Kim, Tae Hyuk Yu, Byoung-Soo Ko, Hyun Woo Park, Na Won Saeed, Muhammad Ahsan Ahn, Jongtae Jo, Suyeon Kim, Dae-Yeon Yoon, Seon Kyu Lee, Kwang-Hoon Jeong, Sang Young Woo, Han Young Kim, Hyunwoo J. Kim, Tae Geun Park, Jaehong Park, Min-Chul Hwang, Do Kyung Shim, Jae Won 2024-01-19T08:04:36Z 2024-01-19T08:04:36Z 2023-12-07 2024-01 0935-9648 https://pubs.kist.re.kr/handle/201004/113107 The development of organic-based optoelectronic technologies for the indoor Internet of Things market, which relies on ambient energy sources, has increased, with organic photovoltaics (OPVs) and photodetectors (OPDs) considered promising candidates for sustainable indoor electronic devices. However, the manufacturing processes of standalone OPVs and OPDs can be complex and costly, resulting in high production costs and limited scalability, thus limiting their use in a wide range of indoor applications. This study uses a multi-component photoactive structure to develop a self-powering dual-functional sensory device with effective energy harvesting and sensing capabilities. The optimized device demonstrates improved free-charge generation yield by quantifying charge carrier dynamics, with a high output power density of over 81 and 76 µW cm−2 for rigid and flexible OPVs under indoor conditions (LED 1000 lx (5200 K)). Furthermore, a single-pixel image sensor is demonstrated as a feasible prototype for practical indoor operating in commercial settings by leveraging the excellent OPD performance with a linear dynamic range of over 130 dB in photovoltaic mode (no external bias). This apparatus with high-performance OPV-OPD characteristics provides a roadmap for further exploration of the potential, which can lead to synergistic effects for practical multifunctional applications in the real world by their mutual relevance. English WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Self-Powering Sensory Device with Multi-Spectrum Image Realization for Smart Indoor Environments Article 10.1002/adma.202307523 1 Advanced Materials, v.36, no.2 Advanced Materials 36 2 N scie scopus 001108754900001 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article ORGANIC PHOTOVOLTAICS CARRIER GENERATION RECOMBINATION POLY(3-HEXYLTHIOPHENE) multi-component photoactive layer multi-spectrum image sensor organic photodiode charge carrier dynamics indoor photovoltaics