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| 1 | Multiband emission from single β-NaYF_(4)(Yb,Er) nanoparticles at high excitation power densities and comparison to ensemble studies显示文摘Ensemble and single particle studies of the excitation power density (P)-dependent upconversion luminescence (UCL) of core and core-shell β-NaYF_(4):Yb,Er upconversion nanoparticles (UCNPs) doped with 20% Yb^(3+) and 1% or 3% Er^(^(3+)) performed over a P regime of 6 orders of magnitude reveal an increasing contribution of the emission from high energy Er^(3+) levels at P > 1 kW/cm^(2). This changes the overall emission color from initially green over yellow to white. While initially the green and with increasing P the red emission dominate in ensemble measurements at P < 1 kW/cm^(2), the increasing population of higher Er^(^(3+)) energy levels by multiphotonic processes at higher P in single particle studies results in a multitude of emission bands in the ultraviolet/visible/near infrared (UV/vis/NIR) accompanied by a decreased contribution of the red luminescence. Based upon a thorough analysis of the P-dependence of UCL, the emission bands activated at high P were grouped and assigned to 2–3, 3–4, and 4 photonic processes involving energy transfer (ET), excited-state absorption (ESA), cross-relaxation (CR), back energy transfer (BET), and non-radiative relaxation processes (nRP). This underlines the P-tunability of UCNP brightness and color and highlights the potential of P-dependent measurements for mechanistic studies required to manifest the population pathways of the different Er^(3+) levels. | Florian Frenzel Christian Würth Oleksii Dukhno Frédéric Przybilla Lisa MWiesholler Verena Muhr Thomas Hirsch Yves Mély Ute Resch-Genger | 2021 | Nano Research2021，14，11： | 3 |
| 2 | Epidermal growth factor receptor gene and protein and Gefitinib sensitivity in non-small-cell lung cancer 显示文摘 | Cappuzzo F Hirsch FR Rossi E | 2005 | J Natl Cancer Inst2005，97，： | 1 |
| 3 | Epidermal growth factor receptor gene and protein and gefitinib sensitivity in non-small cell lung cancer显示文摘 | Cappuzz OF Hirsch FR Rossi E | 2005 | J Nail Cancer Inst2005，97，9： | 1 |
| 4 | Epidermal growth factor receptor family in lung cancer and premalignancy显示文摘 | Franklin WA Veve R Hirsch FR | 2002 | Semin Oncol2002，29，1： | 1 |
| 5 | Epidermal growth factor receptor gene and protein and gefitinib sensitivity in non-small-cell lung cancer显示文摘 | Cappuzzd F Hirsch FR Rossi E | 2005 | J Natl Cancer Inst2005，97，： | 1 |
| 6 | Epidemal growth factor receptor gene and protein and gefitinib sensitivity in non-small- cell lung cancer显示文摘 | Cappuzz OF Hirsch FR Rossi E | 2005 | J Natl Cancer Inst2005，97，9： | 1 |
| 7 | Epidermal growth factor receptor in non-small-cell lung carcinomas: correlation between gene copy number and protein expression and impact on prognosis 显示文摘 | Hirsch FR Marileila VG Bunn JPA | 2003 | J Clin Oncol2003，，： | 1 |
| 8 | Molecular predictors of outcome with gefitinib in a phase Ⅲ placebo-controlled study in advanced non-small-cell lung cancer显示文摘 | Hirsch FR Varella-Garcia M Jr Bunn P A | | 0，，31： | 1 |
| 9 | EGFR testing in lung cancer is ready for prime time 显示文摘 | Hirsch FR Bunn PA Jr | 2009 | Lancet Oncol2009，10，5： | 1 |
| 10 | Epidermal growth factor receptor a)gene and protein and gefitinib sensitivity in non-small- cell lung cancer显示文摘 | Cappuzzo F Hirsch FR Rossi E | 2005 | J Natl Cancer Inst2005，97，9： | 1 |
| 11 | The role of HER2/neu expression and trastuzumab in non - small cell lung cancer 显示文摘 | Hirsch FR Langer CJ | 2004 | Semin Oncol2004，31，： | 1 |
| 12 | Tumor hetero- geneity in lung cancer hased on light microscopic features 显示文摘 | Hirsch FR Ottesen G Podenphant J | 1985 | Virchows Arch1985，402，： | 1 |
| 13 | A randomized, Phase I1 , biomarker-se|ected study comparing erlotinib to erIotinib intercalated with chemotherapy in first-line therapy for advanced non-small-cell lung cancer 显示文摘 | Hirsch FR | 2011 | J Clin Oncol2011，29，26： | 1 |
| 14 | Epidermal growth factor receptor in non-small-cell lung carcinomas:correlation between gene copy number and protein expression and impact on prognosis显示文摘 | Hirsch FR Varella-Garcia M Bunn PA Jr | 2003 | J Clin Oncol2003，21，： | 1 |
| 15 | The E-cadherin cell-cell adhesion complex and lung cancer invasion, metastasis, and lung cancer invasion, metastasis, and prognosis 显示文摘 | Bremnes RM Veve R Hirsch FR | 2002 | Lung Cancer2002，36，： | 1 |
| 16 | Epidemaal growth factor receptor family in lung cancer and premalignancy显示文摘 | Franklin WA VeVe R Hirsch FR | 2002 | Semin Oncol2002，29，14： | 1 |
| 17 | The mTOR pathway in lung cancer and implications for therapy and biomarker analysis显示文摘 | Ekman S Wynes MW Hirsch FR | | 0，，： | 1 |
| 18 | Epidermal grow-th factor receptor gene and protein and gefitinib sensitivi-ty in non-small-cell lung cancer显示文摘 | Cappuzzo F Hirsch FR Rossi E | 2005 | J Nat Cancer Insti-tute2005，97，9： | 1 |
| 19 | Epidermal growth factor receptor gene and protein and gefitinib sensitivity in non-small- cell lung cancer显示文摘 | Cappuzzo F Hirsch FR Rossi E | 2005 | J Natl Cancer Inst2005，97，9： | 1 |
| 20 | Prognostic impact of histologic demonstration of chromogranin A and neuron-specific enolase in pulmonary adenocarcinoma显示文摘 | Skov BG Sorensen JB Hirsch FR | 1991 | Ann Oncol1991，2，5： | 1 |
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