Performance enhancement through post-treatments of CdS-sensitized solar cells fabricated by spray pyrolysis deposition

Yong Hui Lee, Sang Hyuk Im, Jae Hui Rhee, Jong Heun Lee, Sang Il Seok

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The CdS-sensitized solar cells (CdS-SSC) were fabricated by spray pyrolysis deposition (SPD) method. The performance of the cells was greatly improved through post-treatments that included thermal oxidation at 500 °C for 30 min in an air atmosphere and subsequent chemical etching by 40 mM aqueous HCl solution at room temperature for 30 min, as compared to as-deposited CdS-SSC. The CdS-SSC in a I-/I3 - electrolyte system was resulted in the improvement of Jsc (3.3→5.2 mA/cm2), V (697→758 mV), FF (41.4%→46.9%), and (0.95%→1.84%). Similarly, the efficiency of CdS-SSC in a noncorrosive polysulfide electrolyte system was also enhanced by the proposed thermal oxidation and etching process. The increase in the cell efficiency is attributed to the reduced charge recombination among sensitizer themselves through the mitigation of overaggregated CdS sensitizers deposited by SPD.

Original languageEnglish
Pages (from-to)1648-1652
Number of pages5
JournalACS Applied Materials and Interfaces
Volume2
Issue number6
DOIs
Publication statusPublished - 2010 Jun 23

Fingerprint

Spray pyrolysis
Solar cells
Electrolytes
Etching
Polysulfides
Oxidation
Air
Temperature
Hot Temperature

Keywords

  • cadmium oxide
  • cadmium sulfide
  • etching
  • oxidation
  • quantum dot-sensitized solar cell
  • spray pyrolysis deposition

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Performance enhancement through post-treatments of CdS-sensitized solar cells fabricated by spray pyrolysis deposition. / Lee, Yong Hui; Im, Sang Hyuk; Rhee, Jae Hui; Lee, Jong Heun; Seok, Sang Il.

In: ACS Applied Materials and Interfaces, Vol. 2, No. 6, 23.06.2010, p. 1648-1652.

Research output: Contribution to journalArticle

@article{6d14096d95894fceb2d4904bf5053be7,
title = "Performance enhancement through post-treatments of CdS-sensitized solar cells fabricated by spray pyrolysis deposition",
abstract = "The CdS-sensitized solar cells (CdS-SSC) were fabricated by spray pyrolysis deposition (SPD) method. The performance of the cells was greatly improved through post-treatments that included thermal oxidation at 500 °C for 30 min in an air atmosphere and subsequent chemical etching by 40 mM aqueous HCl solution at room temperature for 30 min, as compared to as-deposited CdS-SSC. The CdS-SSC in a I-/I3 - electrolyte system was resulted in the improvement of Jsc (3.3→5.2 mA/cm2), V∞ (697→758 mV), FF (41.4{\%}→46.9{\%}), and (0.95{\%}→1.84{\%}). Similarly, the efficiency of CdS-SSC in a noncorrosive polysulfide electrolyte system was also enhanced by the proposed thermal oxidation and etching process. The increase in the cell efficiency is attributed to the reduced charge recombination among sensitizer themselves through the mitigation of overaggregated CdS sensitizers deposited by SPD.",
keywords = "cadmium oxide, cadmium sulfide, etching, oxidation, quantum dot-sensitized solar cell, spray pyrolysis deposition",
author = "Lee, {Yong Hui} and Im, {Sang Hyuk} and Rhee, {Jae Hui} and Lee, {Jong Heun} and Seok, {Sang Il}",
year = "2010",
month = "6",
day = "23",
doi = "10.1021/am100169t",
language = "English",
volume = "2",
pages = "1648--1652",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "6",

}

TY - JOUR

T1 - Performance enhancement through post-treatments of CdS-sensitized solar cells fabricated by spray pyrolysis deposition

AU - Lee, Yong Hui

AU - Im, Sang Hyuk

AU - Rhee, Jae Hui

AU - Lee, Jong Heun

AU - Seok, Sang Il

PY - 2010/6/23

Y1 - 2010/6/23

N2 - The CdS-sensitized solar cells (CdS-SSC) were fabricated by spray pyrolysis deposition (SPD) method. The performance of the cells was greatly improved through post-treatments that included thermal oxidation at 500 °C for 30 min in an air atmosphere and subsequent chemical etching by 40 mM aqueous HCl solution at room temperature for 30 min, as compared to as-deposited CdS-SSC. The CdS-SSC in a I-/I3 - electrolyte system was resulted in the improvement of Jsc (3.3→5.2 mA/cm2), V∞ (697→758 mV), FF (41.4%→46.9%), and (0.95%→1.84%). Similarly, the efficiency of CdS-SSC in a noncorrosive polysulfide electrolyte system was also enhanced by the proposed thermal oxidation and etching process. The increase in the cell efficiency is attributed to the reduced charge recombination among sensitizer themselves through the mitigation of overaggregated CdS sensitizers deposited by SPD.

AB - The CdS-sensitized solar cells (CdS-SSC) were fabricated by spray pyrolysis deposition (SPD) method. The performance of the cells was greatly improved through post-treatments that included thermal oxidation at 500 °C for 30 min in an air atmosphere and subsequent chemical etching by 40 mM aqueous HCl solution at room temperature for 30 min, as compared to as-deposited CdS-SSC. The CdS-SSC in a I-/I3 - electrolyte system was resulted in the improvement of Jsc (3.3→5.2 mA/cm2), V∞ (697→758 mV), FF (41.4%→46.9%), and (0.95%→1.84%). Similarly, the efficiency of CdS-SSC in a noncorrosive polysulfide electrolyte system was also enhanced by the proposed thermal oxidation and etching process. The increase in the cell efficiency is attributed to the reduced charge recombination among sensitizer themselves through the mitigation of overaggregated CdS sensitizers deposited by SPD.

KW - cadmium oxide

KW - cadmium sulfide

KW - etching

KW - oxidation

KW - quantum dot-sensitized solar cell

KW - spray pyrolysis deposition

UR - http://www.scopus.com/inward/record.url?scp=77955489741&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955489741&partnerID=8YFLogxK

U2 - 10.1021/am100169t

DO - 10.1021/am100169t

M3 - Article

VL - 2

SP - 1648

EP - 1652

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

SN - 1944-8244

IS - 6

ER -