Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia.
Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1, 119991 Moscow, Russia.
Molecules. 2023 Jan 2;28(1):368. doi: 10.3390/molecules28010368.
Photodetectors based on organic materials are attractive due to their tunable spectral response and biocompatibility, meaning that they are a promising platform for an artificial human eye. To mimic the photoelectric response of the human eye, narrowband spectrally-selective organic photodetectors are in great demand, and single-component organic photodetectors based on donor-acceptor conjugated molecules are a noteworthy candidate. In this work, we present single-component selective full-color organic photodetectors based on donor-acceptor conjugated molecules synthetized to mimic the spectral response of the cones and rods of a human eye. The photodetectors demonstrated a high responsivity (up to 70 mA/W) with a response time of less than 1 µs, which is three orders of magnitude faster than that of human eye photoreceptors. Our results demonstrate the possibility of the creation of an artificial eye or photoactive eye "prostheses".
基于有机材料的光电探测器因其可调谐的光谱响应和生物相容性而备受关注，这意味着它们是人工眼睛的一个有前途的平台。为了模拟人眼的光电响应，对窄带光谱选择性有机光电探测器的需求很大，基于给体-受体共轭分子的单组分有机光电探测器就是一个值得关注的候选者。在这项工作中，我们提出了基于合成的给体-受体共轭分子的单组分选择性全色有机光电探测器，以模拟人眼的锥体细胞和杆体细胞的光谱响应。所制备的光电探测器具有高达 70 mA/W 的高光响应度和小于 1 µs 的响应时间，这比人眼感光器的速度快三个数量级。我们的研究结果表明，创造人工眼或光活性眼“假体”是有可能的。
