Seeking an ultra-compact new architecture or strategy to achieve filter-less Red/Green/Blue (RGB) color sensing is critical for developing a wide range of high-resolution, low-cost and flexible color discrimination and imaging applications. In this work, a new inversely stacked biomimetic radial junction (RJ) PINIP photodetector, comprising of coaxial multilayers of intrinsic and doped hydrogenated amorphous Si (a-Si:H) thin films coated over silicon nanowires (SiNWs), is demonstrated, which can accomplish bias-selected and tunable spectrum responses to the R, G and B color bands, mimicking the response mechanism in human eyes. Compared to the Bayer matrix sensors, the width of a fundamental RJ-PINIP sensing unit is reduced from ∼3 μ m to <500 nm, with an absorber i-layer thinned substantially from ∼1 μ m to only ∼50 nm, which is particularly important to achieve a faster photo response and suppress the instability issues in a-Si:H absorber. Notably, the 3D RJ-PIN...

中文翻译：

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偏置选择的全红色/绿色/蓝色色彩感测和成像基于反向堆叠的径向PINIP结

寻求一种超紧凑的新架构或策略来实现无滤镜的红/绿/蓝（RGB）色彩感应，对于开发各种高分辨率，低成本和灵活的色彩辨别和成像应用至关重要。在这项工作中，展示了一种新型的反向堆叠仿生径向结（RJ）PINIP光电探测器，该探测器包括同轴的多层本征和掺杂的氢化非晶硅（a-Si：H）薄膜，覆盖在硅纳米线（SiNWs）上，可以完成对R，G和B色带的偏置选择和可调光谱响应，模仿人眼的响应机制。与拜耳矩阵传感器相比，基本的RJ-PINIP传感单元的宽度从〜3μm减小到<500 nm，而吸收体i层从〜1μm显着减薄到只有〜50 nm，这对于实现更快的光响应并抑制a-Si：H吸收剂的不稳定性问题特别重要。值得注意的是，3D RJ-PIN ...