Self-assembled chalcopyrite ternary semiconductor CuBSe2 nanocrystals

Solvothermal synthesis and characterisation

Lin Jer Chen, Jiunn-Der Liao, Yu Ju Chuang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Chalcopyrites are important contenders among thin-film solar cells due to their direct band gap and higher absorption coefficient. Copper-boron-selenium (CuBSe2) is a chalcopyrite material with a near-optimum band gap of ∼3.13 eV. Semiconductor CuBSe2 nanorods were successfully prepared via a relatively simple and convenient solvothermal route. The device parameters for a single junction CuBSe2 solar cell under AM 1.5 G are as follows: open circuit voltage of 310 mV, short-circuit current of 25.5 mA cm-2, fill factor of 24%, and a power conversion efficiency of 1.89%. Based on a series of comparative experiments under various reaction conditions, the probable formation mechanism of crystals CuBSe2 nanorods is proposed.

Original languageEnglish
Pages (from-to)2909-2914
Number of pages6
JournalCrystEngComm
Volume13
Issue number8
DOIs
Publication statusPublished - 2011 Apr 21

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Nanorods
Nanocrystals
nanorods
nanocrystals
Energy gap
solar cells
Semiconductor materials
Boron
Selenium
Open circuit voltage
synthesis
short circuit currents
selenium
open circuit voltage
Short circuit currents
Conversion efficiency
Copper
absorptivity
Solar cells
boron

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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abstract = "Chalcopyrites are important contenders among thin-film solar cells due to their direct band gap and higher absorption coefficient. Copper-boron-selenium (CuBSe2) is a chalcopyrite material with a near-optimum band gap of ∼3.13 eV. Semiconductor CuBSe2 nanorods were successfully prepared via a relatively simple and convenient solvothermal route. The device parameters for a single junction CuBSe2 solar cell under AM 1.5 G are as follows: open circuit voltage of 310 mV, short-circuit current of 25.5 mA cm-2, fill factor of 24{\%}, and a power conversion efficiency of 1.89{\%}. Based on a series of comparative experiments under various reaction conditions, the probable formation mechanism of crystals CuBSe2 nanorods is proposed.",
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Self-assembled chalcopyrite ternary semiconductor CuBSe2 nanocrystals : Solvothermal synthesis and characterisation. / Chen, Lin Jer; Liao, Jiunn-Der; Chuang, Yu Ju.

In: CrystEngComm, Vol. 13, No. 8, 21.04.2011, p. 2909-2914.

Research output: Contribution to journalArticle

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