Gerrit Boschloo

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Uppsala University
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Sweden

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Positions (1)

Articles (17)

An Indacenodithieno[3,2‐b]thiophene‐based Organic Dye for P‐type Dye‐Sensitized Solar Cells and Photoelectrochemical H<sub>2</sub>O<sub>2</sub> Production

Efficient photosensitizers are crucial for advancing solar energy conversion and storage technologies. In this study, we designed and synthesized a novel organic dye, denoted as YB6, for p‐type dye‐sensitized solar cells (p‐DSCs) and photoelectrochemical H 2 O 2 production. YB6 features an extended conjugated π‐bridge derived from indacenodithieno[3,2‐b]thiophene and exhibits notable advantages: a two‐fold higher molar extinction coefficient at its main absorption peak and a broader absorption as compared to the PB6 dye. In p‐type dye‐sensitized NiO photoelectrochemical cells, the YB6‐based device demonstrated superior performance as compared to the PB6‐based device. It delivered nearly a 50 % higher H 2 O 2 production over 5 hours. Furthermore, when fabricated into p‐DSCs, the YB6‐based device exhibited a 33 % higher power conversion efficiency. This enhancement is caused by suppressed charge recombination from the dye structure, which in turn may be traced to a larger thermodynamic up‐hill process for recombination losses in the YB6‐based system.

Year:

2024

Collaborators (8)

Tamara Sloboda

KTH Royal Institute of Technology

SWEDEN

Mónica Lira-Cantú

-

SPAIN

Håkan Rensmo

Prof. in Physics

Uppsala University

SWEDEN

Jesper Jacobsson

-

SWEDEN

Haining Tian

-

SWEDEN

Erik M. J. Johansson

Uppsala University

SWEDEN

Carl Hägglund

Associate Professor / Senior Lecturer

Uppsala University

SWEDEN

Tomas Kubart

Senior lecturer

Uppsala University

SWEDEN
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