Highly Efficient Self-Encapsulated Flexible Semitransparent Perovskite Solar Cells via Bifacial Cation Exchange

Jeong, Gyujeong; Koo, Donghwan; Woo, Jeong-Hyun; Choi, Yunseong; Son, Eunbin; Huang, Fuzhi; Kim, Ju‐Young; Park, Hyesung

doi:10.1021/acsami.2c08023

Cited by 16 publications

(18 citation statements)

References 35 publications

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“…[ 225 ] Moreover, semitransparent FPSCs are suitable for the preparation of the top cell in four‐terminal tandem flexible devices due to their translucency and adjustable band gaps. [ 226 ] Therefore, semitransparent FPSCs have broad application prospects in multifunctional integrated devices and tandem flexible devices and are worthy of further study. The realization of semitransparent FPSCs requires that all functional layers such as electrodes, perovskites, and carrier transport materials have certain light transmittance.…”

Section: Effective Technologies For Commercializationmentioning

confidence: 99%

“…f-h) Reproduced with permission. [226] Copyright 2022, American Chemical Society. Despite many achievements have been achieved for FPSCs, long-term stability is one of the most critical challenges for their commercialization.…”

Section: Device Encapsulation Technologymentioning

confidence: 99%

mentioning

confidence: 99%

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Functional Layers of Inverted Flexible Perovskite Solar Cells and Effective Technologies for Device Commercialization

Zhuang

Zhou

et al. 2023

Small Structures

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Perovskite solar cells (PSCs) have emerged as a rising star in photovoltaic fields in recent years due to their very impressive properties such as ease of fabrication, low cost, and high-power conversion efficiency (PCE). [1][2][3][4][5][6][7][8][9][10][11] Over the past decade, the PCEs of PSCs have dramatically increased to certified record values of 25.7% and 25.37% for single-junction regular n-i-p and inverted p-i-n PSCs, respectively, owing to excellent properties of perovskite such as high light absorption coefficient, [12] long carrier lifetime, [13,14] and outstanding defect tolerance, [15][16][17] indicating a high potential for commercialization. [1][2][3][18][19][20][21][22][23][24][25][26][27][28][29][30][31] Meanwhile, as electronic technologies advance, the demand for unmanned systems, wearable and portable electronics, multifunctional integrated buildings, aerospace applications, and self-powered bioelectronics grows. [32][33][34][35][36][37][38][39][40] Flexible solar cells may play an important role in the development of these flexible electronic products. Thus, in recent years, researchers' research interests focus on high-performance flexible solar cells. [41][42][43][44][45][46][47] It must be pointed out that the perovskites are more advantageous in fabrication of various flexible devices due to their low-temperature processability and high flexibility comparing with other solar cell materials. [48,49] More specifically, while other flexible solar cells, such as dyesensitized solar cells (DSSCs), cadmium telluride solar cells (CdTe), copper indium gallium selenide solar cells (CIGS), and organic photovoltaic solar cells (OPV), exhibit low PCEs, high cost, complicated fabrication process, and insufficient flexibility, [50][51][52] flexible perovskite solar cells (FPSCs) possess advantages of high PCEs, low cost, simple fabrication process, and sufficient flexibility. [45,48,49] Significantly, FPSCs could even achieve the mass production of devices through the large-area printing strategy of roll-to-roll (R2R) process to accelerate the commercial promotion of PSCs. [52] Thus, the development of FPSCs will accelerate the commercialization of PSCs in the future.Same as rigid PSCs, FPSCs can also be divided into regular n-i-p and inverted p-i-n structures, where the PCE of regular FPSCs has been boosted from 2.62% to 23.60% over the past decade, showing strong development potential. [53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70] However, regular FPSCs still face some problems brought by structural components. Generally, as the most commonly used hole transport material, N2,N2,N2 0 ,N2 0 ,N7,N7,N7 0 ,N7 0 -octakis(4methoxyphenyl)-9,9 0 -spirobi[9H-fluorene]-2,2 0 ,7,7 0 -tetramine (Spiro-OMeTAD) degrades rapidly in ambient environment due

