title: Triple-junction hybrid tandem solar cells with amorphous silicon and polymer-fullerene blends.
abstract: Organic-inorganic hybrid tandem solar cells attract a considerable amount of attention due to their potential for realizing high efficiency photovoltaic devices at a low cost. Here, highly efficient triple-junction (TJ) hybrid tandem solar cells consisting of a double-junction (DJ) amorphous silicon (a-Si) cell and an organic photovoltaic (OPV) rear cell were developed. In order to design the TJ device in a logical manner, a simulation was carried out based on optical absorption and internal quantum efficiency. In the TJ architecture, the high-energy photons were utilized in a more efficient way than in the previously reported a-Si/OPV DJ devices, leading to a significant improvement in the overall efficiency by means of a voltage gain. The interface engineering such as tin-doped In2O3 deposition as an interlayer and its UV-ozone treatment resulted in the further improvement in the performance of the TJ solar cells. As a result, a power conversion efficiency of 7.81% was achieved with an open-circuit voltage of 2.35 V. The wavelength-resolved absorption profile provides deeper insight into the detailed optical response of the TJ hybrid solar cells.
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Taehee
authors.initials: T
authors.lastname: Kim
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Hyeok
authors.initials: H
authors.lastname: Kim
authors.affiliation: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea.
authors.forename: Jinjoo
authors.initials: J
authors.lastname: Park
authors.affiliation: 1] Department of Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-747, Korea [2] Advanced Institutes of Convergence Technology, Suwon, Gyeonggi 443-270, Korea.
authors.forename: Hyungchae
authors.initials: H
authors.lastname: Kim
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Youngwoon
authors.initials: Y
authors.lastname: Yoon
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Sung-Min
authors.initials: SM
authors.lastname: Kim
authors.affiliation: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea.
authors.forename: Chonghoon
authors.initials: C
authors.lastname: Shin
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Heesuk
authors.initials: H
authors.lastname: Jung
authors.affiliation: Electronic Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Inho
authors.initials: I
authors.lastname: Kim
authors.affiliation: Electronic Materials Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Doo Seok
authors.initials: DS
authors.lastname: Jeong
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Honggon
authors.initials: H
authors.lastname: Kim
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Jin Young
authors.initials: JY
authors.lastname: Kim
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: BongSoo
authors.initials: B
authors.lastname: Kim
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Min Jae
authors.initials: MJ
authors.lastname: Ko
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Hae Jung
authors.initials: HJ
authors.lastname: Son
authors.affiliation: 1] Department of Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-747, Korea [2] Advanced Institutes of Convergence Technology, Suwon, Gyeonggi 443-270, Korea.
authors.forename: Changsoon
authors.initials: C
authors.lastname: Kim
authors.affiliation: College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea.
authors.forename: Junsin
authors.initials: J
authors.lastname: Yi
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Seunghee
authors.initials: S
authors.lastname: Han
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul 136-791, Korea.
authors.forename: Doh-Kwon
authors.initials: DK
authors.lastname: Lee