TY  - JOUR
AU  - Saboor, Abdus
AU  - Stroyuk, Oleksandr
AU  - Raievska, Oleksandra
AU  - Liu, Chao
AU  - Hauch, Jens
AU  - Brabec, Christoph
TI  - ZnO quantum dots as an electron-transport layer for highly efficient and stable organic solar cells
JO  - Nanoscale
VL  - 17
IS  - 28
SN  - 2040-3364
CY  - Cambridge
PB  - RSC Publ.
M1  - FZJ-2025-03324
SP  - 16873 - 16881
PY  - 2025
AB  - An advanced protocol for the mild synthesis of stable and concentrated ZnO quantum dots (QDs) yields colloidal inks suitable for applications in electron-transport layers (ETLs) of organic solar cells, delivering superior power conversion efficiency (PCE) and photodegradation stability as compared to bulk-like commercially available ZnO inks. The champion ZnO QDs-based devices with a quaternary PM6 : L8BO : BTP-eC9 : PC70BM absorber exhibit a PCE of 18.86%, surpassing similar cells with bulk-like ZnO ETL (18.15%). The ZnO QDs exhibited size-dependent electron-transport efficiency, with the highest performance achieved for QDs of 4.4–4.5 nm, decreasing for larger QDs down to the level of the bulk-like ZnO reference. A correlation between the photoluminescence and electron-transport efficiencies of ZnO quantum dots (QDs) was observed and interpreted in terms of an interplay between the defect state density and exciton confinement in size-selected ZnO QDs.
LB  - PUB:(DE-HGF)16
C6  - 40613427
UR  - <Go to ISI:>//WOS:001522507300001
DO  - DOI:10.1039/D5NR01722J
UR  - https://juser.fz-juelich.de/record/1044675
ER  -