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--化物纳米晶体用于灵敏的未冷却的中红外焦平面阵列成像仪,带有单体读出集成

Yifan Chen¹, Qi Wei², Shuixian Yang¹

¹School of Electronics and Information Technology, Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and Systems, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, 510006, China.

Advanced materials (Deerfield Beach, Fla.)

|June 27, 2025

概括

研究人员开发了一种低成本,未冷却的中红外焦平面阵列 (FPA) 成像仪,使用化纳米晶. 这一创新降低了成本,并提高了气体泄漏检测等应用的性能.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
红外成像技术红外成像技术

背景情况:

中红外焦平面阵列 (FPA) 成像仪非常重要,但由于复杂的包装和制造而昂贵.
传统方法涉及冷dewars和翻转芯片技术,增加生产成本.

研究的目的:

开发一种简单,低成本,未冷却的中红外FPA成像仪.
为了证明PbSnSe纳米晶体光探测器与基于玻璃的读出集成电路 (ROIC) 的单体集成.

主要方法:

PbS/PbSnSe/ZnO PIN异质连接光探测器与基于玻璃的ROIC的单体集成.
在PbSe纳米晶体中利用Sn-doping来减少热噪声和优化带结构.

主要成果:

在0.5V时达到2.7 x 10^-7 A mm^-2的暗电流,在4.25μm时达到7.46 × 10^9斯的探测能力.
证明了出色的空气稳定性 (96.7%的性能在360天后在300K).
64x64像素未冷却的中红外FPA实现了133mK的热灵敏度.

结论:

开发的异质连接光探测器和FPA为未冷却的中红外成像提供了具有成本效益和高性能的解决方案.
潜在的应用包括光谱成像,气体泄漏检测和化学试剂识别.

关键词:

焦点平面阵列成像器的成像器中红外光电性能在中红外光电性能.纳米晶体合成合成的方法光探测器,没有冷却的热成像.

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