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Section: Effective Technologies For Commercializationmentioning

confidence: 99%

Section: Device Encapsulation Technologymentioning

confidence: 99%

See 1 more Smart Citation

Functional Layers of Inverted Flexible Perovskite Solar Cells and Effective Technologies for Device Commercialization

Zhuang

Zhou

et al. 2023

Small Structures

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“…Unlike the conventional encapsulation method of covering fully stacked PSCs with encapsulation materials, this alternative lamination process allows for a device to be encapsulated while it is being manufactured. The resulting device is typically referred to as a self-encapsulated PSC. , …”

Section: Introductionmentioning

confidence: 99%

“…The resulting device is typically referred to as a self-encapsulated PSC. 23,24 The unique manufacturing process of self-encapsulation allows application of the materials which are not orthogonally processable on the perovskite as charge transport layers. For example, metal oxide nanoparticles dispersed in a polar solvent can be applied for both an ETL and an HTL.…”

Section: Introductionmentioning

confidence: 99%

Adjusted Bulk and Interfacial Properties in Highly Stable Semitransparent Perovskite Solar Cells Fabricated by Thermocompression Bonding between Perovskite Layers

Jung

Kim

et al. 2023

ACS Appl. Mater. Interfaces

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In order to shield perovskite solar cells (PSCs) from extrinsic degradation factors and ensure long-term stability, effective encapsulation technology is indispensable. Here, a facile process is developed to create a glass−glass encapsulated semitransparent PSC using thermocompression bonding. From quantifying the interfacial adhesion energy and considering the power conversion efficiency of devices, it is confirmed that bonding between perovskite layers formed on a hole transport layer (HTL)/indiumdoped tin oxide (ITO) glass and an electron transport layer (ETL)/ITO glass can offer an excellent lamination method. The PSCs fabricated through this process have only buried interfaces between the perovskite layer and both charge transport layers as the perovskite surface is transformed into bulk. The thermocompression process leads the perovskite to have larger grains and smoother, denser interfaces, thereby not only reducing defect and trap density but also suppressing ion migration and phase segregation under illumination. In addition, the laminated perovskite demonstrates enhanced stability against water. The self-encapsulated semitransparent PSCs with a wide-band-gap perovskite (E g ∼ 1.67 eV) demonstrate a power conversion efficiency of 17.24% and maintain long-term stability with PCE > ∼90% in the 85 °C shelf test for over 3000 h and with PCE > ∼95% under AM 1.5 G, 1-sun illumination in an ambient atmosphere for over 600 h.

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Recent Progress in Materials and Device Design for Semitransparent Photovoltaic Technologies

Kumar,

You,

Vomiero

2023

Advanced Energy Materials

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Semitransparent photovoltaic (STPV) solar cells offer an immense opportunity to expand the scope of photovoltaics to special applications such as windows, facades, skylights, and so on. These new opportunities have encouraged researchers to develop STPVs using traditional thin‐film solar cell technologies (amorphous‐Si, CdTe, and CIGS or emerging solar cells (organic, perovskites, and dye‐sensitized). There are considerable improvements in both power conversion efficiency (PCE) and semitransparency of these STPV devices. This review studies the device structure of state‐of‐the‐art STPV devices and thereby analyzes the different approaches toward maximizing the product of PCE and average visible transmittance. The origins of PCE losses during the opaque‐to‐semitransparent transition in the different STPV technologies are discussed. In addition, critical practical aspects relevant to all STPV devices, such as compatibility of the top transparent electrode with the device structure, buffer layer optimization, light management engineering, scale‐up, and stability, are also reported. This overview is expected to facilitate researchers across different technologies to identify and overcome the challenges toward achieving higher light utilization efficiencies in STPVs.

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Highly Efficient Self-Encapsulated Flexible Semitransparent Perovskite Solar Cells via Bifacial Cation Exchange

Cited by 16 publications

References 35 publications

Functional Layers of Inverted Flexible Perovskite Solar Cells and Effective Technologies for Device Commercialization

Functional Layers of Inverted Flexible Perovskite Solar Cells and Effective Technologies for Device Commercialization

Adjusted Bulk and Interfacial Properties in Highly Stable Semitransparent Perovskite Solar Cells Fabricated by Thermocompression Bonding between Perovskite Layers

Recent Progress in Materials and Device Design for Semitransparent Photovoltaic Technologies

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