A transparent conducting oxide as an efficient middle electrode for flexible organic tandem solar cells

Bong Joon Lee; Hyo Jung Kim; Won ik Jeong; Jang Joo Kim

doi:10.1016/j.solmat.2009.11.021

A transparent conducting oxide as an efficient middle electrode for flexible organic tandem solar cells

Bong Joon Lee, Hyo Jung Kim, Won ik Jeong, Jang Joo Kim

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

We demonstrate an efficient middle electrode of indium zinc oxides (IZOs) for flexible organic tandem solar cells. A bulk hetero-junction polymer solar cell and a bi-layer hetero-junction organic solar cell are used as the bottom and top cell, respectively. Insertion of a thin interfacial layer of Rb₂CO₃ or Cs₂CO₃ between the polymer and IZO and UV-ozone treatment of the IZO surface results in Ohmic contact with the top and bottom cells, respectively. The tandem devices showed that the open circuit voltage (V_oc) was almost the same as the sum of the V_oc of the individual cells with a fill factor of 0.57. The tandem devices fabricated on flexible PES substrate showed comparable results.

Original language	English (US)
Pages (from-to)	542-546
Number of pages	5
Journal	Solar Energy Materials and Solar Cells
Volume	94
Issue number	3
DOIs	https://doi.org/10.1016/j.solmat.2009.11.021
State	Published - Mar 2010

Keywords

CsCO
Flexible tandem organic solar cell
IZO
Interface modification
Middle electrode
RbCO

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title = "A transparent conducting oxide as an efficient middle electrode for flexible organic tandem solar cells",

abstract = "We demonstrate an efficient middle electrode of indium zinc oxides (IZOs) for flexible organic tandem solar cells. A bulk hetero-junction polymer solar cell and a bi-layer hetero-junction organic solar cell are used as the bottom and top cell, respectively. Insertion of a thin interfacial layer of Rb2CO3 or Cs2CO3 between the polymer and IZO and UV-ozone treatment of the IZO surface results in Ohmic contact with the top and bottom cells, respectively. The tandem devices showed that the open circuit voltage (Voc) was almost the same as the sum of the Voc of the individual cells with a fill factor of 0.57. The tandem devices fabricated on flexible PES substrate showed comparable results.",

keywords = "CsCO, Flexible tandem organic solar cell, IZO, Interface modification, Middle electrode, RbCO",

author = "{Joon Lee}, Bong and {Jung Kim}, Hyo and Jeong, {Won ik} and Kim, {Jang Joo}",

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TY - JOUR

T1 - A transparent conducting oxide as an efficient middle electrode for flexible organic tandem solar cells

AU - Joon Lee, Bong

AU - Jung Kim, Hyo

AU - Jeong, Won ik

AU - Kim, Jang Joo

PY - 2010/3

Y1 - 2010/3

N2 - We demonstrate an efficient middle electrode of indium zinc oxides (IZOs) for flexible organic tandem solar cells. A bulk hetero-junction polymer solar cell and a bi-layer hetero-junction organic solar cell are used as the bottom and top cell, respectively. Insertion of a thin interfacial layer of Rb2CO3 or Cs2CO3 between the polymer and IZO and UV-ozone treatment of the IZO surface results in Ohmic contact with the top and bottom cells, respectively. The tandem devices showed that the open circuit voltage (Voc) was almost the same as the sum of the Voc of the individual cells with a fill factor of 0.57. The tandem devices fabricated on flexible PES substrate showed comparable results.

AB - We demonstrate an efficient middle electrode of indium zinc oxides (IZOs) for flexible organic tandem solar cells. A bulk hetero-junction polymer solar cell and a bi-layer hetero-junction organic solar cell are used as the bottom and top cell, respectively. Insertion of a thin interfacial layer of Rb2CO3 or Cs2CO3 between the polymer and IZO and UV-ozone treatment of the IZO surface results in Ohmic contact with the top and bottom cells, respectively. The tandem devices showed that the open circuit voltage (Voc) was almost the same as the sum of the Voc of the individual cells with a fill factor of 0.57. The tandem devices fabricated on flexible PES substrate showed comparable results.

KW - CsCO

KW - Flexible tandem organic solar cell

KW - IZO

KW - Interface modification

KW - Middle electrode

KW - RbCO

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DO - 10.1016/j.solmat.2009.11.021

M3 - Article

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SN - 0927-0248

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JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

IS - 3

ER -

A transparent conducting oxide as an efficient middle electrode for flexible organic tandem solar cells

Abstract

Keywords

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