journal article·2017-11-29

High-Performance Solid-State PbS Quantum Dot-Sensitized Solar Cells Prepared by Introduction of Hybrid Perovskite Interlayer

Jin Hyuck Heo, Min Hyuk Jang, Min Ho Lee, Dong Hee Shin, Do Hun Kim, Sang Hwa Moon, Sang Wook Kim, Bum Jun Park, Sang Hyuk Im

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Abstract

High-performance solid-state PbS quantum dot-sensitized solar cells (QD-SSCs) with stable 9.2% power conversion efficiency at 1 Sun condition are demonstrated by introduction of hybrid perovskite interlayer. The PbS QDs formed on mesoscopic TiO 2 (mp-TiO 2 ) by spin-assisted successive precipitation and anionic exchange reaction method do not exhibit PbSO 4 but have PbSO 3 oxidation species. By introducing perovskite interlayer in between mp-TiO 2 /PbS QDs and poly-3-hexylthiophene, the PbSO 3 oxidation species are fully removed in the PbS QDs and thereby the efficiency of PbS QD-SSCs is enhanced over 90% compared to the pristine PbS QD-SSCs.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Advanced Photocatalysis Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 136-713, Republic of Korea

Department of Molecular Science and Technology, Ajou University, Suwon 443-749, Republic of Korea

Functional Crystallization Center (ERC), Department of Chemical Engineering, Kyung Hee University, 1732 Deogyoung-daero, Yongin-si, Gyeonggi-do, Republic of Korea

Funding

National Research Foundation of Korea · Kyung Hee University

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