TAEWOOK KIM Kim, Sung Hyun Shim, Jae Won Hwang, Do Kyung 2024-01-12T02:34:30Z 2024-01-12T02:34:30Z 2022-11-18 2022-12 2095-2759 https://pubs.kist.re.kr/handle/201004/75899 Energy harvesting and light detection are key technologies in various emerging optoelectronic applications. The high absorption capability and bandgap tunability of organic semiconductors make them promising candidates for such applications. Herein, a poly(3-hexylthiophene-2,5-diyl) (P3HT):indene-C60 bisadduct (ICBA) bulk heterojunction-based organic photodiode (OPD) was reported, demonstrating dual functionality as an indoor photovoltaic (PV) and as a high-speed photodetector. This OPD demonstrated decent indoor PV performance with a power conversion efficiency (PCE) of (11.6？±？0.5)% under a light emitting diode (LED) lamp with a luminance of 1000 lx. As a photodetector, this device exhibited a decent photoresponsivity of 0.15 A/W (green light) with an excellent linear dynamic range (LDR) of over 127 dB within the optical power range of 3.74？×？10？7 to 9.6？×？10？2 W/cm2. Furthermore, fast photoswitching behaviors could be observed with the rising/falling times of 14.5/10.4 μs and a cutoff (3 dB) frequency of 37 kHz. These results might pave the way for further development of organic optoelectronic applications. English Higher Education Press Limited Company Organic photodiode with dual functions of indoor photovoltaic and high-speed photodetector Article 10.1007/s12200-022-00024-5 1 Frontiers of Optoelectronics, v.15, no.1 Frontiers of Optoelectronics 15 1 N scopus 2-s2.0-85128974878