Device design rules and operation principles of high-power perovskite solar cells for indoor applications

Ann, Myung Hyun; Kim, Jin-Cheol; Kim, Moonyong; Alosaimi, Ghaida; Kim, Dohyung; Ha, Na Young; Seidel, Jan; Park, Nochang; Yun, Jae Sung; Kim, Jong H.

doi:10.1016/j.nanoen.2019.104321

Cited by 83 publications

(83 citation statements)

References 53 publications

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“…[ 12,18 ] In our recent work, we highlighted the importance of reducing the trap density at the perovskite/electron transport layer (ETL) interface, which plays a crucial role for device performance under low‐light conditions. [ 19 ] Several approaches for perovskite/ETL interface passivation have been reported. [ 17a,c,20 ] Noh et al.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Hole‐Carrier Selectivity in Wide Bandgap Halide Perovskite Photovoltaic Devices for Indoor Internet of Things Applications

Lee

Choi

Soufiani

et al. 2021

Adv Funct Materials

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Halide perovskite‐based photovoltaic (PV) devices have recently emerged for low energy consumption electronic devices such as Internet of Things (IoT). In this work, an effective strategy to form a hole‐selective layer using phenethylammonium iodide (PEAI) salt is presented that demonstrates unprecedently high open‐circuit voltage of 0.9 V with 18 µW cm−2 under 200 lux (cool white light‐emitting diodes). An appropriate post‐deposited amount of PEAI (2 mg) strongly interacts with the perovskite surface forming a conformal coating of PEAI on the perovskite film surface, which improves the crystallinity and absorption of the film. Here, Kelvin probe force microscopy results indicate the diminished potential difference across the grain boundaries and grain interiors after the PEAI deposition, constructing an electrically and chemically homogeneous surface. Also, the surface becomes more p‐type with a downshift of a valence band maximum, confirmed by ultraviolet photoelectron spectroscopy measurement, facilitating the transport of holes to the hole transport layer (HTL). The hole‐selective layer‐deposited devices exhibit reduced hysteresis in light current density–voltage curves and maintain steadily high fill factor across the different light intensities (200–1000 lux). This work highlights the importance of the HTL/perovskite interface that prepares the indoor halide perovskite PV devices for powering IoT device.

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Section: Introductionmentioning

confidence: 99%

Enhanced Hole‐Carrier Selectivity in Wide Bandgap Halide Perovskite Photovoltaic Devices for Indoor Internet of Things Applications

Lee

Choi

Soufiani

et al. 2021

Adv Funct Materials

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“…Beyond the IPV systems described above, metal halide PSCs have also emerged as a promising alternative for indoor application 66‐70 . Chen et al conducted the first investigation on indoor PSC in 2015, wherein they precisely controlled traps in the perovskite active layer and carrier dynamics via designing electron transfer layer (ETL) and thus successively made a PSC with 27.4% PCE under indoor environment 71 .…”

Section: The Development Of Photovoltaics For Indoor Applicationmentioning

confidence: 99%

Indoor photovoltaics, The Next Big Trend in solution‐processed solar cells

Hou

Amaratunga

2021

InfoMat

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Indoor photovoltaics (IPVs) have attracted considerable interest for their potential to power small and portable electronics and photonic devices. The recent advancemes in circuit design and device optimizations has led to the power required to operate electronics for the internet of things (IoT), such as distributed sensors, remote actuators, and communication devices, being remarkably reduced. Therefore, various types of sensors and a large number of nodes can be wireless or even batteryless powered by IPVs. In this review, we provide a comprehensive overview of the recent developments in IPVs. We primarily focus on third‐generation solution‐processed solar cell technologies, which include organic solar cells, dye‐sensitized solar cells, perovskite solar cells, and newly developed colloidal quantum dot indoor solar cells. Besides, the device design principles are also discussed in relation to the unique characteristics of indoor lighting conditions. Challenges and prospects for the development of IPV are also summarized, which, hopefully, can lead to a better understanding of future IPV design as well as performance enhancement.

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“…In particular, trap states could dominate PV performance under low light conditions, since there are not enough photocarriers to ll these traps, leading to inefficient charge separation at the interfaces and perovskite grain boundaries as well as high leakage current. 53 Therefore, current strategies for performance enhancement of PPVs under low light have been mainly focused on compositional engineering in order to reduce the defect density of the perovskite materials, and through interfacial engineering in order to suppress the leakage current and improve the charge extraction at the interfaces. 51,53,54 Dagar et al used a SnO 2 /MgO double ETL in the PPV device to rectify the dark J-V curves by effectively reducing the number of pin holes and blocking the perovskite-electrode contact.…”

Section: Ppvs For Indoor Applicationmentioning

confidence: 99%

“…53 Therefore, current strategies for performance enhancement of PPVs under low light have been mainly focused on compositional engineering in order to reduce the defect density of the perovskite materials, and through interfacial engineering in order to suppress the leakage current and improve the charge extraction at the interfaces. 51,53,54 Dagar et al used a SnO 2 /MgO double ETL in the PPV device to rectify the dark J-V curves by effectively reducing the number of pin holes and blocking the perovskite-electrode contact. 55 A PCE of 26.9% under 400 lx LED illumination was achieved, representing a 20% enhancement compared to the device only employing a SnO 2 layer.…”

Section: Ppvs For Indoor Applicationmentioning

confidence: 99%

Indoor application of emerging photovoltaics—progress, challenges and perspectives

et al. 2020

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Device design rules and operation principles of high-power perovskite solar cells for indoor applications

Cited by 83 publications

References 53 publications

Enhanced Hole‐Carrier Selectivity in Wide Bandgap Halide Perovskite Photovoltaic Devices for Indoor Internet of Things Applications

Enhanced Hole‐Carrier Selectivity in Wide Bandgap Halide Perovskite Photovoltaic Devices for Indoor Internet of Things Applications

Indoor photovoltaics, The Next Big Trend in solution‐processed solar cells

Indoor application of emerging photovoltaics—progress, challenges and perspectives

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