Publication date: Jun 07, 2023
Distributed photovoltaics in living environment harvest the sunlight in different incident angles throughout the day. The development of planer solar cells with large light-receiving angle can reduce the requirements in installation form factor and is therefore urgently required. Here, thin film organic photovoltaics with nano-sized phase separation integrated in micro-sized surface topology is demonstrated as an ideal solution to proposed applications. All-polymer solar cells, by means of a newly developed sequential processing, show large magnitude hierarchical morphology with facilitated exciton-to-carrier conversion. The nano fibrilar donor-acceptor network and micron-scale optical field trapping structure in combination contributes to an efficiency of 19.06% (certified 18.59%), which is the highest value to date for all-polymer solar cells. Furthermore, the micron-sized surface topology also contributes to a large light-receiving angle. A 30% improvement of power gain is achieved for the hierarchical morphology comparing to the flat-morphology devices. These inspiring results show that all-polymer solar cell with hierarchical features are particularly suitable for the commercial applications of distributed photovoltaics due to its low installation requirement.
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Figure2.xlsx
MD5md5:28b067ccf24044f7b6de9e7c1fd8bfdd
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36.8 KiB | Photo-electric performance and statistics of all polymer solar cells. |
Figure3.xlsx
MD5md5:5627be8d5fe0d4a3d536b2678445f0c0
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126.5 KiB | The data of nanoscale fibril crystallization morphology characteristics for all polymer solar cells. |
Figure4.xlsx
MD5md5:535941bc86bb3a3231ddfc01a8fcd6c4
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19.3 KiB | The performance comparison for all polymer solar cells at different light receiving angle based on microscale surface optical morphology. |
Figure5.xlsx
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121.3 KiB | Dissociation and recombination dynamics results based on ultrafast process and devices physical characteristics. |
Table 1.xlsx
MD5md5:2c26dd4f98b3ddc0c5bc4ccf7b73387d
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14.3 KiB | Specific performance parameters in different preparation conditions based on all polymer solar cells. |
Supplementary Table.xlsx
MD5md5:cda177f998f4a98285a049c3344ff817
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65.7 KiB | Specific parameters for morphology characterization and device characterization in Supplementary Tables. |
Supplementary Figure.xlsx
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410.9 KiB | Other relevant data in Supplementary Figures. |
2023.89 (version v1) [This version] | Jun 07, 2023 | DOI10.24435/materialscloud:g4-jw |