effects of nanocrystal compositions and type II heterojunction on the photovoltaic properties of hybrid solar cells. The hybrid solar cell based on the blend of CdSe tetrapod nanocrystals and P3HT with a weight ratio of 6:1 showed the maximum power conversion efficiency of 1.03% under AM 1.5 G condition, and the maximum incident photon to current conversion efficiency of the solar cell was 43% at 415 nm. Although CdTe and CdTe/CdSe tetrapod nanocrystals showed relatively poor performance, the power conversion efficiency and the short circuit current density of the hybrid solar cell based on type II heterostructured CdTe/CdSe tetrapod nanocrystals was 4.4 and 3.9 times higher than that of the solar cell based on CdTe tetrapod nanocrystals, respectively. These results can be explained by the effects of nanocrystal compositions and type II heterojunction on the photovoltaic properties of hybrid solar cells.

KW - CdTe/CdSe tetrapod nanocrystals

KW - Hybrid solar cells

KW - Oleic acid capped tetrapod nanocrystals

KW - P3HT

KW - Type ii heterojunction

UR - http://www.scopus.com/inward/record.url?scp=84860745292&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84860745292&partnerID=8YFLogxK

U2 - 10.1016/j.solmat.2010.08.029

DO - 10.1016/j.solmat.2010.08.029

M3 - Article

AN - SCOPUS:84860745292

VL - 95

SP - 446

EP - 452

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

SN - 0927-0248

IS - 2

ER -