Amorphous Cu–In–S Nanoparticles as Precursors for CuInSe 2 Thin‐Film Solar Cells with a High Efficiency

CuInSe 2 (CISe) absorber layers for thin‐film solar cells were fabricated through the selenization of amorphous Cu–In–S nanoparticles, which were prepared by using a low‐temperature colloidal process within one minute without any external heating. Two strategies for obtaining highly dense CISe absor...

Full description

Saved in:
Bibliographic Details
Published in:ChemSusChem 2013-07, Vol.6 (7), p.1282-1287
Main Authors: Ahn, SeJin, Choi, Yoo Jeong, Kim, Kyunhwan, Eo, Young‐Joo, Cho, Ara, Gwak, Jihye, Yun, Jae Ho, Shin, Keeshik, Ahn, Seoung Kyu, Yoon, Kyunghoon
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:CuInSe 2 (CISe) absorber layers for thin‐film solar cells were fabricated through the selenization of amorphous Cu–In–S nanoparticles, which were prepared by using a low‐temperature colloidal process within one minute without any external heating. Two strategies for obtaining highly dense CISe absorber films were used in this work; the first was the modification of nanoparticle surface through chelate complexation with ethanolamine, and the second strategy utilized the lattice expansion that occurred when S atoms in the precursor particles were replaced with Se during selenization. The synergy of these two strategies allowed formation of highly dense CISe thin films, and devices fabricated using the absorber layer demonstrated efficiencies of up to 7.94 % under AM 1.5G illumination without an anti‐reflection coating.
ISSN:1864-5631
1864-564X
DOI:10.1002/cssc.201200894