Ultralight flexible perovskite solar cells

Polarity and moisture induced trans-grain-boundaries 2D/3D coupling structure for flexible perovskite solar cells with high mechanical reliability and efficiency

“…The first strategy has been adopted in the case of ultra-thin f-PSCs. [24][25][26][27] The stress-neutral axis was shifted toward the MHP film thanks to using an ultrathin substrate (less than 10 mm), thereby enabling the stress on the MHP film to significantly alleviate. As a result, ultra-thin f-PSCs exhibited excellent mechanical stability while almost no PCE decrease was observed after 10 000 bending cycles.…”

Versatile organic photovoltaics with a power density of nearly 40 W g−1

“…4(e) and Table S7, ESI†). 43,51–53 As shown in supplementary movie (ESI†), we demonstrate the weighing process of a 1.5 × 1.5 cm ultra-thin OPVs. To better demonstrate the ultra-lightweight characteristics, we put the ultra-flexible OPVs on a crown of the dandelion and on a single human hair, as shown in Fig.…”

Opportunities and challenges of hole transport materials for high‐performance inverted hybrid‐perovskite solar cells

“…[ 15 ] Note that flexible PTAA‐based inverted‐PSCs could be fabricated if the rigid ITO is replaced by a flexible substrate, for example, the parylene‐VT4. [ 16 ]…”

“…[15] Note that flexible PTAA-based inverted-PSCs could be fabricated if the rigid ITO is replaced by a flexible substrate, for example, the parylene-VT4. [16] Polyelectrolytes are another type of efficient HTMs for inverted-PSCs. Fang et al used the poly[3-(4carboxybutyl)thiophene-2,5-diyl]-Na (P3CT-Na) as HTM to obtain an average efficiency of 15.4%.…”