Highly efficient inverted polymer solar cells with reduced graphene-oxide-zinc-oxide nanocomposites buffer layer

Hyun Woo Lee; Jin Young Oh; Tae Il Lee; Woo Soon Jang; Young Bum Yoo; Soo Sang Chae; Jee Ho Park; Jae Min Myoung; Kie Moon Song; Hong Koo Baik

doi:10.1063/1.4804645

Highly efficient inverted polymer solar cells with reduced graphene-oxide-zinc-oxide nanocomposites buffer layer

Hyun Woo Lee, Jin Young Oh, Tae Il Lee, Woo Soon Jang, Young Bum Yoo, Soo Sang Chae, Jee Ho Park, Jae Min Myoung, Kie Moon Song, Hong Koo Baik

Department of Materials Science and Engineering

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

24 Citations (Scopus)

Abstract

In this study, we reported a 36 improvement in the performance of inverted solar cells as a result of increased short-circuit current (J_SC) obtained using a composition of zinc oxide (ZnO) and reduced graphene oxide (RGO) as an n-type buffer layer. RGO-ZnO nanocomposites show higher electron conductivity than intrinsic ZnO; moreover, they show reduced contact resistance at the interface between the active layer and n-type buffer layer. These factors prevent carrier loss resulting from defects and recombinations in the device, thereby significantly increasing the J_SC value for the device. Thus, an efficiency of 4.15 was achieved for inverted solar cells with a controlled RGO-ZnO nanocomposites layer.

Original language	English
Article number	193903
Journal	Applied Physics Letters
Volume	102
Issue number	19
DOIs	https://doi.org/10.1063/1.4804645
Publication status	Published - 2013 May 13

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) (Grant Nos. 2012-008721 and 2011-0022765) founded by the government of Korea (MEST).

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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title = "Highly efficient inverted polymer solar cells with reduced graphene-oxide-zinc-oxide nanocomposites buffer layer",

abstract = "In this study, we reported a 36 improvement in the performance of inverted solar cells as a result of increased short-circuit current (JSC) obtained using a composition of zinc oxide (ZnO) and reduced graphene oxide (RGO) as an n-type buffer layer. RGO-ZnO nanocomposites show higher electron conductivity than intrinsic ZnO; moreover, they show reduced contact resistance at the interface between the active layer and n-type buffer layer. These factors prevent carrier loss resulting from defects and recombinations in the device, thereby significantly increasing the JSC value for the device. Thus, an efficiency of 4.15 was achieved for inverted solar cells with a controlled RGO-ZnO nanocomposites layer.",

author = "{Woo Lee}, Hyun and {Young Oh}, Jin and {Il Lee}, Tae and {Soon Jang}, Woo and {Bum Yoo}, Young and {Sang Chae}, Soo and {Ho Park}, Jee and {Min Myoung}, Jae and {Moon Song}, Kie and {Koo Baik}, Hong",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) (Grant Nos. 2012-008721 and 2011-0022765) founded by the government of Korea (MEST). ",

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Highly efficient inverted polymer solar cells with reduced graphene-oxide-zinc-oxide nanocomposites buffer layer. / Woo Lee, Hyun; Young Oh, Jin; Il Lee, Tae; Soon Jang, Woo; Bum Yoo, Young; Sang Chae, Soo; Ho Park, Jee; Min Myoung, Jae; Moon Song, Kie; Koo Baik, Hong.

In: Applied Physics Letters, Vol. 102, No. 19, 193903, 13.05.2013.

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

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AU - Young Oh, Jin

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AU - Bum Yoo, Young

AU - Sang Chae, Soo

AU - Ho Park, Jee

AU - Min Myoung, Jae

AU - Moon Song, Kie

AU - Koo Baik, Hong

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