{'fraction_non_alphanumeric': 0.03837471783295711, 'fraction_numerical': 0.020316027088036117, 'mean_word_length': 5.117241379310345, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Structural Investigation of Hybrid Organic Photovoltaic Devices with Single-Walled Carbon Nanotubes

In this work, we investigated the effects of single-walled carbon nanotubes (SWNTs) on the device performance of organic photovoltaic devices (OPVs) according to the location of the added SWNTs. When SWNTs were incorporated in OPVs, we found that the power conversion efficiency (PCE) of OPVs depended on the device structure, resulting in improved PCE of 1.89% in SWNTs network layer cell (SNC) at 0.5 wt % SWNTs (37% increase) and 1.57% in SWNTs doped cell (SDC) at 0.25 wt % SWNTs (14% increase) compared to that of 1.38% in the reference device. We concluded that superior performance of SNC was due to more efficient carrier extracting and improved transport behaviors by suppressing the recombination losses without disturbing the intimate conformations of photoactive materials.