TY - JOUR
T1 - Hybrid Perovskite-Organic Flexible Tandem Solar Cell Enabling Highly Efficient Electrocatalysis Overall Water Splitting
AU - LI, Zhen
AU - WU, Shengfan
AU - ZHANG, Jie
AU - LEE, Ka Chun
AU - LEI, Hang
AU - LIN, Francis
AU - WANG, Zilong
AU - ZHU, Zonglong
AU - JEN, Alex K. Y.
PY - 2020/5/12
Y1 - 2020/5/12
N2 - Perovskite-organic tandem solar cells are attracting more attention due to their potential for highly efficient and flexible photovoltaic device. In this work, efficient perovskite-organic monolithic tandem solar cells integrating the wide bandgap perovskite (1.74 eV) and low bandgap organic active PBDB-T:SN6IC-4F (1.30 eV) layer, which serve as the top and bottom subcell, respectively, are developed. The resulting perovskite-organic tandem solar cells with passivated wide-bandgap perovskite show a remarkable power conversion efficiency (PCE) of 15.13%, with an open-circuit voltage (Voc) of 1.85 V, a short-circuit photocurrent (Jsc) of 11.52 mA cm−2, and a fill factor (FF) of 70.98%. Thanks to the advantages of low temperature fabrication processes and the flexibility properties of the device, a flexible tandem solar cell which obtain a PCE of 13.61%, with Voc of 1.80 V, Jsc of 11.07 mA cm−2, and FF of 68.31% is fabricated. Moreover, to demonstrate the achieved high Voc in the tandem solar cells for potential applications, a photovoltaic (PV)-driven electrolysis system combing the tandem solar cell and water splitting electrocatalysis is assembled. The integrated device demonstrates a solar-to-hydrogen efficiency of 12.30% and 11.21% for rigid, and flexible perovskite-organic tandem solar cell based PV-driven electrolysis systems, respectively.
AB - Perovskite-organic tandem solar cells are attracting more attention due to their potential for highly efficient and flexible photovoltaic device. In this work, efficient perovskite-organic monolithic tandem solar cells integrating the wide bandgap perovskite (1.74 eV) and low bandgap organic active PBDB-T:SN6IC-4F (1.30 eV) layer, which serve as the top and bottom subcell, respectively, are developed. The resulting perovskite-organic tandem solar cells with passivated wide-bandgap perovskite show a remarkable power conversion efficiency (PCE) of 15.13%, with an open-circuit voltage (Voc) of 1.85 V, a short-circuit photocurrent (Jsc) of 11.52 mA cm−2, and a fill factor (FF) of 70.98%. Thanks to the advantages of low temperature fabrication processes and the flexibility properties of the device, a flexible tandem solar cell which obtain a PCE of 13.61%, with Voc of 1.80 V, Jsc of 11.07 mA cm−2, and FF of 68.31% is fabricated. Moreover, to demonstrate the achieved high Voc in the tandem solar cells for potential applications, a photovoltaic (PV)-driven electrolysis system combing the tandem solar cell and water splitting electrocatalysis is assembled. The integrated device demonstrates a solar-to-hydrogen efficiency of 12.30% and 11.21% for rigid, and flexible perovskite-organic tandem solar cell based PV-driven electrolysis systems, respectively.
UR - https://scholars.cityu.edu.hk/en/publications/hybrid-perovskiteorganic-flexible-tandem-solar-cell-enabling-highly-efficient-electrocatalysis-overall-water-splitting(763d4bf8-a904-48ae-980a-47d3a8dd28f0).html
U2 - 10.1002/aenm.202000361
DO - 10.1002/aenm.202000361
M3 - Journal Article (refereed)
SN - 1614-6832
VL - 10
JO - Advanced Energy Materials
JF - Advanced Energy Materials
IS - 18
M1 - 2000361
ER -
