Characterization of mocvd-prepared cis solar cells

Seung Hoon Lee, Gyu Hyun Lee, Hae Seok Lee, Donghwan Kim, Yoon Mook Kang

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Chalcopyrite Cu(In,Ga)Se2 (CIGS) solar cells prepared via metal-organic chemical vapor deposition (MOCVD) are one of the candidates for highly advanced photovoltaic devices. This is because of their effectiveness and potential for reducing production costs through large-scale production. However, research on MOCVD-prepared solar cells is progressing slower than that on other types of solar cells, primarily because the preparation of CuInSe2 (CIS)-based films via MOCVD is relatively more sophisticated. In this study, we analyzed CIS solar cells prepared via three-stage MOCVD and processed with relatively simple precursors and techniques. We achieved an energy-conversion efficiency of 7.39% without applying a buffer layer. Instead, we applied a Cu-deficient layer to create a buried pn junction. Ultimately, we demonstrated that the fabrication of fully-MOCVD-processed CIS photovoltaic devices is feasible.

Original languageEnglish
Article number7721
JournalEnergies
Volume14
Issue number22
DOIs
Publication statusPublished - 2021 Nov 1

Bibliographical note

Funding Information:
Author Contributions: Conceptualization, S.H.L.; methodology, S.H.L.; validation, S.H.L. and Y.K.; Auftohromr aClo anntarliybsuisti, oSn.Hs:.LC.o; inncveepsttuigaalitzioatni,oSn.,HS..LH.;. Lre.;smouertcheosd, oGl.oHg.yL,.S; .dHa.tLa. c; uvraalitdioanti,o Sn.H, S.L.H.;. wL.raitnindgY—.Ko.r;ig-forminaall danraaflty spirse,pSa.Hra.tLio.;ni,n Sv.Hes.tLig.;a wtiorinti,nSg.—H.rLe.v;ireewso aunrdcees,dGiti.nHg.,L S.;.Hda.Lta.; cvuisruaatiloizna,tiSo.Hn,.LS..H; w.Lr.i;tsinugp—ervi-sion, D.K.; project administration, H.-S.L.; funding acquisition, H.-S.L. All authors have read and sion, D.K.; project administration, H.-S.L.; funding acquisition, H.-S.L. All authors have read and Funding: This work was supported by the “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), and granted financial resources from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20204010600470). resources from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20204010600470). This work was also supported by the KU-KIST Graduate School Project.

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • Buried junction
  • CIGS solar cell
  • EBIC
  • MOCVD
  • MOCVD-prepared CIGS

ASJC Scopus subject areas

  • Control and Optimization
  • Energy (miscellaneous)
  • Engineering (miscellaneous)
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment

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